Broadway Hill weather forecast.

112 m summit in Bannau Brycheiniog (Brecon Beacons). 8 forecast days covering wind, cloud, rain and temperature, updated 21 September 2026 at 16:08 UTC.

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Confidence: High
Overall hill weather88/100Excellent
Wind5-15 mph southwesterly Gusts10-20 mph Feels like10 to 14°C PrecipitationLittle or none Cloud-free summit estimate95% Freezing levelAbove summit DaylightSunrise 07:02 · Sunset 19:20 · 12.3 hours daylight

The day on the hill

Little rain and limited summit cloud on Broadway Hill: summit wind broadly 5-15 mph, with gusts 10-20 mph at times (light winds).

Cloud & views

Cloud base mostly around 700–1000 m through daylight. The summit is likely to stay mostly clear.

Very little direct sunshine is likely, with extensive cloud.

Rain & temperature

Little or no rain is forecast.

Sunshine context Model-grid estimate, not summit sunshine

The surrounding model grid indicates 0 h of sunshine. This is not a forecast of time in sunshine on the summit. Use the cloud and views outlook above for the conditions on this mountain.

Early
0 h
Midday
0 h
Later
0 h
Morning · 08:00–12:00 Excellent Summit winds around 5-15 mph. Gusts around 10-20 mph are possible on exposed ground.
88/100
Afternoon · 12:00–17:00 Excellent Summit winds around 0-10 mph. Gusts around 5-15 mph are possible on exposed ground.
88/100

Compare an early start with later conditions. The main forecast above covers the day in more detail.

Daytime · exposed rockClimbing & scramblingBetaRock is likely to be mostly dry, but check for local dampness. Excellent100/100 View detailsHide details
Generic exposed-rock guidance

Full climbing & scrambling outlook

Conditions for exposed scrambling look excellent (100/100). Rock is likely to be mostly dry, though seepage and shaded holds are not resolved. The mapped summit rock is Mudstone (Portfield Formation And Haverford Mudstone Formation (Undifferentiated)). Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp.

Rock surfaceProbably dryPeak gust13 mphRain0.0 mm
Mapped summit rock Mudstone Portfield Formation And Haverford Mudstone Formation (Undifferentiated)
Origin
Sedimentary
Rock family
Slate or mudstone
Mapping
BGS Geology 50K · 1:50,000
Rock-response profile
Moderate confidence
View the summit BGS record

Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp. Summit-point bedrock mapping; the actual route may cross different rock, superficial deposits, polish, lichen or seepage.

Generic exposed scrambling terrain; mapped summit-point bedrock is included where available, but route grade, exact rock, polish, drainage and escape options remain unresolved. Contains British Geological Survey materials © UKRI 2026. How to use the climbing and scrambling forecast.

Did this match your experience?Tell us about the rock surface and wind to help improve this beta forecast.Give feedback

A broad surface report is enough; you do not need to identify a particular route.

Overnight · Aurora, stars & meteorsAfter darkBetaClearer spells are possible, but other forecasts keep much of the sky obscured by cloud. View forecastClose forecast

After dark: aurora and stargazing

Night beginning 2026-09-21. All times are UK local time.

Stargazing

Poor sky conditions during the best available spell: 21 Sep, 21:15 BST to 22:00 BST.

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

Moon-free dark sky: 22 Sep, 01:35 BST to 05:10 BST.

Sky conditions through the night
Fully dark periods. Conditions can change between forecast hours.
TimeViewing conditions
21 Sep, 21:15 BST to 22:00 BSTPoor sky conditions

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

Forecast models disagree.

21 Sep, 22:00 BST to 23:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects. Moonlight washes out fainter stars.

21 Sep, 23:00 BST to 22 Sep, 00:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects.

22 Sep, 00:00 BST to 01:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects.

22 Sep, 01:00 BST to 02:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects.

22 Sep, 02:00 BST to 03:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects.

22 Sep, 03:00 BST to 04:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects.

22 Sep, 04:00 BST to 05:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects.

22 Sep, 05:00 BST to 05:10 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Rain may interrupt viewing. Reduced visibility may obscure faint objects.

Moon, darkness and meteor showers

Gibbous moon, about 78% illuminated.

Moonrise around 21 Sep, 17:40 BST.

Moonset around 22 Sep, 01:35 BST.

Full darkness: 21 Sep, 21:15 BST to 22 Sep, 05:10 BST.

Moon times assume an open horizon. Hills can hide the Moon sooner. Moon-free does not mean cloud-free.

Southern Taurids are active on this night. Activity may be much lower away from the peak.

  • Draconids: peak around 9 October 2026.
  • Southern Taurids: peak around 10 October 2026.
  • Orionids: peak around 21 October 2026.
  • Northern Taurids: peak around 12 November 2026.
  • Leonids: peak around 18 November 2026.
  • Geminids: peak around 14 December 2026.
  • Ursids: peak around 22 December 2026.

Dates from the Royal Observatory Greenwich. Activity dates do not guarantee visible meteors. Look across a broad, dark sky, not only north.

Darkness of the surroundings

Estimated darkness rank 793 of 980 assessed peaks (1 is darkest), based on surrounding artificial light in 2021. This is not a measurement of tonight’s sky.

2021 artificial-light baseline, not measured sky brightness or a Bortle class. Changes to lighting, blue-rich LEDs, terrain screening, atmospheric scattering and cloud-reflected light are not resolved. Similar ranks are not meaningfully distinct. Darkness is not a recommendation to climb a summit at night.

VIIRS nighttime lights: Earth Observation Group, Payne Institute for Public Policy, Colorado School of Mines. Reprocessed by OpenGeoHub/OpenLandMap. Cropped and ranked by Mountain Weather.

Sky-weather grades exclude light pollution, terrain and thin haze. They are not mountain safety ratings. Check the mountain and camping forecast separately. Accessible lower viewpoints may be a better choice than summits.

Recommended kit for this dayWeather-aware packing prompts, plus your core hillwalking kitView kit

For a day hillwalk, not a complete route-specific checklist. Carry navigation and backup you can use, warm and waterproof layers, suitable footwear, food and water, a headtorch, emergency shelter, first aid and a way to call for help. Snow, ice, technical terrain and overnight trips need additional equipment and skills.

Does the weather shape your plans?Optional hill-user research. One answer helps; further questions are up to you.Take part

Help the Mountain Decisions Project understand how forecasts influence hill days, including when plans stay the same. Findings will be shared publicly as summaries, not individual responses.

This is about Broadway Hill on Monday 21 September 2026. It asks about intentions, not whether you actually went out. No name or account is needed.

Open the questions to take part.

About the research and your privacy · Already been out? Share that experience instead

Confidence: High
Overall hill weather84/100Good
Wind0-15 mph westerly Gusts5-15 mph Feels like12 to 16°C PrecipitationUp to around 2 mm Cloud-free summit estimate90% Cloud base through day100-900 m Freezing levelAbove summit DaylightSunrise 07:04 · Sunset 19:18 · 12.2 hours daylight

The day on the hill

On Broadway Hill: summit wind broadly 0-15 mph, with gusts 5-15 mph at times (light winds). Very little direct sunshine is likely, with extensive cloud.

Rain & temperature

Some rain is likely, totalling up to around 2 mm, but its timing and local amounts are uncertain.

Cloud-free timing: Around 50% early, improving to around 95% later.

Sunshine context Model-grid estimate, not summit sunshine

The surrounding model grid indicates Less than 1 hour of sunshine. This is not a forecast of time in sunshine on the summit. Use the cloud and views outlook above for the conditions on this mountain.

Early
Less than 1 hour
Midday
0 h
Later
0 h
Morning · 08:00–12:00 Good Summit winds around 0-10 mph. Gusts around 5-15 mph are possible on exposed ground. Summit cloud is more persistent early in this period, with better prospects later.
82/100
Afternoon · 12:00–17:00 Excellent Summit winds around 0-10 mph. Gusts around 5-15 mph are possible on exposed ground. Rain is forecast during this period.
87/100

Compare an early start with later conditions. The main forecast above covers the day in more detail.

Daytime · exposed rockClimbing & scramblingBetaWet rock is likely. Poor44/100 View detailsHide details
Generic exposed-rock guidance

Full climbing & scrambling outlook

Conditions for exposed scrambling look mixed (44/100). Rain during the climbing period is likely to leave rock wet and more slippery. The mapped summit rock is Mudstone (Portfield Formation And Haverford Mudstone Formation (Undifferentiated)). Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp.

Rock surfaceWet rock likelyPeak gust12 mphRain1.3 mm
Main concernwet rock likely
Mapped summit rock Mudstone Portfield Formation And Haverford Mudstone Formation (Undifferentiated)
Origin
Sedimentary
Rock family
Slate or mudstone
Mapping
BGS Geology 50K · 1:50,000
Rock-response profile
Moderate confidence
View the summit BGS record

Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp. Summit-point bedrock mapping; the actual route may cross different rock, superficial deposits, polish, lichen or seepage.

Generic exposed scrambling terrain; mapped summit-point bedrock is included where available, but route grade, exact rock, polish, drainage and escape options remain unresolved. Contains British Geological Survey materials © UKRI 2026. How to use the climbing and scrambling forecast.

Did this match your experience?Tell us about the rock surface and wind to help improve this beta forecast.Give feedback

A broad surface report is enough; you do not need to identify a particular route.

Overnight · Aurora, stars & meteorsAfter darkBetaClearer spells are possible, but other forecasts keep much of the sky obscured by cloud. View forecastClose forecast

After dark: aurora and stargazing

Night beginning 2026-09-22. All times are UK local time.

Stargazing

Poor sky conditions during the best available spell: 22 Sep, 21:10 BST to 22:00 BST.

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

Moon-free dark sky: 23 Sep, 02:50 BST to 05:10 BST.

Sky conditions through the night
Fully dark periods. Conditions can change between forecast hours.
TimeViewing conditions
22 Sep, 21:10 BST to 22:00 BSTPoor sky conditions

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

Forecast models disagree.

22 Sep, 22:00 BST to 23:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

22 Sep, 23:00 BST to 23 Sep, 00:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

23 Sep, 00:00 BST to 01:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects. Moonlight washes out fainter stars.

23 Sep, 01:00 BST to 02:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects.

23 Sep, 02:00 BST to 03:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects.

23 Sep, 03:00 BST to 04:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects.

23 Sep, 04:00 BST to 05:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects.

23 Sep, 05:00 BST to 05:10 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects.

Moon, darkness and meteor showers

Gibbous moon, about 85% illuminated.

Moonrise around 22 Sep, 17:55 BST.

Moonset around 23 Sep, 02:50 BST.

Full darkness: 22 Sep, 21:10 BST to 23 Sep, 05:10 BST.

Moon times assume an open horizon. Hills can hide the Moon sooner. Moon-free does not mean cloud-free.

Southern Taurids are active on this night. Activity may be much lower away from the peak.

  • Draconids: peak around 9 October 2026.
  • Southern Taurids: peak around 10 October 2026.
  • Orionids: peak around 21 October 2026.
  • Northern Taurids: peak around 12 November 2026.
  • Leonids: peak around 18 November 2026.
  • Geminids: peak around 14 December 2026.
  • Ursids: peak around 22 December 2026.

Dates from the Royal Observatory Greenwich. Activity dates do not guarantee visible meteors. Look across a broad, dark sky, not only north.

Darkness of the surroundings

Estimated darkness rank 793 of 980 assessed peaks (1 is darkest), based on surrounding artificial light in 2021. This is not a measurement of tonight’s sky.

2021 artificial-light baseline, not measured sky brightness or a Bortle class. Changes to lighting, blue-rich LEDs, terrain screening, atmospheric scattering and cloud-reflected light are not resolved. Similar ranks are not meaningfully distinct. Darkness is not a recommendation to climb a summit at night.

VIIRS nighttime lights: Earth Observation Group, Payne Institute for Public Policy, Colorado School of Mines. Reprocessed by OpenGeoHub/OpenLandMap. Cropped and ranked by Mountain Weather.

Sky-weather grades exclude light pollution, terrain and thin haze. They are not mountain safety ratings. Check the mountain and camping forecast separately. Accessible lower viewpoints may be a better choice than summits.

Recommended kit for this dayWeather-aware packing prompts, plus your core hillwalking kitView kit

For a day hillwalk, not a complete route-specific checklist. Carry navigation and backup you can use, warm and waterproof layers, suitable footwear, food and water, a headtorch, emergency shelter, first aid and a way to call for help. Snow, ice, technical terrain and overnight trips need additional equipment and skills.

Does the weather shape your plans?Optional hill-user research. One answer helps; further questions are up to you.Take part

Help the Mountain Decisions Project understand how forecasts influence hill days, including when plans stay the same. Findings will be shared publicly as summaries, not individual responses.

This is about Broadway Hill on Tuesday 22 September 2026. It asks about intentions, not whether you actually went out. No name or account is needed.

Open the questions to take part.

About the research and your privacy · Already been out? Share that experience instead

Confidence: High
Overall hill weather80/100Good
Wind10-20 mph northerly Gusts20-30 mph Feels like8 to 12°C PrecipitationAround 2-5 mm Cloud-free summit estimate95% Freezing levelAbove summit DaylightSunrise 07:06 · Sunset 19:16 · 12.2 hours daylight

The day on the hill

On Broadway Hill: summit wind broadly 10-20 mph, with gusts 20-30 mph at times (a moderate breeze).

Things to watch

Thunder watch from early morning into around midday: a small but credible risk is present. Watch for growing clouds and leave exposed tops if thunder develops.

If a thunderstorm develops, sudden gusts and heavy rain can change conditions quickly.

Cloud & views

Cloud base mostly around 600–900 m through daylight. The summit is likely to stay mostly clear.

Rain & temperature

Some rain is likely, totalling around 2-5 mm, but its timing and local amounts are uncertain.

Cloud-free timing: Around 80% early, improving to around 95% later.

Sunshine context Model-grid estimate, not summit sunshine

The surrounding model grid indicates 8 h of sunshine. This is not a forecast of time in sunshine on the summit. Use the cloud and views outlook above for the conditions on this mountain.

Early
0 h
Midday
3.8 h
Later
2.3 h
Morning · 08:00–12:00 Good Summit winds around 10-20 mph. Gusts around 15-25 mph are possible on exposed ground. Rain is forecast during this period.
80/100
Afternoon · 12:00–17:00 Good Rain eases compared with the morning. Summit winds around 10-20 mph. Gusts around 20-30 mph are possible on exposed ground.
81/100

Compare an early start with later conditions. The main forecast above covers the day in more detail.

Daytime · exposed rockClimbing & scramblingBetaWet rock is likely. Slight thunderstorm risk. Avoid exposed rock if storms develop. Mixed53/100 View detailsHide details
Generic exposed-rock guidance

Full climbing & scrambling outlook

Conditions for exposed scrambling look mixed (53/100). Rain during the climbing period is likely to leave rock wet and more slippery. The mapped summit rock is Mudstone (Portfield Formation And Haverford Mudstone Formation (Undifferentiated)). Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp. Slight thunderstorm risk, broadly from early morning into around midday. Avoid committing to exposed ground if storms develop.

Rock surfaceWet rock likelyPeak gust23 mphRain2.2 mm
Main factorsslight thunderstorm risk on exposed groundwet rock likely
Mapped summit rock Mudstone Portfield Formation And Haverford Mudstone Formation (Undifferentiated)
Origin
Sedimentary
Rock family
Slate or mudstone
Mapping
BGS Geology 50K · 1:50,000
Rock-response profile
Moderate confidence
View the summit BGS record

Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp. Summit-point bedrock mapping; the actual route may cross different rock, superficial deposits, polish, lichen or seepage.

Generic exposed scrambling terrain; mapped summit-point bedrock is included where available, but route grade, exact rock, polish, drainage and escape options remain unresolved. Contains British Geological Survey materials © UKRI 2026. How to use the climbing and scrambling forecast.

Did this match your experience?Tell us about the rock surface and wind to help improve this beta forecast.Give feedback

A broad surface report is enough; you do not need to identify a particular route.

Overnight · Aurora, stars & meteorsAfter darkBetaClearer spells are possible, but other forecasts keep much of the sky obscured by cloud. View forecastClose forecast

After dark: aurora and stargazing

Night beginning 2026-09-23. All times are UK local time.

Stargazing

Mixed sky conditions during the best available spell: 24 Sep, 04:00 BST to 05:00 BST.

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

Moon-free dark sky: 24 Sep, 04:05 BST to 05:15 BST.

Sky conditions through the night
Fully dark periods. Conditions can change between forecast hours.
TimeViewing conditions
23 Sep, 21:10 BST to 22:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

23 Sep, 22:00 BST to 23:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

23 Sep, 23:00 BST to 24 Sep, 00:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

24 Sep, 00:00 BST to 01:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

24 Sep, 01:00 BST to 02:00 BSTPoor sky conditions

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

Forecast models disagree.

24 Sep, 02:00 BST to 03:00 BSTPoor sky conditions

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

Forecast models disagree.

24 Sep, 03:00 BST to 04:00 BSTMixed sky conditions

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

Forecast models disagree.

24 Sep, 04:00 BST to 05:00 BSTMixed sky conditions

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

Forecast models disagree.

24 Sep, 05:00 BST to 05:15 BSTMixed sky conditions

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

Forecast models disagree.

Moon, darkness and meteor showers

Gibbous moon, about 92% illuminated.

Moonrise around 23 Sep, 18:10 BST.

Moonset around 24 Sep, 04:05 BST.

Full darkness: 23 Sep, 21:10 BST to 24 Sep, 05:15 BST.

Moon times assume an open horizon. Hills can hide the Moon sooner. Moon-free does not mean cloud-free.

Southern Taurids are active on this night. Activity may be much lower away from the peak.

  • Draconids: peak around 9 October 2026.
  • Southern Taurids: peak around 10 October 2026.
  • Orionids: peak around 21 October 2026.
  • Northern Taurids: peak around 12 November 2026.
  • Leonids: peak around 18 November 2026.
  • Geminids: peak around 14 December 2026.
  • Ursids: peak around 22 December 2026.

Dates from the Royal Observatory Greenwich. Activity dates do not guarantee visible meteors. Look across a broad, dark sky, not only north.

Darkness of the surroundings

Estimated darkness rank 793 of 980 assessed peaks (1 is darkest), based on surrounding artificial light in 2021. This is not a measurement of tonight’s sky.

2021 artificial-light baseline, not measured sky brightness or a Bortle class. Changes to lighting, blue-rich LEDs, terrain screening, atmospheric scattering and cloud-reflected light are not resolved. Similar ranks are not meaningfully distinct. Darkness is not a recommendation to climb a summit at night.

VIIRS nighttime lights: Earth Observation Group, Payne Institute for Public Policy, Colorado School of Mines. Reprocessed by OpenGeoHub/OpenLandMap. Cropped and ranked by Mountain Weather.

Sky-weather grades exclude light pollution, terrain and thin haze. They are not mountain safety ratings. Check the mountain and camping forecast separately. Accessible lower viewpoints may be a better choice than summits.

Recommended kit for this dayWeather-aware packing prompts, plus your core hillwalking kitView kit

For a day hillwalk, not a complete route-specific checklist. Carry navigation and backup you can use, warm and waterproof layers, suitable footwear, food and water, a headtorch, emergency shelter, first aid and a way to call for help. Snow, ice, technical terrain and overnight trips need additional equipment and skills.

Does the weather shape your plans?Optional hill-user research. One answer helps; further questions are up to you.Take part

Help the Mountain Decisions Project understand how forecasts influence hill days, including when plans stay the same. Findings will be shared publicly as summaries, not individual responses.

This is about Broadway Hill on Wednesday 23 September 2026. It asks about intentions, not whether you actually went out. No name or account is needed.

Open the questions to take part.

About the research and your privacy · Already been out? Share that experience instead

Confidence: High
Overall hill weather86/100Excellent
Wind10-20 mph southerly Gusts20-30 mph Feels like4 to 8°C PrecipitationLittle or none Cloud-free summit estimate95% Freezing levelAbove summit DaylightSunrise 07:07 · Sunset 19:13 · 12.1 hours daylight

The day on the hill

Little rain and limited summit cloud on Broadway Hill: summit wind broadly 10-20 mph, with gusts 20-30 mph at times (a moderate breeze). Patchy mist is possible in sheltered valleys early on.

Cloud & views

Cloud base around 600–900 m in the morning, lifting to 800–1100 m around midday. The summit is likely to stay mostly clear.

Rain & temperature

Little or no rain is forecast.

Forecast confidence

Cloud height remains uncertain, especially where it is close to summit level.

Sunshine context Model-grid estimate, not summit sunshine

The surrounding model grid indicates 9 h of sunshine. This is not a forecast of time in sunshine on the summit. Use the cloud and views outlook above for the conditions on this mountain.

Early
1.9 h
Midday
2.1 h
Later
3 h
Morning · 08:00–12:00 Excellent Summit winds around 10-20 mph. Gusts around 20-30 mph are possible on exposed ground.
86/100
Afternoon · 12:00–17:00 Excellent Summit winds around 10-20 mph. Gusts around 15-25 mph are possible on exposed ground.
86/100

Compare an early start with later conditions. The main forecast above covers the day in more detail.

Daytime · exposed rockClimbing & scramblingBetaRock may be damp or still drying. Good79/100 View detailsHide details
Generic exposed-rock guidance

Full climbing & scrambling outlook

Conditions for exposed scrambling look good (79/100). Some rock may still be damp or drying, especially on polished slabs and vegetated sections. The mapped summit rock is Mudstone (Portfield Formation And Haverford Mudstone Formation (Undifferentiated)). Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp.

Rock surfaceDamp or dryingPeak gust23 mphRain0.0 mm
Main concerndamp or incompletely dried rock possible
Mapped summit rock Mudstone Portfield Formation And Haverford Mudstone Formation (Undifferentiated)
Origin
Sedimentary
Rock family
Slate or mudstone
Mapping
BGS Geology 50K · 1:50,000
Rock-response profile
Moderate confidence
View the summit BGS record

Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp. Summit-point bedrock mapping; the actual route may cross different rock, superficial deposits, polish, lichen or seepage.

Generic exposed scrambling terrain; mapped summit-point bedrock is included where available, but route grade, exact rock, polish, drainage and escape options remain unresolved. Contains British Geological Survey materials © UKRI 2026. How to use the climbing and scrambling forecast.

Did this match your experience?Tell us about the rock surface and wind to help improve this beta forecast.Give feedback

A broad surface report is enough; you do not need to identify a particular route.

Overnight · Aurora, stars & meteorsAfter darkBetaCloud breaks may offer some views of the stars. Moonlight washes out fainter stars. View forecastClose forecast

After dark: aurora and stargazing

Night beginning 2026-09-24. All times are UK local time.

Stargazing

Mixed sky conditions during the best available spell: 24 Sep, 22:00 BST to 23:00 BST.

Cloud breaks may offer some views of the stars. Moonlight washes out fainter stars.

A bright Moon remains above the horizon through full darkness, washing out fainter stars and meteors.

Sky conditions through the night
Fully dark periods. Conditions can change between forecast hours.
TimeViewing conditions
24 Sep, 21:05 BST to 22:00 BSTMixed sky conditions

Cloud breaks may offer some views of the stars. Moonlight washes out fainter stars.

24 Sep, 22:00 BST to 23:00 BSTMixed sky conditions

Cloud breaks may offer some views of the stars. Moonlight washes out fainter stars.

24 Sep, 23:00 BST to 25 Sep, 00:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

25 Sep, 00:00 BST to 01:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

25 Sep, 01:00 BST to 02:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

25 Sep, 02:00 BST to 03:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

25 Sep, 03:00 BST to 04:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

25 Sep, 04:00 BST to 05:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Rain may interrupt viewing. Reduced visibility may obscure faint objects.

25 Sep, 05:00 BST to 05:15 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Rain may interrupt viewing.

Moon, darkness and meteor showers

Near-full moon, about 96% illuminated.

Moonrise around 24 Sep, 18:25 BST.

Moonset around 25 Sep, 05:20 BST.

Full darkness: 24 Sep, 21:05 BST to 25 Sep, 05:15 BST.

Moon times assume an open horizon. Hills can hide the Moon sooner. Moon-free does not mean cloud-free.

Southern Taurids are active on this night. Activity may be much lower away from the peak.

  • Draconids: peak around 9 October 2026.
  • Southern Taurids: peak around 10 October 2026.
  • Orionids: peak around 21 October 2026.
  • Northern Taurids: peak around 12 November 2026.
  • Leonids: peak around 18 November 2026.
  • Geminids: peak around 14 December 2026.
  • Ursids: peak around 22 December 2026.

Dates from the Royal Observatory Greenwich. Activity dates do not guarantee visible meteors. Look across a broad, dark sky, not only north.

Darkness of the surroundings

Estimated darkness rank 793 of 980 assessed peaks (1 is darkest), based on surrounding artificial light in 2021. This is not a measurement of tonight’s sky.

2021 artificial-light baseline, not measured sky brightness or a Bortle class. Changes to lighting, blue-rich LEDs, terrain screening, atmospheric scattering and cloud-reflected light are not resolved. Similar ranks are not meaningfully distinct. Darkness is not a recommendation to climb a summit at night.

VIIRS nighttime lights: Earth Observation Group, Payne Institute for Public Policy, Colorado School of Mines. Reprocessed by OpenGeoHub/OpenLandMap. Cropped and ranked by Mountain Weather.

Sky-weather grades exclude light pollution, terrain and thin haze. They are not mountain safety ratings. Check the mountain and camping forecast separately. Accessible lower viewpoints may be a better choice than summits.

Recommended kit for this dayWeather-aware packing prompts, plus your core hillwalking kitView kit

For a day hillwalk, not a complete route-specific checklist. Carry navigation and backup you can use, warm and waterproof layers, suitable footwear, food and water, a headtorch, emergency shelter, first aid and a way to call for help. Snow, ice, technical terrain and overnight trips need additional equipment and skills.

Does the weather shape your plans?Optional hill-user research. One answer helps; further questions are up to you.Take part

Help the Mountain Decisions Project understand how forecasts influence hill days, including when plans stay the same. Findings will be shared publicly as summaries, not individual responses.

This is about Broadway Hill on Thursday 24 September 2026. It asks about intentions, not whether you actually went out. No name or account is needed.

Open the questions to take part.

About the research and your privacy · Already been out? Share that experience instead

Confidence: Medium
Overall hill weather71/100Good
Wind10-20 mph westerly Gusts20-30 mph Feels like8 to 12°C PrecipitationAround 5-10 mm Cloud-free summit estimate95% Freezing levelAbove summit DaylightSunrise 07:09 · Sunset 19:11 · 12.0 hours daylight

The day on the hill

A wet day on Broadway Hill: summit wind broadly 10-20 mph, with gusts 20-30 mph at times (a moderate breeze).

Things to watch

Thunderstorms are possible from the morning into the afternoon. Keep an escape route from exposed ridges and descend if thunder develops.

If a thunderstorm develops, sudden gusts and heavy rain can change conditions quickly.

Cloud & views

Cloud base mostly around 500–800 m through daylight. The summit is likely to stay mostly clear.

Cloud may hang lower on western slopes and lift somewhat on the eastern side, but local terrain can differ. Drizzle is forecast for much of the day.

The forecast total is around 5-10 mm, but local amounts will vary.

Forecast confidence

Cloud height remains uncertain, especially where it is close to summit level. A low thunderstorm risk remains difficult to time precisely.

Sunshine context Model-grid estimate, not summit sunshine

The surrounding model grid indicates 9.1 h of sunshine. This is not a forecast of time in sunshine on the summit. Use the cloud and views outlook above for the conditions on this mountain.

Early
Less than 1 hour
Midday
4 h
Later
3 h
Morning · 08:00–12:00 Good Summit winds around 10-20 mph. Gusts around 15-25 mph are possible on exposed ground. Rain is forecast during this period.
78/100
Afternoon · 12:00–17:00 Mixed More rain is expected. Summit winds around 10-20 mph. Gusts around 20-30 mph are possible on exposed ground. Rain is forecast during this period. Some forecast models bring rain during the afternoon, while others keep it mostly dry.
64/100

Compare an early start with later conditions. The main forecast above covers the day in more detail.

Daytime · exposed rockClimbing & scramblingBetaWet rock is likely. Low thunderstorm risk. Avoid exposed rock if storms develop. Poor25/100 View detailsHide details
Generic exposed-rock guidance

Full climbing & scrambling outlook

Conditions for exposed scrambling look poor (25/100). Rain during the climbing period is likely to leave rock wet and more slippery. The mapped summit rock is Mudstone (Portfield Formation And Haverford Mudstone Formation (Undifferentiated)). Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp. Low thunderstorm risk, broadly from the morning into the afternoon. Avoid committing to exposed ground if storms develop.

Rock surfaceWet rock likelyPeak gust24 mphRain5.1 mm
Main factorslow thunderstorm risk on exposed groundwet rock likely
Mapped summit rock Mudstone Portfield Formation And Haverford Mudstone Formation (Undifferentiated)
Origin
Sedimentary
Rock family
Slate or mudstone
Mapping
BGS Geology 50K · 1:50,000
Rock-response profile
Moderate confidence
View the summit BGS record

Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp. Summit-point bedrock mapping; the actual route may cross different rock, superficial deposits, polish, lichen or seepage.

Generic exposed scrambling terrain; mapped summit-point bedrock is included where available, but route grade, exact rock, polish, drainage and escape options remain unresolved. Contains British Geological Survey materials © UKRI 2026. How to use the climbing and scrambling forecast.

Did this match your experience?Tell us about the rock surface and wind to help improve this beta forecast.Give feedback

A broad surface report is enough; you do not need to identify a particular route.

Overnight · Aurora, stars & meteorsAfter darkBetaCloud is likely to obscure much of the sky. Moonlight washes out fainter stars. View forecastClose forecast

After dark: aurora and stargazing

Night beginning 2026-09-25. All times are UK local time.

Aurora outlook

Slightly raised activity; unlikely to reach this horizon.

A broad activity outlook, not a forecast of a visible display. Cloud and activity can change before the night.

Stargazing

Poor sky conditions during the best available spell: 25 Sep, 21:05 BST to 22:00 BST.

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

A bright Moon remains above the horizon through full darkness, washing out fainter stars and meteors.

Sky conditions through the night
Fully dark periods. Conditions can change between forecast hours.
TimeViewing conditions
25 Sep, 21:05 BST to 22:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

25 Sep, 22:00 BST to 23:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

25 Sep, 23:00 BST to 26 Sep, 00:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

26 Sep, 00:00 BST to 01:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

26 Sep, 01:00 BST to 02:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

26 Sep, 02:00 BST to 03:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

26 Sep, 03:00 BST to 04:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

26 Sep, 04:00 BST to 05:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

26 Sep, 05:00 BST to 05:20 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

Moon, darkness and meteor showers

Near-full moon, about 99% illuminated.

Moonrise around 25 Sep, 18:35 BST.

Moonset around 26 Sep, 06:40 BST.

Full darkness: 25 Sep, 21:05 BST to 26 Sep, 05:20 BST.

Moon times assume an open horizon. Hills can hide the Moon sooner. Moon-free does not mean cloud-free.

Southern Taurids are active on this night. Activity may be much lower away from the peak.

  • Draconids: peak around 9 October 2026.
  • Southern Taurids: peak around 10 October 2026.
  • Orionids: peak around 21 October 2026.
  • Northern Taurids: peak around 12 November 2026.
  • Leonids: peak around 18 November 2026.
  • Geminids: peak around 14 December 2026.
  • Ursids: peak around 22 December 2026.

Dates from the Royal Observatory Greenwich. Activity dates do not guarantee visible meteors. Look across a broad, dark sky, not only north.

Darkness of the surroundings

Estimated darkness rank 793 of 980 assessed peaks (1 is darkest), based on surrounding artificial light in 2021. This is not a measurement of tonight’s sky.

2021 artificial-light baseline, not measured sky brightness or a Bortle class. Changes to lighting, blue-rich LEDs, terrain screening, atmospheric scattering and cloud-reflected light are not resolved. Similar ranks are not meaningfully distinct. Darkness is not a recommendation to climb a summit at night.

VIIRS nighttime lights: Earth Observation Group, Payne Institute for Public Policy, Colorado School of Mines. Reprocessed by OpenGeoHub/OpenLandMap. Cropped and ranked by Mountain Weather.

Sky-weather grades exclude light pollution, terrain and thin haze. They are not mountain safety ratings. Check the mountain and camping forecast separately. Accessible lower viewpoints may be a better choice than summits.

Recommended kit for this dayWeather-aware packing prompts, plus your core hillwalking kitView kit

For a day hillwalk, not a complete route-specific checklist. Carry navigation and backup you can use, warm and waterproof layers, suitable footwear, food and water, a headtorch, emergency shelter, first aid and a way to call for help. Snow, ice, technical terrain and overnight trips need additional equipment and skills.

Does the weather shape your plans?Optional hill-user research. One answer helps; further questions are up to you.Take part

Help the Mountain Decisions Project understand how forecasts influence hill days, including when plans stay the same. Findings will be shared publicly as summaries, not individual responses.

This is about Broadway Hill on Friday 25 September 2026. It asks about intentions, not whether you actually went out. No name or account is needed.

Open the questions to take part.

About the research and your privacy · Already been out? Share that experience instead

Confidence: Medium
Overall hill weather86/100Excellent
Wind5-15 mph southwesterly Gusts10-20 mph Feels like2 to 6°C PrecipitationLittle or none Cloud-free summit estimate95% Cloud base through day100-1,300 m Freezing levelAbove summit DaylightSunrise 07:11 · Sunset 19:09 · 12.0 hours daylight

The day on the hill

Little rain and limited summit cloud on Broadway Hill: summit wind broadly 5-15 mph, with gusts 10-20 mph at times (light winds).

Cloud & views

Cloud base around 100–400 m in the morning, then around 1000–1300 m around midday and 900–1200 m by late afternoon. The summit is likely to stay mostly clear.

Rain & temperature

Little or no rain is forecast.

Forecast confidence

Cloud height remains uncertain, especially where it is close to summit level. Rain could reach the main walking period or hold off until later. Forecast models disagree on the timing.

Cloud-free timing: Around 75% early, improving to around 95% later.

Sunshine context Model-grid estimate, not summit sunshine

The surrounding model grid indicates 10 h of sunshine. This is not a forecast of time in sunshine on the summit. Use the cloud and views outlook above for the conditions on this mountain.

Early
1.7 h
Midday
4 h
Later
2.5 h
Morning · 08:00–12:00 Excellent Summit winds around 5-15 mph. Gusts around 10-20 mph are possible on exposed ground. Summit cloud is more persistent early in this period, with better prospects later.
87/100
Afternoon · 12:00–17:00 Good Summit winds around 5-15 mph. Gusts around 10-20 mph are possible on exposed ground. Rain is possible during the afternoon, but forecast models disagree on whether it will fall.
84/100

Compare an early start with later conditions. The main forecast above covers the day in more detail.

Daytime · exposed rockClimbing & scramblingBetaRock may be damp or still drying. Mixed64/100 View detailsHide details
Generic exposed-rock guidance

Full climbing & scrambling outlook

Conditions for exposed scrambling look fair (64/100). Some rock may still be damp or drying, especially on polished slabs and vegetated sections. The mapped summit rock is Mudstone (Portfield Formation And Haverford Mudstone Formation (Undifferentiated)). Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp.

Rock surfaceDamp or dryingPeak gust14 mphRainPossible · 50%
Main concerndamp or incompletely dried rock possible
Mapped summit rock Mudstone Portfield Formation And Haverford Mudstone Formation (Undifferentiated)
Origin
Sedimentary
Rock family
Slate or mudstone
Mapping
BGS Geology 50K · 1:50,000
Rock-response profile
Moderate confidence
View the summit BGS record

Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp. Summit-point bedrock mapping; the actual route may cross different rock, superficial deposits, polish, lichen or seepage.

Generic exposed scrambling terrain; mapped summit-point bedrock is included where available, but route grade, exact rock, polish, drainage and escape options remain unresolved. Contains British Geological Survey materials © UKRI 2026. How to use the climbing and scrambling forecast.

Did this match your experience?Tell us about the rock surface and wind to help improve this beta forecast.Give feedback

A broad surface report is enough; you do not need to identify a particular route.

Overnight · Aurora, stars & meteorsAfter darkBetaClearer spells are possible, but other forecasts keep much of the sky obscured by cloud. View forecastClose forecast

After dark: aurora and stargazing

Night beginning 2026-09-26. All times are UK local time.

Aurora outlook

No significant activity expected.

A broad activity outlook, not a forecast of a visible display. Cloud and activity can change before the night.

Stargazing

Poor sky conditions during the best available spell: 26 Sep, 21:00 BST to 22:00 BST.

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

A bright Moon remains above the horizon through full darkness, washing out fainter stars and meteors.

Sky conditions through the night
Fully dark periods. Conditions can change between forecast hours.
TimeViewing conditions
26 Sep, 21:00 BST to 22:00 BSTPoor sky conditions

Clearer spells are possible, but other forecasts keep much of the sky obscured by cloud.

Forecast models disagree.

26 Sep, 22:00 BST to 23:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Rain may interrupt viewing. Reduced visibility may obscure faint objects. Moonlight washes out fainter stars.

26 Sep, 23:00 BST to 27 Sep, 00:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Rain may interrupt viewing. Reduced visibility may obscure faint objects. Moonlight washes out fainter stars.

27 Sep, 00:00 BST to 01:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Rain may interrupt viewing. Moonlight washes out fainter stars.

27 Sep, 01:00 BST to 02:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

27 Sep, 02:00 BST to 03:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

27 Sep, 03:00 BST to 04:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

27 Sep, 04:00 BST to 05:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

27 Sep, 05:00 BST to 05:20 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

Moon, darkness and meteor showers

Near-full moon, about 100% illuminated.

Moonrise around 26 Sep, 18:45 BST.

Full darkness: 26 Sep, 21:00 BST to 27 Sep, 05:20 BST.

Moon times assume an open horizon. Hills can hide the Moon sooner. Moon-free does not mean cloud-free.

Southern Taurids are active on this night. Activity may be much lower away from the peak.

  • Draconids: peak around 9 October 2026.
  • Southern Taurids: peak around 10 October 2026.
  • Orionids: peak around 21 October 2026.
  • Northern Taurids: peak around 12 November 2026.
  • Leonids: peak around 18 November 2026.
  • Geminids: peak around 14 December 2026.
  • Ursids: peak around 22 December 2026.

Dates from the Royal Observatory Greenwich. Activity dates do not guarantee visible meteors. Look across a broad, dark sky, not only north.

Darkness of the surroundings

Estimated darkness rank 793 of 980 assessed peaks (1 is darkest), based on surrounding artificial light in 2021. This is not a measurement of tonight’s sky.

2021 artificial-light baseline, not measured sky brightness or a Bortle class. Changes to lighting, blue-rich LEDs, terrain screening, atmospheric scattering and cloud-reflected light are not resolved. Similar ranks are not meaningfully distinct. Darkness is not a recommendation to climb a summit at night.

VIIRS nighttime lights: Earth Observation Group, Payne Institute for Public Policy, Colorado School of Mines. Reprocessed by OpenGeoHub/OpenLandMap. Cropped and ranked by Mountain Weather.

Sky-weather grades exclude light pollution, terrain and thin haze. They are not mountain safety ratings. Check the mountain and camping forecast separately. Accessible lower viewpoints may be a better choice than summits.

Recommended kit for this dayWeather-aware packing prompts, plus your core hillwalking kitView kit

For a day hillwalk, not a complete route-specific checklist. Carry navigation and backup you can use, warm and waterproof layers, suitable footwear, food and water, a headtorch, emergency shelter, first aid and a way to call for help. Snow, ice, technical terrain and overnight trips need additional equipment and skills.

Does the weather shape your plans?Optional hill-user research. One answer helps; further questions are up to you.Take part

Help the Mountain Decisions Project understand how forecasts influence hill days, including when plans stay the same. Findings will be shared publicly as summaries, not individual responses.

This is about Broadway Hill on Saturday 26 September 2026. It asks about intentions, not whether you actually went out. No name or account is needed.

Open the questions to take part.

About the research and your privacy · Already been out? Share that experience instead

Confidence: Unavailable
Overall hill weather80/100Good
Wind15-25 mph southeasterly Gusts25-35 mph Feels like4 to 8°C PrecipitationUp to around 2 mm Cloud-free summit estimate95% Freezing levelAbove summit DaylightSunrise 07:12 · Sunset 19:06 · 11.9 hours daylight

The day on the hill

Mostly dry with limited summit cloud on Broadway Hill: summit wind broadly 15-25 mph, with gusts 25-35 mph at times (a fresh breeze).

Cloud & views

Cloud base around 1400–1700 m in the morning, lowering to 500–800 m around midday and 400–700 m by late afternoon. The summit is likely to stay mostly clear.

Cloud-height uncertainty could put the summit in or out of cloud. Clear spells may be difficult to time.

Cloud may hang lower on southeastern slopes and lift somewhat on the northwestern side, but local terrain can differ. Drizzle is forecast at times.

The forecast total is up to around 2 mm, but local amounts will vary.

Forecast confidence

Overall confidence is unavailable: insufficient comparable wind, rain guidance.

Sunshine context Model-grid estimate, not summit sunshine

The surrounding model grid indicates 11 h of sunshine. This is not a forecast of time in sunshine on the summit. Use the cloud and views outlook above for the conditions on this mountain.

Early
2 h
Midday
4 h
Later
3 h
Morning · 08:00–12:00 Good Summit winds around 15-25 mph. Gusts around 20-30 mph are possible on exposed ground. Rain is forecast during this period.
80/100
Afternoon · 12:00–17:00 Good Summit winds around 15-25 mph. Gusts around 25-35 mph are possible on exposed ground.
79/100

Compare an early start with later conditions. The main forecast above covers the day in more detail.

Daytime · exposed rockClimbing & scramblingBetaWet rock is likely. Mixed53/100 View detailsHide details
Generic exposed-rock guidance

Full climbing & scrambling outlook

Conditions for exposed scrambling look mixed (53/100). Rain during the climbing period is likely to leave rock wet and more slippery. The mapped summit rock is Mudstone (Portfield Formation And Haverford Mudstone Formation (Undifferentiated)). Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp.

Rock surfaceWet rock likelyPeak gust28 mphRain0.5 mm
Main concernwet rock likely
Mapped summit rock Mudstone Portfield Formation And Haverford Mudstone Formation (Undifferentiated)
Origin
Sedimentary
Rock family
Slate or mudstone
Mapping
BGS Geology 50K · 1:50,000
Rock-response profile
Moderate confidence
View the summit BGS record

Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp. Summit-point bedrock mapping; the actual route may cross different rock, superficial deposits, polish, lichen or seepage.

Generic exposed scrambling terrain; mapped summit-point bedrock is included where available, but route grade, exact rock, polish, drainage and escape options remain unresolved. Contains British Geological Survey materials © UKRI 2026. How to use the climbing and scrambling forecast.

Did this match your experience?Tell us about the rock surface and wind to help improve this beta forecast.Give feedback

A broad surface report is enough; you do not need to identify a particular route.

Overnight · Aurora, stars & meteorsAfter darkBetaCloud is likely to obscure much of the sky. Moonlight washes out fainter stars. View forecastClose forecast

After dark: aurora and stargazing

Night beginning 2026-09-27. All times are UK local time.

Aurora outlook

No significant activity expected.

A broad activity outlook, not a forecast of a visible display. Cloud and activity can change before the night.

Stargazing

Poor sky conditions during the best available spell: 27 Sep, 22:00 BST to 23:00 BST.

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

A bright Moon remains above the horizon through full darkness, washing out fainter stars and meteors.

Sky conditions through the night
Fully dark periods. Conditions can change between forecast hours.
TimeViewing conditions
27 Sep, 21:00 BST to 22:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Reduced visibility may obscure faint objects. Moonlight washes out fainter stars.

27 Sep, 22:00 BST to 23:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

27 Sep, 23:00 BST to 28 Sep, 00:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

28 Sep, 00:00 BST to 01:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

28 Sep, 01:00 BST to 02:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

Limited model coverage.

28 Sep, 02:00 BST to 03:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

Limited model coverage.

28 Sep, 03:00 BST to 04:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

Limited model coverage.

28 Sep, 04:00 BST to 05:00 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

Limited model coverage.

28 Sep, 05:00 BST to 05:20 BSTPoor sky conditions

Cloud is likely to obscure much of the sky. Moonlight washes out fainter stars.

Limited model coverage.

Moon, darkness and meteor showers

Near-full moon, about 98% illuminated.

Moonrise around 27 Sep, 19:00 BST.

Full darkness: 27 Sep, 21:00 BST to 28 Sep, 05:20 BST.

Moon times assume an open horizon. Hills can hide the Moon sooner. Moon-free does not mean cloud-free.

Southern Taurids are active on this night. Activity may be much lower away from the peak.

  • Draconids: peak around 9 October 2026.
  • Southern Taurids: peak around 10 October 2026.
  • Orionids: peak around 21 October 2026.
  • Northern Taurids: peak around 12 November 2026.
  • Leonids: peak around 18 November 2026.
  • Geminids: peak around 14 December 2026.
  • Ursids: peak around 22 December 2026.

Dates from the Royal Observatory Greenwich. Activity dates do not guarantee visible meteors. Look across a broad, dark sky, not only north.

Darkness of the surroundings

Estimated darkness rank 793 of 980 assessed peaks (1 is darkest), based on surrounding artificial light in 2021. This is not a measurement of tonight’s sky.

2021 artificial-light baseline, not measured sky brightness or a Bortle class. Changes to lighting, blue-rich LEDs, terrain screening, atmospheric scattering and cloud-reflected light are not resolved. Similar ranks are not meaningfully distinct. Darkness is not a recommendation to climb a summit at night.

VIIRS nighttime lights: Earth Observation Group, Payne Institute for Public Policy, Colorado School of Mines. Reprocessed by OpenGeoHub/OpenLandMap. Cropped and ranked by Mountain Weather.

Sky-weather grades exclude light pollution, terrain and thin haze. They are not mountain safety ratings. Check the mountain and camping forecast separately. Accessible lower viewpoints may be a better choice than summits.

Recommended kit for this dayWeather-aware packing prompts, plus your core hillwalking kitView kit

For a day hillwalk, not a complete route-specific checklist. Carry navigation and backup you can use, warm and waterproof layers, suitable footwear, food and water, a headtorch, emergency shelter, first aid and a way to call for help. Snow, ice, technical terrain and overnight trips need additional equipment and skills.

Does the weather shape your plans?Optional hill-user research. One answer helps; further questions are up to you.Take part

Help the Mountain Decisions Project understand how forecasts influence hill days, including when plans stay the same. Findings will be shared publicly as summaries, not individual responses.

This is about Broadway Hill on Sunday 27 September 2026. It asks about intentions, not whether you actually went out. No name or account is needed.

Open the questions to take part.

About the research and your privacy · Already been out? Share that experience instead

Confidence: Unavailable
Overall hill weather96/100Excellent
Wind10-20 mph southwesterly Gusts15-25 mph Feels like8 to 12°C PrecipitationLittle or none Cloud-free summit estimate95% Freezing levelAbove summit DaylightSunrise 07:14 · Sunset 19:04 · 11.8 hours daylight

The day on the hill

Little rain and limited summit cloud on Broadway Hill: summit wind broadly 10-20 mph, with gusts 15-25 mph at times (a moderate breeze).

Cloud & views

Cloud base around 400–700 m in the morning, then around 800–1100 m around midday and 500–800 m by late afternoon. The summit is likely to stay mostly clear.

Cloud-height uncertainty could put the summit in or out of cloud. Clear spells may be difficult to time.

Rain & temperature

Little or no rain is forecast. Forecast models disagree markedly on summit wind strength.

Check again nearer the time.

Forecast confidence

Overall confidence is unavailable: insufficient comparable wind, rain guidance.

Cloud-free timing: Around 85% early, improving to around 95% later.

Sunshine context Model-grid estimate, not summit sunshine

The surrounding model grid indicates 11 h of sunshine. This is not a forecast of time in sunshine on the summit. Use the cloud and views outlook above for the conditions on this mountain.

Early
2 h
Midday
4 h
Later
3 h
Morning · 08:00–12:00 Excellent Summit winds around 5-15 mph. Gusts around 10-20 mph are possible on exposed ground.
94/100
Afternoon · 12:00–17:00 Excellent Summit winds around 10-20 mph. Gusts around 15-25 mph are possible on exposed ground.
97/100

Compare an early start with later conditions. The main forecast above covers the day in more detail.

Daytime · exposed rockClimbing & scramblingBetaRock is likely to be mostly dry, but check for local dampness. Excellent95/100 View detailsHide details
Generic exposed-rock guidance

Full climbing & scrambling outlook

Conditions for exposed scrambling look excellent (95/100). Rock is likely to be mostly dry, though seepage and shaded holds are not resolved. The mapped summit rock is Mudstone (Portfield Formation And Haverford Mudstone Formation (Undifferentiated)). Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp.

Rock surfaceProbably dryPeak gust21 mphRain0.0 mm
Mapped summit rock Mudstone Portfield Formation And Haverford Mudstone Formation (Undifferentiated)
Origin
Sedimentary
Rock family
Slate or mudstone
Mapping
BGS Geology 50K · 1:50,000
Rock-response profile
Moderate confidence
View the summit BGS record

Often positive when dry, but smooth, polished or slabby sections can become markedly more slippery when damp. Summit-point bedrock mapping; the actual route may cross different rock, superficial deposits, polish, lichen or seepage.

Generic exposed scrambling terrain; mapped summit-point bedrock is included where available, but route grade, exact rock, polish, drainage and escape options remain unresolved. Contains British Geological Survey materials © UKRI 2026. How to use the climbing and scrambling forecast.

Did this match your experience?Tell us about the rock surface and wind to help improve this beta forecast.Give feedback

A broad surface report is enough; you do not need to identify a particular route.

Overnight · Aurora, stars & meteorsAfter darkBetaNight-sky guidance is unavailable for this night. View forecastClose forecast

After dark: aurora and stargazing

Night-sky guidance is unavailable for this night. This does not mean clear skies or no aurora.

Recommended kit for this dayWeather-aware packing prompts, plus your core hillwalking kitView kit

For a day hillwalk, not a complete route-specific checklist. Carry navigation and backup you can use, warm and waterproof layers, suitable footwear, food and water, a headtorch, emergency shelter, first aid and a way to call for help. Snow, ice, technical terrain and overnight trips need additional equipment and skills.

Does the weather shape your plans?Optional hill-user research. One answer helps; further questions are up to you.Take part

Help the Mountain Decisions Project understand how forecasts influence hill days, including when plans stay the same. Findings will be shared publicly as summaries, not individual responses.

This is about Broadway Hill on Monday 28 September 2026. It asks about intentions, not whether you actually went out. No name or account is needed.

Open the questions to take part.

About the research and your privacy · Already been out? Share that experience instead

Weather data: Open-Meteo (CC BY 4.0). Adapted by Mountain Weather.

Forecast run: 2026-09-21

A forecast is part of the decision.

Mountain weather can differ sharply from conditions in the valley. Check official warnings, carry appropriate navigation and clothing, and be ready to change the plan. Read how Mountain Weather forecasts are produced and where their limits lie.