Lochaber mountain weather forecast.

Ben Nevis, the Mamores and surrounding ranges. Height-aware guidance for wind, cloud, rain and temperature.

Mountain Weather brief

Lochaber

Monday 19 October 2026 · Ben Nevis, the Mamores and surrounding ranges

Confidence: Medium Why?

Uncertainty over sky cloud cover and sunshine.

What matters most

A good day in Lochaber: dry and breezy, with clear tops for most of the day.

High-ground wind · 900 m20-30 mph southerly Gusts · 900 m25-35 mph Cloud base700-1100 m Feels like · 900 m-4 to 0°C
Regional median

Sunshine and sky

Cloud becoming more extensive. Cloud cover is likely to increase as sunshine becomes less frequent.

Modelled sunshine9 h90% of daylight
Early1 h sunshine
Midday4 h sunshine
Later2 h sunshine

These are direct modelled sunshine hours during daylight, not the probability of sunshine. Cloud cover and summit cloud are assessed separately in the forecast above. The regional median prevents one unusually bright or dull summit cell defining the whole area.

Overnight forecast: 17:00–08:00 (UK local time), in Wild camping below.

Morning · 08:00–12:00GoodSummit winds around 10-25 mph. Gusts around 20-30 mph are possible on exposed ground.
80
Afternoon · 12:00–17:00GoodSummit winds around 15-25 mph. Gusts around 25-35 mph are possible on exposed ground. Summit cloud becomes more persistent later.
70

Conservative regional grades across representative summits, so one sheltered hill does not overstate the wider area.

01

High-ground wind (900 m)

At around 900 m, expect a southerly wind of 20–30 mph, gusting 25–35 mph. Gusts like that will be noticeable on ridges and open tops, and you will chill quickly when you stop.

02

Walking impact

Gusts of 25–35 mph will be noticeable on ridges and open tops, and you will chill quickly when you stop.

03

Rain and showers

It should stay dry.

04

Cloud-free summits

Clear-summit estimate: about 90% early, about 85% around midday and about 65% later.

05

Cloud and visibility

The tops are likely to drift in and out of cloud, with the best chance of clear tops early in the morning. The cloud base could be as low as 900–1200 m mid-afternoon. Good spells of sunshine are likely.

06

Temperature and wind chill

At around 900 m it will be 2 to 6°C, feeling like -4 to 0°C in the wind. It turns milder through the day. Take a hat, gloves, a windproof and a spare warm layer.

07

Freezing level

The freezing level is around 1100–1400 m, so it will be below freezing on the tops.

08

Daylight

Sunrise 07:59, Sunset 18:07, about 10.1 hours daylight.

Overnight · 17:00–08:00Wild campingBetaAcross these hills, a mixed night to camp, mainly because of the wind: gusts of about 35 mph. 59Mixed · 600 m View detailsHide details
Regional night beginning Monday 19 October 2026

Full regional overnight outlook

Across these hills, a mixed night to camp, mainly because of the wind. Gusts reach about 35 mph on open ground, which makes for a noisy, testing night even in a good tent. Look for shelter from the south. It should stay dry. Overnight lows of about 4°C at 900 m.

Overnight rain0.0 mmOpen ground · 600 m20 mph · gusts 30 mphMorning pack-upDampness possible

Moon overnight

Waxing gibbous moon

Illuminated disc
63%
Moonrise
Outside this window
Moonset
00:13 next morning BST

Cloud and terrain vary across the area. Illumination describes the sunlit part of the Moon, not brightness at your pitch.

Overnight window: 19 Oct, 17:00 BST to 20 Oct, 08:00 BST. Approximate open-horizon times; hills can hide the Moon. Still take a headtorch.

Representative location: 56.797, -5.004. Times vary across the area.

300 m76 · reasonable
Wind / gust
17 mph / 26 mph
Coldest
5.9°C
In cloud
0% of modelled night
Condensation
Low
600 m59 · mixed
Wind / gust
20 mph / 30 mph
Coldest
5.9°C
In cloud
0% of modelled night
Condensation
Low
900 m39 · poor
Wind / gust
23 mph / 35 mph
Coldest
4.2°C
In cloud
21% of modelled night
Condensation
Moderate

Open-hillside guidance across representative hills. Local shelter, ridges, tent design and the exact pitch can change conditions substantially. Read about sleeping-bag comfort ratings, pitching in strong winds or using the wild-camping forecast.

Daytime · exposed rockClimbing & scramblingBetaSnow is likely to be lying on some high ground. Scrambling may require winter mountaineering skills and equipment. Gusts near 30 mph may affect balance on exposed rock. 67Mixed · Fair View detailsHide details
Regional rock conditions · sampled mountain terrain

Regional climbing & scrambling outlook

A broad guide to dampness and exposed rock across the area, not a forecast for every crag. Lower, sheltered crags and individual rock types may behave differently.

Conditions for exposed scrambling across the area look fair (67/100). Rock is likely to be mostly dry, though local seepage and shaded holds remain unresolved. Gusts may reach about 30 mph on exposed ground, making crosswinds an important route consideration. Mapped summit-point geology across the representative hills includes psammite, pelite or semipelite, granite, gneiss or gabbro and volcanic rock. Rock can therefore respond differently to moisture between crags and routes.

Rock surfaceProbably dryExposed gust31 mphRain0.0 mm
Mapped rock across sampled summits4 broad familiesSummit samples, not a survey of every crag
psammite, pelite or semipelite 38% 3 representative summitsDry quartz-rich bands can be grippy, while mica-rich or foliated sections, lichen and vegetation may become slippery when wet.granite, gneiss or gabbro 25% 2 representative summitsGenerally grippy when dry and often still positive when damp, but wet slabs, lichen, polish and drainage lines can remain slippery.volcanic rock 25% 2 representative summitsOften grippy when dry, but volcanic rocks vary widely; wet lichen, smooth holds and local seepage can still make them slippery.quartzite 12% 1 representative summitUsually hard and grippy when dry and often reasonably positive when damp, although wet lichen and smooth slabs can still be slippery.

Representative summit-point samples across the region; individual crags and routes may differ.

Generic exposed hands-on-rock terrain across representative summits; mapped summit-point geology is a broad regional sample, not a named-route survey. Contains British Geological Survey materials © UKRI 2026. How to use the climbing and scrambling forecast.

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.

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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 Lochaber on Monday 19 October 2026. It asks about intentions, not whether you actually went out. No name or account is needed.

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

Updated 15 October 2026 at 15:29 UTC. See typical weekly and monthly conditions for Lochaber.

More context for your hill day

Check the approach as well as the tops

Compare midge conditions by day and height, or look for a possible cloud inversion. For Snowdon and Tryfan, camera-derived cloud-base observations add a view of conditions already seen on the slopes.