Eryri (Snowdonia)
A fine day in Eryri (Snowdonia): dry, with light winds and clear tops for most of the day.
Sunshine and sky
Cloud becoming more extensive. Cloud cover is likely to increase as sunshine becomes less frequent.
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.
High-ground wind (900 m)
At around 900 m, expect an easterly wind of 10–20 mph, gusting 20–30 mph.
Walking impact
Noticeable on exposed ground, but unlikely to impede most walking.
Rain and showers
It should stay dry.
Cloud-free summits
Clear-summit estimate: about 90% early, about 90% around midday and about 60% later.
Cloud and visibility
The tops should stay mostly clear of cloud. Good spells of sunshine are likely. The air should be clear, so expect far-reaching views as long as the tops stay clear.
Temperature and wind chill
At around 900 m it will be 2 to 6°C, feeling like -2 to 2°C in the wind. It turns milder through the day. Take a hat, gloves, a windproof and a spare warm layer.
Freezing level
The freezing level is close to summit height.
Daylight
Sunrise 07:49, Sunset 18:12, about 10.4 hours daylight.
Overnight · 17:00–08:00Wild campingBetaAcross these hills, a reasonable night to camp, with a well-chosen pitch: gusts of about 25 mph. 64Mixed · 600 m View detailsHide details
Full regional overnight outlook
Across these hills, a reasonable night to camp, with a well-chosen pitch. Light winds on open ground, gusting no more than about 25 mph. A little rain is forecast overnight. Up around 900 m you'd likely be in cloud for part of the night: damp, and hard to find your way if you need to move. The air is damp at every height we checked (300-900 m), so expect heavy condensation. Leave the vents open. Overnight lows of about 5°C at 900 m.
Moon overnight
Waxing gibbous moon
- Illuminated disc
- 63%
- Moonrise
- Outside this window
- Moonset
- 00:28 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: 53.069, -4.076. Times vary across the area.
Elevation reference (open ground)
- Wind / gust
- 10 mph / 17 mph
- Coldest
- 6.4°C
- In cloud
- 0% of modelled night
- Condensation
- High
- Wind / gust
- 11 mph / 20 mph
- Coldest
- 6.4°C
- In cloud
- 0% of modelled night
- Condensation
- High
- Wind / gust
- 14 mph / 24 mph
- Coldest
- 5.1°C
- In cloud
- 67% of modelled night
- Condensation
- High
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 & scramblingBetaCold rock may reduce comfort and dexterity. 86Excellent · Good View detailsHide details
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 good (86/100). Rock is likely to be mostly dry, though local seepage and shaded holds remain unresolved. Mapped summit-point geology across the representative hills includes volcanic rock and slate or mudstone. Rock can therefore respond differently to moisture between crags and routes.
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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Weather data: Open-Meteo (CC BY 4.0). Adapted by Mountain Weather.
Updated 14 October 2026 at 15:27 UTC. See typical weekly and monthly conditions for Eryri (Snowdonia).