Eryri (Snowdonia)
Saturday 29 August 2026 · Yr Wyddfa, the Glyderau and the Carneddau
Why: Clearer summits are favoured, but some forecast models are much cloudier.
Showers or rain at times. A noticeable easterly breeze, with cloud coming and going on the tops.
High-ground wind (900 m)
Easterly 10-15 mph at 900 m. Gusts reaching around 20 mph at 900 m, with locally higher values possible on the most exposed tops. Little overall change through the day.
Walking impact
Noticeable on exposed ground, but unlikely to impede most walking.
Ground conditions
The ground is likely to be wet after recent rain.
Rain and showers
Showers or spells of rain at times. The heaviest rain is expected around the middle of the day.
Cloud-free summits
Around 35%. Around 45% early, falling to around 35% later.
Cloud and visibility
Cloud bases mostly around 400-1100 m. Bases are likely to lower later in the day. Cloud is likely to come and go on the higher summits; breaks may be useful but not dependable.
Temperature and wind chill
Around 11°C at 900 m, feeling like 8°C in the wind.
Freezing level
Above the summits.
Daylight
Sunrise 06:19 — Sunset 20:13 — about 13.9 hours daylight.
Overnight · 6 p.m.–9 a.m.Wild campingBetaThunder risk is around 44% in parts of the area; avoid exposed pitches if storms develop. 41/100Poor · 600 m View detailsHide details
Full regional overnight outlook
Across representative hills, open-hillside camping looks poor around 600 m (41/100). A wet night is likely, with around 9 mm indicated between pitching and packing up.
Elevation reference (open ground)
- Wind / gust
- 7 / 16 mph
- Coldest
- 12.3°C
- In cloud
- Unlikely
- Condensation
- High
- Wind / gust
- 9 / 19 mph
- Coldest
- 11.6°C
- In cloud
- Unlikely
- Condensation
- High
- Wind / gust
- 10 / 23 mph
- Coldest
- 9.8°C
- In cloud
- Unlikely
- Condensation
- High
Open-hillside guidance across representative hills. Local shelter, ridges, tent design and the exact pitch can change conditions substantially. How to use the wild-camping forecast.
Daytime · exposed rockClimbing & scramblingBetaWet rock is likely on some representative hills. 52/100Mixed · Mixed View detailsHide details
Full regional climbing & scrambling outlook
Conditions for exposed scrambling across the area look mixed (52/100). Rain is likely to leave rock wet; polished slabs, vegetation and drainage lines may be notably worse. Mapped summit-point geology across the representative hills includes volcanic rock and slate or mudstone; moisture response can therefore vary substantially 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.
Updated 29 August 2026 at 04:40 UTC. See typical weekly and monthly conditions for Eryri (Snowdonia).