Mountain weather

Forecasts for the UK’s most popular mountains and national parks. Summit conditions can differ wildly from the valley — expect the top to be around 6–10°C colder, with far stronger winds.

≤ 0°1–10°11–15°16–20°21°+
Snowdon (Yr Wyddfa)
Eryri (Snowdonia)
3°
1085 m · Summit temperature (est.) · Valley temperature 10°
Ben Nevis
Highland
-5°
1345 m · Summit temperature (est.) · Valley temperature 4°
Scafell Pike
Lake District
2°
978 m · Summit temperature (est.) · Valley temperature 9°
Helvellyn
Lake District
0°
950 m · Summit temperature (est.) · Valley temperature 6°
Pen y Fan
Bannau Brycheiniog (Brecon Beacons)
1°
886 m · Summit temperature (est.) · Valley temperature 7°
Catbells
Lake District
3°
451 m · Summit temperature (est.) · Valley temperature 6°
Mam Tor
Peak District
5°
517 m · Summit temperature (est.) · Valley temperature 8°
Ben Lomond
Loch Lomond & The Trossachs
1°
974 m · Summit temperature (est.) · Valley temperature 7°
Tryfan
Eryri (Snowdonia)
4°
917 m · Summit temperature (est.) · Valley temperature 10°
Slieve Donard
Mourne Mountains
5°
850 m · Summit temperature (est.) · Valley temperature 11°
Sources
Summit conditions are serious business
Summit temperatures are estimated from the valley forecast using the standard lapse rate (−6.5°C per 1,000 m); wind chill on an exposed ridge will feel far colder, and wind speeds are typically two to three times stronger than in the glen. Always check an official mountain forecast before heading up, carry a map and compass, and turn back if the cloud comes down.
Forecasts from the UK Met Office UKV model, global weather models and official UK environmental data · Met Office UKV model · Environment Agency · Copernicus CAMS · NOAA
Updated: 04:59