Yr Wyddfa (Snowdon) Weather
Summit forecast at 1085 m · British Isles · GB · SAC T2
Summit window
Summit window today 14:00–16:41
Summit window tomorrow 08:00–16:39
Mountain weather changes fast. This is a forecast, not a safety guarantee — check official mountain forecasts and turn back when in doubt.
7-day summit forecast
| Day | Low / High | Summit wind | Rain | Freezing level | Storm risk |
|---|---|---|---|---|---|
| ☀️ Today | 1° / 3° | 20 km/h | 11% | 1440–1800 m | low |
| 🌤 Wed, Nov 4 | 1° / 4° | 28 km/h | 11% | 1350–1830 m | low |
| ⛅ Thu, Nov 5 | 0° / 3° | 27 km/h | 1% | 1310–1720 m | low |
| ⛅ Fri, Nov 6 | 0° / 2° | 12 km/h | 19% | 1240–1560 m | low |
| ⛅ Sat, Nov 7 | 0° / 3° | 6 km/h | 26% | 1220–1580 m | low |
| 🌤 Sun, Nov 8 | -2° / 3° | 6 km/h | 25% | 940–1450 m | low |
| ⛅ Mon, Nov 9 | -2° / 2° | 9 km/h | 12% | 960–1480 m | low |
Temperatures at the summit (1085 m), blended from 9 weather models (ECMWF IFS, NOAA GFS, DWD ICON, UK Met Office, Canada GEM, JMA (Japan), Météo-France, KNMI HARMONIE, DMI HARMONIE).
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Hour-by-hour summit weather for Yr Wyddfa (Snowdon), alerts the evening before and the morning of a planned hike, marked routes with the best start time — free, no account.
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