The region: Aletsch Arena
Aletsch Arena (Valais): the weather above is computed at the centre of the region (2000 m). Below you will find the forecasts for the 12 municipalities, 6 ski resorts, 0 lakes and 3 passes or summits within 10 km — the terrain makes the weather vary a lot from one valley to the next: use the page of the exact place.
Climate of Aletsch Arena: 1991–2020 normals
In Aletsch Arena (2000 m), the mean annual temperature is 2.7 °C. The warmest month is August (10.6 °C on average) and the coldest February (−4.0 °C). About 1156 mm of precipitation falls per year, peaking in December (133 mm) with a minimum in September (60 mm). The mean monthly maximum reaches 20.9 °C and the absolute minimum −14.9 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) |
|---|---|---|---|---|
| Jan | −3.8 °C | 6.5 °C | −14.9 °C | 113 |
| Feb | −4.0 °C | 6.6 °C | −14.3 °C | 76 |
| Mar | −2.5 °C | 7.0 °C | −13.7 °C | 91 |
| Apr | 0.4 °C | 9.1 °C | −9.9 °C | 65 |
| May | 4.0 °C | 13.3 °C | −5.3 °C | 113 |
| Jun | 8.5 °C | 19.6 °C | −0.6 °C | 92 |
| Jul | 10.5 °C | 20.9 °C | 1.4 °C | 106 |
| Aug | 10.6 °C | 20.7 °C | 1.2 °C | 116 |
| Sep | 7.1 °C | 17.2 °C | −2.9 °C | 60 |
| Oct | 4.5 °C | 14.1 °C | −5.9 °C | 90 |
| Nov | −0.4 °C | 10.1 °C | −11.3 °C | 102 |
| Dec | −2.7 °C | 7.1 °C | −13.6 °C | 133 |
| Year | 2.7 °C | 20.9 °C | −14.9 °C | 1156 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Eggishorn (4 km, 2892 m), Jungfraujoch (17 km, 3571 m), Blatten, Lötschental (17 km, 1548 m), adjusted to the elevation of Aletsch Arena (2000 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Municipalities in the region
- Bettmeralp 3 km · 2292 m
- Lax 3 km · 1290 m
- Mörel-Filet 5 km · 855 m
- Bitsch 5 km · 1045 m
- Fiesch 5 km · 2030 m
- Bister 6 km · 1795 m
- Riederalp 6 km · 2049 m
- Grengiols 9 km · 2316 m
- Termen 9 km · 1686 m
- Naters 9 km · 986 m
- Bellwald 9 km · 2059 m
- Ried-Brig 10 km · 1578 m
⛷️ Ski resorts
- Riederalp 1925–2869 m
- Bettmeralp 1950–2869 m
- Fiesch-Eggishorn 1050–2869 m
- Belalp 2094–3100 m
- Bellwald 1560–2560 m
- Rosswald 1800–2500 m
⛰️ Passes and summits
- Bettmerhorn 2872 m
- Eggishorn 2927 m
- Aletsch Glacier 2300 m
Frequently asked questions about the weather: Aletsch Arena
What is the weather like in Aletsch Arena today?
The weather at the top of the page gives conditions at the centre of the region (2000 m); for a specific town pick it in the “Municipalities in the region” list — each page has its own hourly and 15-day forecast.
What is the climate of Aletsch Arena?
At the centre of the region (2000 m) the mean annual temperature is 2.7 °C with 1156 mm of precipitation a year; the warmest month is August (10.6 °C) and the coldest February (−4.0 °C). Valleys and summits differ markedly.
What is the warmest month in Aletsch Arena?
The warmest month in Aletsch Arena is August, averaging 10.6 °C (1991–2020 normal). The coldest is February at −4.0 °C.
How much does it rain in Aletsch Arena per year?
Aletsch Arena receives about 1156 mm of precipitation a year. The wettest month is December (133 mm), the driest September (60 mm).
When is the best time to visit Aletsch Arena?
For warmth and sunshine: August (10.6 °C on average, — h of sun). The coldest month is February (−4.0 °C). Check the 15-day forecast above for your dates.