The region: Central Valais
Central Valais (Valais): the weather above is computed at the centre of the region (500 m). Below you will find the forecasts for the 24 municipalities, 6 ski resorts, 0 lakes and 0 passes or summits within 15 km — the terrain makes the weather vary a lot from one valley to the next: use the page of the exact place.
Climate of Central Valais: 1991–2020 normals
In Central Valais (500 m), the mean annual temperature is 10.7 °C. The warmest month is July (20.5 °C on average) and the coldest January (0.7 °C). About 591 mm of precipitation falls per year, peaking in December (69 mm) with a minimum in April (34 mm). The sun shines for about 2137 hours a year, mostly in July (269 h). On average there are 90 frost days and 21 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 33.6 °C and the absolute minimum −8.9 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Sunshine (h) | Frost days | Summer days |
|---|---|---|---|---|---|---|---|
| Jan | 0.7 °C | 11.5 °C | −8.9 °C | 53 | 90 | 24 | 0 |
| Feb | 2.4 °C | 15.2 °C | −7.5 °C | 42 | 130 | 20 | 0 |
| Mar | 7.1 °C | 20.8 °C | −3.7 °C | 38 | 188 | 9 | 0 |
| Apr | 11.1 °C | 24.7 °C | −0.3 °C | 34 | 209 | 1 | 2 |
| May | 15.2 °C | 29.0 °C | 3.7 °C | 53 | 225 | 0 | 8 |
| Jun | 18.9 °C | 32.4 °C | 7.3 °C | 49 | 251 | 0 | 17 |
| Jul | 20.5 °C | 33.6 °C | 9.6 °C | 62 | 269 | 0 | 22 |
| Aug | 19.8 °C | 33.0 °C | 8.7 °C | 60 | 248 | 0 | 20 |
| Sep | 15.7 °C | 27.7 °C | 5.2 °C | 38 | 208 | 0 | 7 |
| Oct | 10.8 °C | 23.2 °C | 0.3 °C | 43 | 159 | 2 | 0 |
| Nov | 5.2 °C | 18.1 °C | −4.8 °C | 51 | 94 | 11 | 0 |
| Dec | 1.2 °C | 12.0 °C | −8.4 °C | 69 | 66 | 23 | 0 |
| Year | 10.7 °C | 33.6 °C | −8.9 °C | 591 | 2137 | 90 | 77 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Sion (3 km, 482 m), Montana (11 km, 1423 m), Les Diablerets (16 km, 2964 m), adjusted to the elevation of Central Valais (500 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Municipalities in the region
- Sion 0 km · 509 m
- Savièse 2 km · 2136 m
- Grimisuat 2 km · 858 m
- Veysonnaz 3 km · 1254 m
- Vex 4 km · 1053 m
- Nendaz 5 km · 1146 m
- Ayent 6 km · 531 m
- Saint-Léonard 6 km · 509 m
- Mont-Noble 6 km · 1478 m
- Vétroz 7 km · 478 m
- Conthey 8 km · 491 m
- Hérémence 8 km · 1594 m
- Lens 9 km · 1139 m
- Arbaz 9 km · 1685 m
- Saint-Martin (VS) 9 km · 1341 m
- Ardon 9 km · 1644 m
- Grône 11 km · 1831 m
- Chamoson 12 km · 639 m
- Isérables 12 km · 1330 m
- Chalais 13 km · 610 m
- Riddes 13 km · 468 m
- Crans-Montana 13 km · 1472 m
- Chippis 15 km · 802 m
- Icogne 15 km · 2001 m
⛷️ Ski resorts
- Veysonnaz 1300–2460 m
- Thyon 2000 2000–2460 m
- Nendaz 1365–3330 m
- Anzère 1500–2420 m
- Vercorin 1320–2370 m
- La Tzoumaz 1500–2200 m
📍 Places to visit
Frequently asked questions about the weather: Central Valais
What is the weather like in Central Valais today?
The weather at the top of the page gives conditions at the centre of the region (500 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 Central Valais?
At the centre of the region (500 m) the mean annual temperature is 10.7 °C with 591 mm of precipitation a year; the warmest month is July (20.5 °C) and the coldest January (0.7 °C). Valleys and summits differ markedly.
What is the warmest month in Central Valais?
The warmest month in Central Valais is July, averaging 20.5 °C (1991–2020 normal). The coldest is January at 0.7 °C.
How much does it rain in Central Valais per year?
Central Valais receives about 591 mm of precipitation a year. The wettest month is December (69 mm), the driest April (34 mm).
When is the best time to visit Central Valais?
For warmth and sunshine: July (20.5 °C on average, 269 h of sun). The coldest month is January (0.7 °C). Check the 15-day forecast above for your dates.