About Chamoson
Chamoson is a Swiss municipality located in the canton of Valais (VS), at 46.178° latitude and 7.230° longitude. The municipality is part of the Valais Alps, dry continental climate, among the sunniest in Switzerland. Also known as Chamoson, Chamoson benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Chamoson
The climate in Chamoson is characteristic of the Valais Alps, dry continental climate, among the sunniest in Switzerland. Temperatures, precipitation and wind conditions vary throughout the year with local features linked to altitude and surrounding terrain. Our data comes from official weather stations and real-time Netatmo sensors for Chamoson and neighboring municipalities.
On this page you will find the detailed weather forecast for Chamoson: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Chamoson: 1991–2020 normals
In Chamoson (639 m), the mean annual temperature is 10.2 °C. The warmest month is July (19.2 °C on average) and the coldest January (1.8 °C). About 606 mm of precipitation falls per year, peaking in December (70 mm) with a minimum in April (35 mm). The sun shines for about 2137 hours a year, mostly in July (269 h). On average there are 82 frost days and 18 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 30.5 °C and the absolute minimum −8.7 °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 | 1.8 °C | 12.2 °C | −8.7 °C | 54 | 90 | 22 | 0 |
| Feb | 2.6 °C | 14.2 °C | −7.4 °C | 42 | 130 | 18 | 0 |
| Mar | 6.0 °C | 17.6 °C | −4.8 °C | 38 | 188 | 8 | 0 |
| Apr | 9.4 °C | 20.9 °C | −1.3 °C | 35 | 209 | 1 | 2 |
| May | 13.4 °C | 25.2 °C | 3.0 °C | 54 | 225 | 0 | 7 |
| Jun | 17.3 °C | 29.3 °C | 6.7 °C | 50 | 251 | 0 | 16 |
| Jul | 19.2 °C | 30.5 °C | 9.3 °C | 64 | 269 | 0 | 21 |
| Aug | 18.7 °C | 29.9 °C | 8.5 °C | 62 | 248 | 0 | 18 |
| Sep | 14.9 °C | 25.5 °C | 5.1 °C | 39 | 208 | 0 | 6 |
| Oct | 11.1 °C | 21.8 °C | 0.8 °C | 44 | 159 | 1 | 0 |
| Nov | 5.9 °C | 18.0 °C | −4.3 °C | 52 | 94 | 10 | 0 |
| Dec | 2.6 °C | 12.8 °C | −7.4 °C | 70 | 66 | 21 | 0 |
| Year | 10.2 °C | 30.5 °C | −8.7 °C | 606 | 2137 | 82 | 71 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Sion (9 km, 482 m), Les Attelas (9 km, 2734 m), Evionnaz (16 km, 482 m), adjusted to the elevation of Chamoson (639 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Chamoson:
- Weather Riddes
- Weather Isérables
- Weather Conthey
- Weather Vétroz
- Weather Saxon
- Weather Ardon
- Weather Leytron
- Weather Nendaz
- Weather Saillon
- Weather Veysonnaz
- Weather Fully
- Weather Sion
→ Nearby cities · Canton Valais
Frequently asked questions about weather in Chamoson
What is the weather in Chamoson today?
At the top of the page you will find the current temperature, precipitation and wind in Chamoson, updated in real time.
What is the 15-day forecast for Chamoson?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Chamoson.
Will it rain tomorrow in Chamoson?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Chamoson.
What is the air quality in Chamoson?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Chamoson.
Are there weather alerts for Chamoson?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Chamoson located?
Chamoson sits at around 639 m above sea level in the canton of Valais. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Chamoson?
The warmest month in Chamoson is July, averaging 19.2 °C (1991–2020 normal). The coldest is January at 1.8 °C.
How much does it rain in Chamoson per year?
Chamoson receives about 606 mm of precipitation a year. The wettest month is December (70 mm), the driest April (35 mm).
When is the best time to visit Chamoson?
For warmth and sunshine: July (19.2 °C on average, 269 h of sun). The coldest month is January (1.8 °C). Check the 15-day forecast above for your dates.