About Sierre
Sierre is a Swiss municipality located in the canton of Valais (VS), at 46.289° latitude and 7.559° longitude. The municipality is part of the Valais Alps, dry continental climate, among the sunniest in Switzerland. Also known as Sierre, Sierre benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Sierre
The climate in Sierre 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 Sierre and neighboring municipalities.
On this page you will find the detailed weather forecast for Sierre: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Sierre: 1991–2020 normals
In Sierre (575 m), the mean annual temperature is 11.0 °C. The warmest month is July (19.7 °C on average) and the coldest January (2.8 °C). About 669 mm of precipitation falls per year, peaking in December (76 mm) with a minimum in September (41 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 31.8 °C and the absolute minimum −7.7 °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 | 2.8 °C | 13.2 °C | −7.7 °C | 66 | 90 | 24 | 0 |
| Feb | 3.1 °C | 14.6 °C | −7.7 °C | 54 | 130 | 20 | 0 |
| Mar | 6.5 °C | 18.6 °C | −4.6 °C | 46 | 188 | 9 | 0 |
| Apr | 10.0 °C | 22.3 °C | −1.0 °C | 42 | 209 | 1 | 2 |
| May | 14.1 °C | 26.8 °C | 3.7 °C | 61 | 225 | 0 | 8 |
| Jun | 17.8 °C | 30.7 °C | 7.2 °C | 56 | 251 | 0 | 17 |
| Jul | 19.7 °C | 31.8 °C | 9.7 °C | 61 | 269 | 0 | 22 |
| Aug | 19.5 °C | 31.5 °C | 9.0 °C | 65 | 248 | 0 | 20 |
| Sep | 15.6 °C | 26.8 °C | 5.8 °C | 41 | 208 | 0 | 7 |
| Oct | 11.8 °C | 23.2 °C | 1.7 °C | 46 | 159 | 2 | 0 |
| Nov | 6.8 °C | 18.3 °C | −3.4 °C | 54 | 94 | 11 | 0 |
| Dec | 3.7 °C | 14.0 °C | −6.7 °C | 76 | 66 | 23 | 0 |
| Year | 11.0 °C | 31.8 °C | −7.7 °C | 669 | 2137 | 90 | 77 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Montana (8 km, 1423 m), Sion (19 km, 482 m), Evolène / Villa (20 km, 1825 m), adjusted to the elevation of Sierre (575 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Sierre:
- Weather Noble-Contrée
- Weather Chippis
- Weather Anniviers
- Weather Salgesch
- Weather Crans-Montana
- Weather Chalais
- Weather Varen
- Weather Grône
- Weather Inden
- Weather Leukerbad
- Weather Lens
- Weather Agarn
→ Nearby cities · Canton Valais
Frequently asked questions about weather in Sierre
What is the weather in Sierre today?
At the top of the page you will find the current temperature, precipitation and wind in Sierre, updated in real time.
What is the 15-day forecast for Sierre?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Sierre.
Will it rain tomorrow in Sierre?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Sierre.
What is the air quality in Sierre?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Sierre.
Are there weather alerts for Sierre?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Sierre located?
Sierre sits at around 575 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 Sierre?
The warmest month in Sierre is July, averaging 19.7 °C (1991–2020 normal). The coldest is January at 2.8 °C.
How much does it rain in Sierre per year?
Sierre receives about 669 mm of precipitation a year. The wettest month is December (76 mm), the driest September (41 mm).
When is the best time to visit Sierre?
For warmth and sunshine: July (19.7 °C on average, 269 h of sun). The coldest month is January (2.8 °C). Check the 15-day forecast above for your dates.