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Weather Grimisuat

7-day forecast for Grimisuat

Today (Thursday 20 Aug) in Grimisuat: thunderstorms, 18 to 26 °C, precipitation 5.5 mm (68 %), wind up to 16 km/h. Tomorrow: thunderstorms, 15 to 19 °C.

DayWeatherMinMaxPrecip.Wind
Todaythunderstorms18 °C26 °C5.5 mm16 km/h
Tomorrowthunderstorms15 °C19 °C9.5 mm21 km/h
Sat 22 Augovercast13 °C20 °C0.0 mm10 km/h
Sun 23 Augmostly sunny10 °C24 °C0.0 mm9 km/h
Mon 24 Augovercast14 °C27 °C0.0 mm10 km/h
Tue 25 Auglight rain16 °C25 °C0.1 mm10 km/h
Wed 26 Augovercast17 °C30 °C0.0 mm7 km/h

Forecast updated on 20.08.2026 at 15:41 (Open-Meteo model, elevation 858 m). The interactive block at the top refreshes hourly and covers 16 days.

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About Grimisuat

Grimisuat is a Swiss municipality located in the canton of Valais (VS), at 46.250° latitude and 7.366° longitude. The municipality is part of the Valais Alps, dry continental climate, among the sunniest in Switzerland. Also known as Grimisuat, Grimisuat benefits from precise weather monitoring with hourly and 15-day forecasts.

858m Elevation
Foothills Zone
Snow & altitude climate In the foothills snow lies for a few weeks each winter and inversion fog is common in the valley bottoms.

Climate of Grimisuat

The climate in Grimisuat 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 Grimisuat and neighboring municipalities.

On this page you will find the detailed weather forecast for Grimisuat: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.

Climate of Grimisuat: 1991–2020 normals

In Grimisuat (858 m), the mean annual temperature is 8.9 °C. The warmest month is July (18.4 °C on average) and the coldest January (−0.7 °C). About 663 mm of precipitation falls per year, peaking in December (77 mm) with a minimum in April (39 mm). The mean monthly maximum reaches 31.1 °C and the absolute minimum −10.5 °C.

8.9 °CMean annual temperature
663 mmPrecipitation per year
JFMAMJJASOND

Mean monthly precipitation (mm) — bar height relative to the wettest month.

MonthMean TAbs. maxAbs. minPrecip. (mm)
Jan−0.7 °C10.1 °C−10.5 °C61
Feb0.7 °C13.3 °C−9.4 °C48
Mar5.1 °C18.6 °C−5.8 °C43
Apr9.0 °C22.1 °C−2.4 °C39
May13.0 °C26.5 °C1.7 °C59
Jun16.7 °C30.1 °C5.3 °C55
Jul18.4 °C31.1 °C7.7 °C67
Aug17.8 °C30.7 °C6.8 °C67
Sep13.8 °C25.6 °C3.5 °C42
Oct9.2 °C21.3 °C−1.3 °C48
Nov3.7 °C16.4 °C−6.4 °C56
Dec−0.1 °C10.7 °C−9.9 °C77
Year8.9 °C31.1 °C−10.5 °C663

Source: MeteoSwiss open data (1991–2020 normals) — stations Sion (4 km, 482 m), Montana (9 km, 1423 m), Les Diablerets (15 km, 2964 m), adjusted to the elevation of Grimisuat (858 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.

Nearby cities

Check the weather of cities near Grimisuat:

Frequently asked questions about weather in Grimisuat

What is the weather in Grimisuat today?

At the top of the page you will find the current temperature, precipitation and wind in Grimisuat, updated in real time.

What is the 15-day forecast for Grimisuat?

The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Grimisuat.

Will it rain tomorrow in Grimisuat?

Check the 48-hour hourly forecast to see exactly when precipitation is expected in Grimisuat.

What is the air quality in Grimisuat?

The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Grimisuat.

Are there weather alerts for Grimisuat?

Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.

At what altitude is Grimisuat located?

Grimisuat sits at around 858 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 Grimisuat?

The warmest month in Grimisuat is July, averaging 18.4 °C (1991–2020 normal). The coldest is January at −0.7 °C.

How much does it rain in Grimisuat per year?

Grimisuat receives about 663 mm of precipitation a year. The wettest month is December (77 mm), the driest April (39 mm).

When is the best time to visit Grimisuat?

For warmth and sunshine: July (18.4 °C on average, — h of sun). The coldest month is January (−0.7 °C). Check the 15-day forecast above for your dates.