About Grandval
Grandval is a Swiss municipality located in the canton of Bern (BE), at 47.283° latitude and 7.428° longitude. The municipality is part of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Also known as Grandval, Grandval benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Grandval
The climate in Grandval is characteristic of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. 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 Grandval and neighboring municipalities.
On this page you will find the detailed weather forecast for Grandval: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Grandval: 1991–2020 normals
In Grandval (603 m), the mean annual temperature is 8.9 °C. The warmest month is July (18.2 °C on average) and the coldest January (−0.0 °C). About 972 mm of precipitation falls per year, peaking in August (106 mm) with a minimum in February (55 mm). The sun shines for about 1595 hours a year, mostly in July (237 h). On average there are 88 frost days and 14 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.1 °C and the absolute minimum −11.8 °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 | −0.0 °C | 11.3 °C | −11.8 °C | 59 | 60 | 21 | 0 |
| Feb | 0.9 °C | 13.5 °C | −10.7 °C | 55 | 83 | 19 | 0 |
| Mar | 4.7 °C | 18.8 °C | −7.2 °C | 59 | 133 | 14 | 0 |
| Apr | 8.5 °C | 23.1 °C | −3.5 °C | 72 | 159 | 5 | 1 |
| May | 12.6 °C | 26.9 °C | 0.8 °C | 103 | 168 | 0 | 4 |
| Jun | 16.4 °C | 30.5 °C | 4.7 °C | 101 | 191 | 0 | 12 |
| Jul | 18.2 °C | 32.1 °C | 7.1 °C | 104 | 237 | 0 | 17 |
| Aug | 17.7 °C | 31.4 °C | 6.4 °C | 106 | 213 | 0 | 16 |
| Sep | 13.5 °C | 26.1 °C | 2.6 °C | 80 | 144 | 0 | 5 |
| Oct | 9.2 °C | 21.7 °C | −1.5 °C | 81 | 100 | 2 | 0 |
| Nov | 4.0 °C | 15.7 °C | −6.1 °C | 76 | 57 | 9 | 0 |
| Dec | 0.8 °C | 11.9 °C | −10.6 °C | 77 | 50 | 18 | 0 |
| Year | 8.9 °C | 32.1 °C | −11.8 °C | 972 | 1595 | 88 | 55 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Delémont (10 km, 439 m), Grenchen (12 km, 428 m), Koppigen (23 km, 485 m), adjusted to the elevation of Grandval (603 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Grandval:
- Weather Belprahon
- Weather Eschert
- Weather Crémines
- Weather Corcelles (BE)
- Weather Moutier
- Weather Roches (BE)
- Weather Welschenrohr-Gänsbrunnen
- Weather Selzach
- Weather Val Terbi
- Weather Seehof
- Weather Oberdorf (SO)
- Weather Châtillon (JU)
Frequently asked questions about weather in Grandval
What is the weather in Grandval today?
At the top of the page you will find the current temperature, precipitation and wind in Grandval, updated in real time.
What is the 15-day forecast for Grandval?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Grandval.
Will it rain tomorrow in Grandval?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Grandval.
What is the air quality in Grandval?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Grandval.
Are there weather alerts for Grandval?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Grandval located?
Grandval sits at around 603 m above sea level in the canton of Bern. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Grandval?
The warmest month in Grandval is July, averaging 18.2 °C (1991–2020 normal). The coldest is January at −0.0 °C.
How much does it rain in Grandval per year?
Grandval receives about 972 mm of precipitation a year. The wettest month is August (106 mm), the driest February (55 mm).
When is the best time to visit Grandval?
For warmth and sunshine: July (18.2 °C on average, 237 h of sun). The coldest month is January (−0.0 °C). Check the 15-day forecast above for your dates.