About Grossaffoltern
Grossaffoltern is a Swiss municipality located in the canton of Bern (BE), at 47.069° latitude and 7.366° longitude. The municipality is part of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Also known as Grossaffoltern, Grossaffoltern benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Grossaffoltern
The climate in Grossaffoltern 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 Grossaffoltern and neighboring municipalities.
On this page you will find the detailed weather forecast for Grossaffoltern: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Grossaffoltern: 1991–2020 normals
In Grossaffoltern (523 m), the mean annual temperature is 9.4 °C. The warmest month is July (18.8 °C on average) and the coldest January (0.5 °C). About 1005 mm of precipitation falls per year, peaking in August (108 mm) with a minimum in February (55 mm). The sun shines for about 1796 hours a year, mostly in July (245 h). On average there are 93 frost days and 11 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.7 °C and the absolute minimum −9.7 °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 | 0.5 °C | 10.8 °C | −9.7 °C | 59 | 66 | 22 | 0 |
| Feb | 1.4 °C | 12.9 °C | −8.7 °C | 55 | 94 | 20 | 0 |
| Mar | 5.3 °C | 18.3 °C | −5.3 °C | 63 | 151 | 14 | 0 |
| Apr | 9.1 °C | 22.6 °C | −1.8 °C | 76 | 179 | 4 | 0 |
| May | 13.3 °C | 26.8 °C | 2.2 °C | 108 | 197 | 0 | 3 |
| Jun | 17.0 °C | 30.3 °C | 5.9 °C | 102 | 223 | 0 | 11 |
| Jul | 18.8 °C | 31.7 °C | 8.5 °C | 108 | 245 | 0 | 16 |
| Aug | 18.3 °C | 31.1 °C | 7.8 °C | 108 | 228 | 0 | 15 |
| Sep | 14.1 °C | 25.9 °C | 4.1 °C | 84 | 175 | 0 | 4 |
| Oct | 9.7 °C | 20.7 °C | −0.1 °C | 87 | 119 | 2 | 0 |
| Nov | 4.5 °C | 15.1 °C | −4.8 °C | 76 | 66 | 10 | 0 |
| Dec | 1.2 °C | 11.2 °C | −8.4 °C | 79 | 53 | 20 | 0 |
| Year | 9.4 °C | 31.7 °C | −9.7 °C | 1005 | 1796 | 93 | 50 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Bern / Zollikofen (11 km, 553 m), Mühleberg (13 km, 480 m), Grenchen (13 km, 428 m), adjusted to the elevation of Grossaffoltern (523 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Grossaffoltern:
- Weather Wengi
- Weather Diessbach bei Büren
- Weather Schnottwil
- Weather Aarberg
- Weather Kappelen
- Weather Rapperswil (BE)
- Weather Büetigen
- Weather Lyss
- Weather Schüpfen
- Weather Biezwil
- Weather Worben
- Weather Messen
Frequently asked questions about weather in Grossaffoltern
What is the weather in Grossaffoltern today?
At the top of the page you will find the current temperature, precipitation and wind in Grossaffoltern, updated in real time.
What is the 15-day forecast for Grossaffoltern?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Grossaffoltern.
Will it rain tomorrow in Grossaffoltern?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Grossaffoltern.
What is the air quality in Grossaffoltern?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Grossaffoltern.
Are there weather alerts for Grossaffoltern?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Grossaffoltern located?
Grossaffoltern sits at around 523 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 Grossaffoltern?
The warmest month in Grossaffoltern is July, averaging 18.8 °C (1991–2020 normal). The coldest is January at 0.5 °C.
How much does it rain in Grossaffoltern per year?
Grossaffoltern receives about 1005 mm of precipitation a year. The wettest month is August (108 mm), the driest February (55 mm).
When is the best time to visit Grossaffoltern?
For warmth and sunshine: July (18.8 °C on average, 245 h of sun). The coldest month is January (0.5 °C). Check the 15-day forecast above for your dates.