About Solothurn
Solothurn is a Swiss municipality located in the canton of Solothurn (SO), at 47.208° latitude and 7.528° longitude. The municipality is part of the Swiss plateau, transitional temperate oceanic climate with four distinct seasons. Also known as Solothurn, Solothurn benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Solothurn
The climate in Solothurn 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 Solothurn and neighboring municipalities.
On this page you will find the detailed weather forecast for Solothurn: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Solothurn: 1991–2020 normals
In Solothurn (433 m), the mean annual temperature is 9.7 °C. The warmest month is July (19.1 °C on average) and the coldest January (0.7 °C). About 1036 mm of precipitation falls per year, peaking in August (114 mm) with a minimum in February (59 mm). The sun shines for about 1651 hours a year, mostly in July (243 h). On average there are 92 frost days and 12 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.6 °C and the absolute minimum −10.3 °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 | 0.7 °C | 10.6 °C | −10.3 °C | 69 | 43 | 22 | 0 |
| Feb | 1.5 °C | 13.1 °C | −9.4 °C | 59 | 81 | 20 | 0 |
| Mar | 5.5 °C | 19.0 °C | −5.7 °C | 65 | 140 | 15 | 0 |
| Apr | 9.4 °C | 23.4 °C | −2.3 °C | 75 | 176 | 5 | 0 |
| May | 13.6 °C | 27.6 °C | 2.0 °C | 106 | 196 | 0 | 4 |
| Jun | 17.3 °C | 31.1 °C | 5.7 °C | 105 | 221 | 0 | 12 |
| Jul | 19.1 °C | 32.6 °C | 8.3 °C | 109 | 243 | 0 | 17 |
| Aug | 18.7 °C | 31.8 °C | 7.5 °C | 114 | 219 | 0 | 15 |
| Sep | 14.4 °C | 26.5 °C | 3.8 °C | 85 | 158 | 0 | 4 |
| Oct | 9.9 °C | 21.2 °C | −0.5 °C | 86 | 95 | 2 | 0 |
| Nov | 4.7 °C | 15.1 °C | −5.1 °C | 77 | 46 | 10 | 0 |
| Dec | 1.5 °C | 11.2 °C | −8.7 °C | 88 | 33 | 18 | 0 |
| Year | 9.7 °C | 32.6 °C | −10.3 °C | 1036 | 1651 | 92 | 52 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Grenchen (9 km, 428 m), Koppigen (12 km, 485 m), Wynau (20 km, 422 m), adjusted to the elevation of Solothurn (433 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Solothurn:
- Weather Langendorf
- Weather Biberist
- Weather Rüttenen
- Weather Zuchwil
- Weather Bellach
- Weather Feldbrunnen-St. Niklaus
- Weather Lommiswil
- Weather Oberdorf (SO)
- Weather Lüsslingen-Nennigkofen
- Weather Lohn-Ammannsegg
- Weather Luterbach
- Weather Lüterkofen-Ichertswil
→ Nearby cities · Canton Solothurn
Frequently asked questions about weather in Solothurn
What is the weather in Solothurn today?
At the top of the page you will find the current temperature, precipitation and wind in Solothurn, updated in real time.
What is the 15-day forecast for Solothurn?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Solothurn.
Will it rain tomorrow in Solothurn?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Solothurn.
What is the air quality in Solothurn?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Solothurn.
Are there weather alerts for Solothurn?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Solothurn located?
Solothurn sits at around 433 m above sea level in the canton of Solothurn. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Solothurn?
The warmest month in Solothurn is July, averaging 19.1 °C (1991–2020 normal). The coldest is January at 0.7 °C.
How much does it rain in Solothurn per year?
Solothurn receives about 1036 mm of precipitation a year. The wettest month is August (114 mm), the driest February (59 mm).
When is the best time to visit Solothurn?
For warmth and sunshine: July (19.1 °C on average, 243 h of sun). The coldest month is January (0.7 °C). Check the 15-day forecast above for your dates.