Average annual temperature is 11.7 °C
Absolute maximum temperature: 34.4 °C
Absolute minimum temperature: -8.8 °C
Number of sunny days: 134
Number of rainy days: 220
Number of snow days: 11
Average annual precipitation: 1369 mm
Look at detailed online map of Olten
* Weather data for Olten Switzerland is based on climate observations for 2023 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 15 | 14.9 | 19.2 | 19.2 | 24.7 | 31 | 34.4 | 34.3 | 29.6 | 26 | 15.7 | 12 |
| Average daytime temperature (°C) | 5.8 | 8.2 | 11.4 | 12.4 | 18.7 | 26.4 | 25.6 | 25.6 | 24.3 | 18.6 | 9.2 | 7 |
| Average temperature (°C) | 3.1 | 3.3 | 7 | 8.3 | 14 | 20.6 | 20.5 | 20.5 | 18.7 | 13.4 | 6.3 | 4 |
| Average night temperature (°C) | 0.4 | -0.4 | 2.7 | 4.3 | 9.6 | 14.6 | 15.7 | 15.8 | 13.4 | 9 | 3.3 | 1.1 |
| Absolute minimum temperature (°C) | -5.6 | -5.2 | -3.2 | -1.7 | 6 | 11.8 | 10.8 | 9.2 | 7 | 3.3 | -1.8 | -8.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.5 | 11 | 12.8 | 14.4 | 15.7 | 16 | 15.9 | 14.9 | 13.4 | 11.7 | 10 | 8.8 |
| Daylight mean duration (h) | 9 | 10.3 | 11.9 | 13.6 | 15.1 | 15.9 | 15.5 | 14.2 | 12.6 | 10.9 | 9.4 | 8.5 |
| Daylight minimum duration (h) | 8.5 | 9.6 | 11.1 | 12.8 | 14.5 | 15.7 | 15 | 13.4 | 11.8 | 10.1 | 8.8 | 8.5 |
| Sunshine mean duration (h) | 3.3 | 6.5 | 7.1 | 7.3 | 8.8 | 13.5 | 11.7 | 10.4 | 10.1 | 7.9 | 4.5 | 4.3 |
| Precipitation (mm) | 49 | 24 | 130 | 142 | 109 | 55 | 240 | 120 | 42 | 88 | 218 | 152 |
| Sunny days | 8 | 14 | 12 | 4 | 8 | 18 | 8 | 11 | 21 | 16 | 4 | 10 |
| Rainy days | 16 | 13 | 19 | 26 | 23 | 12 | 23 | 20 | 9 | 15 | 25 | 19 |
| Snow days | 7 | 1 | 1 | 2 |
The best time to visit Olten during the most sunny months:
Months with the longest average daylight duration in Olten:
The largest precipitation sum in Olten is at