Average annual temperature is 12.3 °C
Absolute maximum temperature: 37.3 °C
Absolute minimum temperature: -6.3 °C
Number of sunny days: 130 days
Number of rainy days: 227 days
Number of snow days: 8 days
Look at detailed online map of Kanton Basel-Stadt
* Weather data for Kanton Basel-Stadt Switzerland is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 16.0 | 14.9 | 20.5 | 20.2 | 26.0 | 30.7 | 35.5 | 37.3 | 30.7 | 27.3 | 17.4 | 13.8 |
| Average daytime temperature (°C) | 6.9 | 8.7 | 12.4 | 13.3 | 19.4 | 26.7 | 26.2 | 26.6 | 25.3 | 19.3 | 10.2 | 8.2 |
| Average temperature (°C) | 4.1 | 3.9 | 7.7 | 9.0 | 14.5 | 21.1 | 21.0 | 21.2 | 19.1 | 13.7 | 7.2 | 5.0 |
| Average night temperature (°C) | 1.0 | -0.2 | 2.9 | 4.6 | 9.6 | 14.6 | 15.6 | 16.1 | 13.4 | 8.7 | 3.5 | 2.1 |
| Absolute minimum temperature (°C) | -5.4 | -6.3 | -3.2 | -2.9 | 4.3 | 11.1 | 11.9 | 9.3 | 6.7 | 2.2 | -2.9 | -5.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.9 | 10.3 | 11.9 | 13.6 | 15.1 | 15.9 | 15.5 | 14.2 | 12.6 | 10.9 | 9.3 | 8.5 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 2.6 | 6.0 | 6.7 | 7.2 | 9.9 | 13.4 | 11.7 | 9.9 | 10.4 | 6.9 | 3.2 | 3.1 |
| Precipitation (mm) | 81 | 19 | 126 | 120 | 82 | 42 | 156 | 100 | 46 | 119 | 213 | 127 |
| Sunny days | 9 | 14 | 9 | 3 | 9 | 19 | 7 | 12 | 21 | 14 | 3 | 10 |
| Rainy days | 17 | 12 | 22 | 27 | 22 | 11 | 24 | 19 | 9 | 17 | 27 | 20 |
| Snow days | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Kanton Basel-Stadt during the most sunny months:
Months with the longest average daylight duration in Kanton Basel-Stadt:
The largest precipitation sum in Kanton Basel-Stadt is at