Average annual temperature is 11.8 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: -10.5 °C
Number of sunny days: 132 days
Number of rainy days: 224 days
Number of snow days: 9 days
Look at detailed online map of Biel/Bienne
* Weather data for Biel/Bienne 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) | 14.1 | 14.7 | 17.9 | 19.3 | 24.1 | 30.9 | 33.3 | 36.4 | 30.8 | 26.2 | 14.8 | 12.3 |
| Average daytime temperature (°C) | 5.3 | 8.3 | 11.2 | 12.4 | 18.6 | 26.4 | 25.5 | 26.2 | 24.7 | 18.6 | 9.1 | 7.2 |
| Average temperature (°C) | 2.9 | 3.8 | 6.9 | 8.4 | 14.1 | 20.8 | 20.4 | 20.9 | 19.0 | 13.7 | 6.2 | 4.2 |
| Average night temperature (°C) | 0.2 | 0.3 | 2.7 | 4.1 | 9.7 | 14.9 | 15.4 | 15.9 | 13.7 | 9.1 | 3.3 | 1.9 |
| Absolute minimum temperature (°C) | -10.5 | -4.6 | -3.4 | -1.5 | 6.0 | 12.1 | 11.0 | 8.5 | 6.8 | 2.9 | -2.9 | -5.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.0 | 10.3 | 11.9 | 13.6 | 15.1 | 15.8 | 15.5 | 14.2 | 12.6 | 10.9 | 9.4 | 8.6 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 2.6 | 6.4 | 6.9 | 7.9 | 9.3 | 13.5 | 11.7 | 10.3 | 10.2 | 7.6 | 3.5 | 3.4 |
| Precipitation (mm) | 64 | 17 | 123 | 112 | 105 | 47 | 161 | 101 | 54 | 108 | 202 | 174 |
| Sunny days | 12 | 15 | 10 | 5 | 8 | 12 | 10 | 9 | 22 | 16 | 4 | 9 |
| Rainy days | 14 | 10 | 21 | 25 | 23 | 18 | 21 | 22 | 8 | 15 | 26 | 21 |
| Snow days | 5 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Biel/Bienne during the most sunny months:
Months with the longest average daylight duration in Biel/Bienne:
The largest precipitation sum in Biel/Bienne is at