Average annual temperature is 7.6 °C
Absolute maximum temperature: 27.1 °C
Absolute minimum temperature: -14.7 °C
Number of sunny days: 122 days
Number of rainy days: 212 days
Number of snow days: 31 days
Look at detailed online map of By
* Weather data for By Sweden is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 6.6 | 8.8 | 9.3 | 19.1 | 24.3 | 27.1 | 25.9 | 23.5 | 24.2 | 16.0 | 9.4 | 7.7 |
| Average daytime temperature (°C) | 2.9 | 3.7 | 4.4 | 10.8 | 18.1 | 23.0 | 18.5 | 18.7 | 19.1 | 9.9 | 3.5 | 1.2 |
| Average temperature (°C) | 1.3 | 0.8 | 0.7 | 5.7 | 11.9 | 17.3 | 14.8 | 15.1 | 15.1 | 7.2 | 1.7 | -0.5 |
| Average night temperature (°C) | -0.6 | -2.4 | -2.7 | 0.7 | 5.5 | 10.4 | 11.3 | 11.9 | 11.7 | 4.6 | -0.4 | -2.6 |
| Absolute minimum temperature (°C) | -8.1 | -14.7 | -12.2 | -5.0 | -0.5 | 3.2 | 8.3 | 9.0 | 8.3 | -0.9 | -9.2 | -9.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 8.0 | 10.0 | 13.0 | 15.0 | 17.0 | 18.0 | 17.0 | 16.0 | 13.0 | 11.0 | 9.0 | 7.0 |
| Daylight mean duration (h) | 7.4 | 9.4 | 11.8 | 14.3 | 16.6 | 17.9 | 17.3 | 15.2 | 12.8 | 10.3 | 8.0 | 6.7 |
| Daylight minimum duration (h) | 6.0 | 8.0 | 10.0 | 13.0 | 15.0 | 17.0 | 16.0 | 14.0 | 11.0 | 9.0 | 7.0 | 6.0 |
| Sunshine mean duration (h) | 1.4 | 3.7 | 4.9 | 9.5 | 13.0 | 13.8 | 11.2 | 7.0 | 7.3 | 4.3 | 1.2 | 0.8 |
| Precipitation (mm) | 130 | 55 | 133 | 19 | 37 | 55 | 183 | 179 | 63 | 123 | 62 | 79 |
| Sunny days | 8 | 17 | 5 | 18 | 20 | 20 | 3 | 2 | 12 | 6 | 6 | 5 |
| Rainy days | 22 | 10 | 15 | 11 | 11 | 10 | 28 | 29 | 18 | 25 | 16 | 17 |
| Snow days | 1 | 1 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 9 |
The best time to visit By during the most sunny months:
Months with the longest average daylight duration in By:
The largest precipitation sum in By is at