Average annual temperature is 6.6 °C
Absolute maximum temperature: 30.9 °C
Absolute minimum temperature: -15.3 °C
Number of sunny days: 147 days
Number of rainy days: 171 days
Number of snow days: 47 days
Look at detailed online map of Vestby
* Weather data for Vestby Norway is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 6.3 | 9.2 | 8.1 | 17.1 | 23.8 | 30.9 | 25.1 | 22.6 | 23.1 | 16.1 | 5.9 | 5.0 |
| Average daytime temperature (°C) | 1.3 | 3.6 | 2.9 | 10.1 | 16.3 | 23.6 | 19.0 | 18.8 | 17.6 | 8.4 | 1.4 | -3.0 |
| Average temperature (°C) | -0.8 | 0.3 | -1.0 | 5.4 | 11.3 | 18.2 | 15.6 | 15.5 | 14.3 | 5.7 | -0.4 | -5.3 |
| Average night temperature (°C) | -3.2 | -3.3 | -5.6 | 0.7 | 5.7 | 12.3 | 12.0 | 12.4 | 11.2 | 3.0 | -2.3 | -8.2 |
| Absolute minimum temperature (°C) | -13.4 | -11.5 | -15.3 | -7.9 | -0.7 | 5.5 | 8.7 | 9.2 | 6.6 | -2.9 | -10.0 | -14.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 7.0 | 10.0 | 13.0 | 15.0 | 18.0 | 18.0 | 18.0 | 16.0 | 14.0 | 11.0 | 8.0 | 6.0 |
| Daylight mean duration (h) | 7.0 | 9.2 | 11.8 | 14.5 | 17.1 | 18.6 | 17.8 | 15.5 | 12.9 | 10.2 | 7.6 | 6.2 |
| Daylight minimum duration (h) | 6.0 | 8.0 | 10.0 | 13.0 | 15.0 | 18.0 | 16.0 | 14.0 | 11.0 | 8.0 | 6.0 | 6.0 |
| Sunshine mean duration (h) | 2.2 | 5.6 | 5.9 | 9.0 | 13.3 | 14.3 | 11.9 | 8.8 | 7.0 | 5.0 | 1.7 | 1.5 |
| Precipitation (mm) | 132 | 46 | 84 | 139 | 19 | 62 | 129 | 207 | 123 | 50 | 84 | 64 |
| Sunny days | 9 | 16 | 8 | 15 | 19 | 21 | 5 | 4 | 12 | 18 | 9 | 11 |
| Rainy days | 15 | 10 | 10 | 14 | 12 | 9 | 26 | 27 | 18 | 10 | 11 | 9 |
| Snow days | 7 | 2 | 13 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 10 | 11 |
The best time to visit Vestby during the most sunny months:
Months with the longest average daylight duration in Vestby:
The largest precipitation sum in Vestby is at