Average annual temperature is 11.1 °C
Absolute maximum temperature: 33.0 °C
Absolute minimum temperature: -17.8 °C
Number of sunny days: 138 days
Number of rainy days: 215 days
Number of snow days: 12 days
Look at detailed online map of Sebastopol
* Weather data for Sebastopol United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 15.3 | 16.4 | 16.0 | 29.4 | 29.8 | 33.0 | 32.3 | 29.2 | 32.5 | 28.4 | 17.8 | 12.4 |
| Average daytime temperature (°C) | 5.9 | 7.4 | 8.5 | 17.7 | 21.1 | 24.4 | 28.6 | 26.1 | 23.3 | 17.5 | 9.3 | 6.9 |
| Average temperature (°C) | 2.4 | 1.7 | 3.1 | 11.2 | 14.0 | 18.6 | 23.0 | 20.7 | 17.8 | 12.7 | 4.4 | 2.9 |
| Average night temperature (°C) | -0.4 | -3.0 | -1.3 | 5.9 | 7.4 | 13.4 | 18.1 | 16.1 | 13.4 | 8.8 | 0.6 | -0.1 |
| Absolute minimum temperature (°C) | -6.9 | -17.8 | -7.2 | -2.6 | 1.3 | 7.6 | 14.1 | 11.2 | 6.4 | 2.6 | -5.7 | -5.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.0 | 6.2 | 6.8 | 8.5 | 11.9 | 11.0 | 11.6 | 10.6 | 8.4 | 7.3 | 7.3 | 3.5 |
| Precipitation (mm) | 102 | 44 | 88 | 95 | 43 | 140 | 102 | 137 | 135 | 91 | 61 | 133 |
| Sunny days | 8 | 11 | 10 | 13 | 21 | 7 | 6 | 6 | 13 | 16 | 16 | 11 |
| Rainy days | 18 | 13 | 20 | 17 | 10 | 23 | 25 | 25 | 17 | 15 | 13 | 19 |
| Snow days | 5 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Sebastopol during the most sunny months:
The largest precipitation sum in Sebastopol is at