Sebastopol, CA
Climate overview — based on NOAA 1991-2020 normals from GRATON, CA US.
Year-round temperatures (°F)
Climate summary
Sebastopol has an annual average temperature of 57.9°F with about 39.9 inches of precipitation per year. The warmest month is August (average high 83.8°F), and the coldest is December (average low 36.8°F). December is typically the wettest month (8.34 in) and July the driest (0.01 in).
Best time to visit Sebastopol
Full guide →Climate change signal
All-time records →62 of 366 (16.9%) of Sebastopol's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1920s | 17 | |
| 1930s | 53 | |
| 1940s | 5 | |
| 1950s | 16 | |
| 1960s | 19 | |
| 1970s | 38 | |
| 1980s | 49 | |
| 1990s | 25 | |
| 2000s | 44 | |
| 2010s | 64 | |
| 2020s | 36 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 58.0°F | 37.3°F | 47.7°F | 7.88 in | — | 13 |
| February | 62.3°F | 39.0°F | 50.7°F | 7.48 in | — | 12 |
| March | 65.9°F | 40.7°F | 53.3°F | 5.18 in | — | 11 |
| April | 70.2°F | 42.2°F | 56.2°F | 2.58 in | — | 7 |
| May | 75.2°F | 45.5°F | 60.4°F | 1.41 in | — | 4 |
| June | 81.3°F | 48.3°F | 64.8°F | 0.41 in | — | 2 |
| July | 82.6°F | 50.5°F | 66.5°F | 0.01 in | — | 0 |
| August | 83.8°F | 50.3°F | 67.1°F | 0.06 in | — | 1 |
| September | 83.7°F | 48.0°F | 65.9°F | 0.18 in | — | 2 |
| October | 78.2°F | 44.2°F | 61.2°F | 1.98 in | — | 4 |
| November | 66.8°F | 39.7°F | 53.3°F | 4.43 in | — | 9 |
| December | 57.7°F | 36.8°F | 47.2°F | 8.34 in | — | 13 |
Climate twins of Sebastopol
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).