Climate almanac
Sebastopol
California, United States · 38.40°, -122.82°
What is the climate like in Sebastopol?
The best time to visit Sebastopol is typically May – October, with trip comfort peaking in July (9.5/10). Sebastopol is warmest in July, when daily highs average 86°F (30°C), and coolest in December, when lows fall to about 41°F (5°C). The wettest month is typically January and the driest is July; the year sees roughly 30 in (755 mm) of precipitation.
- Best time to visitMay – October — comfort peaks in July (9.5/10)
- Warmest monthJuly — average high 86°F (30°C)
- Coolest monthDecember — average low 41°F (5°C)
- Wettest monthJanuary (6.3 in (161 mm))
- Driest monthJuly (0.0 in (0 mm))
- Annual precipitation30 in (755 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromSanta Rosa, 11 km away (1902-2026)