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Sebastopol, CA Weather


Sebastopol, CA climate is mild during summer when temperatures tend to be in the 60's and cold during winter when temperatures tend to be in the 40's.

The warmest month of the year is August with an average maximum temperature of 83.80 degrees Fahrenheit, while the coldest month of the year is December with an average minimum temperature of 34.30 degrees Fahrenheit.

Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 35 degrees Fahrenheit, and moderate during winter with an average difference of 22 degrees Fahrenheit.

The annual average precipitation at Sebastopol is 40.83 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is January with an average rainfall of 8.65 Inches.

Weather Data

Moon, Sunrise and Sunset

Waning Crescent Moon Moon Phase: Waning Crescent Moon Civil Twilight:
6:53 AM PST
Sunrise:
7:22 AM PST
Sunset:
4:52 PM PST
Civil Twilight:
5:22 PM PST

Normal Climate

Normal Temperatures

(GRATON Weather station, 3.20 miles from Sebastopol)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 57.0 61.7 64.9 70.2 75.8 81.2 83.6 83.8 82.4 77.0 65.5 57.5 71.7
Mean °F 46.4 49.9 52.5 55.8 60.2 64.4 66.5 66.4 65.1 60.1 51.8 45.9 57.1
Min °F 35.7 38.1 40.1 41.4 44.5 47.6 49.3 49.0 47.7 43.1 38.0 34.3 42.4

Normal Precipitation

(GRATON Weather station, 3.20 miles from Sebastopol)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 8.65 7.64 6.15 2.25 1.03 0.25 0.08 0.11 0.52 2.01 5.85 6.29 40.83