January weather in Sebastopol, CA
The average temperature in Sebastopol in January is 47.7°F (37.3°F–58.0°F). Average precipitation: 7.88 inches.
January is a winter month in Sebastopol, and is cooler than the annual average of 57.9°F. Daily temperatures swing about 20.7°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 9h 36m. For travel, January is a wet month.
Avg High
58.0°F
Avg Low
37.3°F
Precipitation
7.88 in
Daylight
9h 36m
January records in Sebastopol
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 70.0°F (2018) | 19.9°F (1991) | 3.53 in (1997) |
| January 2 | 75.9°F (1996) | 21.0°F (1976) | 2.30 in (2002) |
| January 3 | 69.1°F (1996) | 21.9°F (1950) | 1.47 in (1987) |
| January 4 | 75.0°F (2014) | 23.0°F (1950) | 5.72 in (1982) |
| January 5 | 73.9°F (2014) | 19.9°F (1949) | 3.85 in (1966) |
| January 6 | 73.9°F (2012) | 21.9°F (1950) | 2.50 in (1941) |
| January 7 | 70.0°F (2025) | 21.0°F (1973) | 2.00 in (1956) |
| January 8 | 84.0°F (1962) | 21.9°F (1937) | 2.50 in (2017) |
| January 9 | 80.1°F (1962) | 18.0°F (1937) | 3.65 in (1995) |
| January 10 | 70.0°F (1932) | 19.9°F (1949) | 2.70 in (1968) |
| January 11 | 71.1°F (1932) | 19.9°F (1949) | 5.43 in (1979) |
| January 12 | 73.0°F (2012) | 25.0°F (1949) | 4.95 in (1973) |
| January 13 | 84.0°F (2009) | 21.0°F (1963) | 3.52 in (1969) |
| January 14 | 73.9°F (2009) | 19.0°F (2007) | 3.05 in (1970) |
| January 15 | 73.0°F (2009) | 19.9°F (2007) | 3.00 in (1974) |
| January 16 | 73.9°F (2014) | 19.9°F (1987) | 4.15 in (1954) |
| January 17 | 77.0°F (2021) | 19.9°F (2012) | 2.34 in (1954) |
| January 18 | 80.1°F (2021) | 23.0°F (1943) | 2.01 in (1973) |
| January 19 | 75.9°F (2014) | 25.0°F (1943) | 2.65 in (1962) |
| January 20 | 73.9°F (2014) | 21.0°F (1937) | 5.12 in (1967) |
| January 21 | 73.9°F (2014) | 24.1°F (1962) | 4.42 in (1967) |
| January 22 | 78.1°F (2014) | 19.9°F (1937) | 1.93 in (1931) |
| January 23 | 75.9°F (2011) | 24.1°F (1949) | 2.28 in (2012) |
| January 24 | 75.9°F (2006) | 21.0°F (1937) | 5.48 in (1952) |
| January 25 | 77.0°F (1984) | 23.0°F (1949) | 4.77 in (1940) |
| January 26 | 80.1°F (2014) | 24.1°F (1949) | 3.50 in (2008) |
| January 27 | 73.9°F (2014) | 24.1°F (1957) | 3.96 in (1983) |
| January 28 | 80.1°F (1984) | 21.9°F (1975) | 2.67 in (1926) |
| January 29 | 72.0°F (2015) | 21.0°F (1979) | 2.45 in (1961) |
| January 30 | 73.9°F (2018) | 19.9°F (1975) | 4.22 in (1963) |
| January 31 | 75.0°F (2015) | 21.0°F (1980) | 5.60 in (1945) |