December weather in Santa Monica, CA
The average temperature in Santa Monica in December is 56.5°F (49.5°F–63.4°F). Average precipitation: 2.03 inches.
December is a winter month in Santa Monica, and is cooler than the annual average of 60.5°F. Daily temperatures swing about 13.9°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 9h 45m. For travel, December is a comfortable month to visit.
Avg High
63.4°F
Avg Low
49.5°F
Precipitation
2.03 in
Daylight
9h 45m
December records in Santa Monica
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 82.0°F (1969) | 39.9°F (1948) | 0.14 in (1951) |
| December 2 | 82.0°F (1993) | 41.0°F (1946) | 0.72 in (1951) |
| December 3 | 80.1°F (1969) | 43.0°F (1982) | 1.39 in (1966) |
| December 4 | 84.9°F (1965) | 39.9°F (1948) | 2.25 in (1974) |
| December 5 | 89.1°F (1979) | 37.0°F (1948) | 1.79 in (1966) |
| December 6 | 82.9°F (1979) | 42.1°F (1947) | 1.39 in (1997) |
| December 7 | 79.0°F (1979) | 37.0°F (1946) | 1.75 in (1992) |
| December 8 | 81.0°F (1957) | 37.9°F (1945) | 1.33 in (1949) |
| December 9 | 81.0°F (1957) | 34.0°F (1951) | 2.30 in (1941) |
| December 10 | 80.1°F (1979) | 39.0°F (1951) | 1.11 in (1965) |
| December 11 | 79.0°F (1958) | 37.9°F (1972) | 1.80 in (1996) |
| December 12 | 81.0°F (1976) | 37.0°F (1949) | 1.12 in (1937) |
| December 13 | 79.0°F (1952) | 39.0°F (1985) | 1.37 in (1995) |
| December 14 | 82.0°F (1958) | 37.0°F (1946) | 0.48 in (1993) |
| December 15 | 84.9°F (1976) | 36.0°F (1948) | 1.29 in (1957) |
| December 16 | 84.9°F (1976) | 39.0°F (1948) | 1.80 in (1938) |
| December 17 | 84.9°F (1998) | 41.0°F (1948) | 0.28 in (1977) |
| December 18 | 80.1°F (1950) | 39.9°F (1946) | 1.45 in (1967) |
| December 19 | 80.1°F (1954) | 39.0°F (1946) | 3.04 in (1938) |
| December 20 | 84.0°F (1960) | 39.0°F (1948) | 1.47 in (1964) |
| December 21 | 80.1°F (1972) | 35.1°F (1949) | 0.98 in (1970) |
| December 22 | 77.0°F (1976) | 36.0°F (1961) | 1.60 in (1945) |
| December 23 | 80.1°F (1960) | 37.0°F (1948) | 1.30 in (1945) |
| December 24 | 81.0°F (1985) | 41.0°F (1949) | 1.89 in (1971) |
| December 25 | 84.9°F (1947) | 34.0°F (1948) | 1.95 in (1983) |
| December 26 | 80.1°F (1947) | 37.9°F (1987) | 1.55 in (1977) |
| December 27 | 80.1°F (1947) | 36.0°F (1952) | 1.88 in (1971) |
| December 28 | 75.0°F (1937) | 37.9°F (1948) | 2.25 in (2004) |
| December 29 | 81.0°F (1963) | 39.0°F (1946) | 3.34 in (1951) |
| December 30 | 79.0°F (1997) | 37.9°F (1965) | 0.76 in (1951) |
| December 31 | 73.9°F (1937) | 37.9°F (1947) | 1.54 in (2004) |