December weather in San Diego, TX
The average temperature in San Diego in December is 60.2°F (49.7°F–70.7°F). Average precipitation: 1.30 inches. Average snowfall is 0.5 inches.
December is a winter month in San Diego, and is cooler than the annual average of 74°F. Daily temperatures swing about 21°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 10h 15m. For travel, December is a comfortable month to visit.
Avg High
70.7°F
Avg Low
49.7°F
Precipitation
1.30 in
Snow
0.5 in
December records in San Diego
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 87.1°F (1983) | 27.0°F (1911) | 0.55 in (1955) |
| December 2 | 89.1°F (1921) | 30.0°F (1957) | 1.80 in (1894) |
| December 3 | 91.9°F (1933) | 28.9°F (1929) | 2.00 in (2001) |
| December 4 | 89.1°F (1933) | 28.0°F (1929) | 2.00 in (1943) |
| December 5 | 93.9°F (1977) | 28.9°F (1925) | 1.53 in (1937) |
| December 6 | 91.0°F (1972) | 30.9°F (1999) | 1.70 in (1931) |
| December 7 | 88.0°F (1994) | 30.9°F (1984) | 1.02 in (1931) |
| December 8 | 87.1°F (1919) | 32.0°F (1968) | 1.77 in (1921) |
| December 9 | 88.0°F (1895) | 23.0°F (1917) | 1.36 in (1964) |
| December 10 | 87.1°F (1993) | 21.9°F (1978) | 0.35 in (1926) |
| December 11 | 91.9°F (1987) | 23.0°F (1978) | 1.02 in (1941) |
| December 12 | 90.0°F (1939) | 23.0°F (1957) | 0.80 in (1911) |
| December 13 | 89.1°F (1921) | 25.0°F (1957) | 0.75 in (1963) |
| December 14 | 87.1°F (1933) | 19.9°F (1919) | 0.72 in (1976) |
| December 15 | 86.0°F (1933) | 28.0°F (1916) | 1.32 in (1937) |
| December 16 | 88.0°F (1895) | 21.0°F (1989) | 1.00 in (1996) |
| December 17 | 90.0°F (1977) | 21.9°F (1932) | 0.77 in (1995) |
| December 18 | 86.0°F (1990) | 26.1°F (1932) | 3.45 in (1993) |
| December 19 | 86.0°F (1970) | 21.9°F (1996) | 0.60 in (1991) |
| December 20 | 87.1°F (1933) | 23.0°F (1996) | 1.64 in (1928) |
| December 21 | 90.0°F (1978) | 21.0°F (1973) | 0.89 in (1940) |
| December 22 | 88.0°F (1970) | 25.0°F (1916) | 4.50 in (1991) |
| December 23 | 89.1°F (1970) | 12.0°F (1989) | 0.44 in (1957) |
| December 24 | 93.0°F (1987) | 15.1°F (1989) | 1.70 in (2006) |
| December 25 | 91.9°F (1942) | 14.0°F (1983) | 2.52 in (1938) |
| December 26 | 90.0°F (1964) | 19.9°F (1983) | 1.52 in (1938) |
| December 27 | 90.0°F (2008) | 26.1°F (1983) | 1.70 in (1978) |
| December 28 | 90.0°F (1968) | 21.9°F (1920) | 1.17 in (1994) |
| December 29 | 87.1°F (1931) | 19.9°F (1894) | 2.20 in (1960) |
| December 30 | 84.9°F (1973) | 18.0°F (1983) | 1.30 in (1958) |
| December 31 | 90.0°F (1973) | 21.9°F (1983) | 1.40 in (1935) |