December weather in National City, CA
The average temperature in National City in December is 56.2°F (46.0°F–66.5°F). Average precipitation: 1.58 inches.
December is a winter month in National City, and is cooler than the annual average of 63.3°F. Daily temperatures swing about 20.5°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 9h 52m. For travel, December is a comfortable month to visit.
Avg High
66.5°F
Avg Low
46.0°F
Precipitation
1.58 in
Daylight
9h 52m
December records in National City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 81.0°F (1988) | 37.0°F (1931) | 1.27 in (1925) |
| December 2 | 82.0°F (1959) | 36.0°F (1934) | 0.82 in (1922) |
| December 3 | 80.1°F (1959) | 37.0°F (1934) | 0.85 in (1961) |
| December 4 | 82.0°F (2006) | 37.9°F (1933) | 0.74 in (2014) |
| December 5 | 80.1°F (2023) | 35.1°F (1948) | 2.04 in (1947) |
| December 6 | 84.9°F (1965) | 35.1°F (2011) | 1.86 in (2018) |
| December 7 | 84.0°F (1990) | 30.0°F (1960) | 1.56 in (2009) |
| December 8 | 82.0°F (1989) | 30.0°F (1978) | 1.60 in (1926) |
| December 9 | 84.0°F (2025) | 30.9°F (1951) | 1.38 in (1926) |
| December 10 | 84.0°F (2025) | 33.1°F (1951) | 2.02 in (1943) |
| December 11 | 81.0°F (2017) | 36.0°F (1947) | 1.92 in (1943) |
| December 12 | 84.0°F (2010) | 30.9°F (1949) | 0.98 in (2014) |
| December 13 | 82.9°F (1998) | 30.9°F (1949) | 1.61 in (2012) |
| December 14 | 81.0°F (2010) | 33.1°F (1987) | 0.88 in (2021) |
| December 15 | 82.0°F (1983) | 33.1°F (1987) | 0.70 in (1965) |
| December 16 | 82.9°F (1958) | 0.0°F (2004) | 1.04 in (2016) |
| December 17 | 82.0°F (1998) | 34.0°F (1927) | 1.74 in (2008) |
| December 18 | 82.9°F (2000) | 32.0°F (1927) | 1.75 in (1921) |
| December 19 | 82.0°F (1985) | 34.0°F (1924) | 1.30 in (1967) |
| December 20 | 80.1°F (1985) | 36.0°F (1928) | 1.01 in (1921) |
| December 21 | 84.0°F (2005) | 32.0°F (1968) | 1.99 in (2010) |
| December 22 | 75.9°F (1989) | 30.9°F (1927) | 1.77 in (2010) |
| December 23 | 82.0°F (1989) | 32.0°F (1990) | 0.99 in (1948) |
| December 24 | 80.1°F (1989) | 32.0°F (1924) | 3.67 in (1940) |
| December 25 | 82.9°F (1925) | 28.0°F (1987) | 3.05 in (1921) |
| December 26 | 82.0°F (2022) | 30.9°F (1953) | 1.13 in (1984) |
| December 27 | 80.1°F (2013) | 33.1°F (1969) | 1.71 in (1936) |
| December 28 | 82.9°F (1956) | 30.0°F (1954) | 0.81 in (1931) |
| December 29 | 86.0°F (1963) | 32.0°F (1954) | 0.68 in (1977) |
| December 30 | 81.0°F (1997) | 34.0°F (1918) | 0.74 in (1936) |
| December 31 | 79.0°F (1963) | 34.0°F (1932) | 0.91 in (1951) |