December weather in Rockport, TX
The average temperature in Rockport in December is 58.0°F (48.3°F–67.8°F). Average precipitation: 1.89 inches. Average snowfall is 0.3 inches.
December is a winter month in Rockport, and is cooler than the annual average of 72.4°F. Daily temperatures swing about 19.5°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 10h 14m. For travel, December is a comfortable month to visit.
Avg High
67.8°F
Avg Low
48.3°F
Precipitation
1.89 in
Snow
0.3 in
December records in Rockport
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 80.1°F (1985) | 28.9°F (1974) | 0.90 in (2009) |
| December 2 | 80.1°F (2012) | 30.0°F (1974) | 0.93 in (2009) |
| December 3 | 84.0°F (1964) | 33.1°F (1974) | 1.70 in (1965) |
| December 4 | 82.0°F (1983) | 32.0°F (1991) | 0.47 in (1966) |
| December 5 | 87.1°F (1977) | 27.0°F (2009) | 3.39 in (1971) |
| December 6 | 81.0°F (1987) | 34.0°F (1992) | 0.83 in (1971) |
| December 7 | 80.1°F (1994) | 33.1°F (2011) | 1.28 in (1960) |
| December 8 | 82.9°F (2025) | 30.0°F (2011) | 0.69 in (2018) |
| December 9 | 82.9°F (1991) | 24.1°F (2006) | 2.74 in (1964) |
| December 10 | 82.9°F (2004) | 23.0°F (1978) | 1.23 in (1965) |
| December 11 | 80.1°F (1983) | 30.0°F (1972) | 1.44 in (1985) |
| December 12 | 80.1°F (1983) | 30.9°F (1962) | 1.25 in (1976) |
| December 13 | 80.1°F (1993) | 25.0°F (1989) | 0.82 in (2003) |
| December 14 | 80.1°F (2025) | 27.0°F (1985) | 0.67 in (1960) |
| December 15 | 82.0°F (2024) | 30.0°F (1985) | 1.38 in (1965) |
| December 16 | 82.9°F (2024) | 19.9°F (1989) | 0.70 in (2009) |
| December 17 | 82.9°F (2024) | 25.0°F (1972) | 1.40 in (2009) |
| December 18 | 82.0°F (2024) | 19.9°F (1964) | 1.75 in (1993) |
| December 19 | 84.0°F (2024) | 19.0°F (1996) | 0.62 in (1976) |
| December 20 | 78.1°F (2008) | 28.0°F (1973) | 1.23 in (1987) |
| December 21 | 82.0°F (2007) | 19.9°F (1973) | 2.20 in (2019) |
| December 22 | 86.0°F (1988) | 19.0°F (1989) | 4.08 in (1991) |
| December 23 | 87.1°F (1988) | 21.9°F (1990) | 0.26 in (1960) |
| December 24 | 82.0°F (1964) | 16.0°F (1983) | 3.10 in (1962) |
| December 25 | 82.0°F (2024) | 12.0°F (1983) | 0.30 in (2000) |
| December 26 | 82.0°F (2007) | 19.9°F (1983) | 0.84 in (1991) |
| December 27 | 82.0°F (1968) | 25.0°F (1983) | 1.71 in (1978) |
| December 28 | 84.0°F (2025) | 34.0°F (1961) | 2.76 in (1994) |
| December 29 | 86.0°F (2024) | 23.0°F (1983) | 3.16 in (1960) |
| December 30 | 79.0°F (1971) | 17.1°F (1983) | 1.20 in (2009) |
| December 31 | 80.1°F (2024) | 23.0°F (1983) | 1.80 in (1971) |