Galveston Weather: December
 |
Average Day Temperature: | 64.9°F |
|
Average Night Temperature: | 59.1°F |
|
Sea Water Temperature: | 64.1°F |
|
Number of Sunny Days: | 10 days |
| Sunshine Hours: | 10.3 - 10.4 hours | |
|
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 0.8 in | |
| detailed information | ||
forecast
| Galveston |
Temperature
| Galveston |
Air Temperature in December, °F
The highest day temperature in December 2025 was 76°F. The lowest night temperature was 35°F. The average values for day and night temperatures during December were 63.5°F и 57.1°F respectivly.
Galveston Water Sea Temperature in December, °F
The average sea surface temperature in December 2025 for Galveston was 64.0°F. The maximum and minimum values were 60.2°F and 69.8°F respectively.
You can expect various weather conditions during December. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in December, in
Precipitation total in December for Galveston is 0.8 in. It makes december one of the least rainy months of the year.
The average wind speed in December is 10.5 mph.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Galveston in December is 5.3 hours.
Galveston on the Weather Map
| Boston |  |
+92 |
| Chicago | |
+86 |
| Hawaii |  |
+80 |
| Houston |  |
+80 |
| Las Vegas | |
+120 |
| Los Angeles | |
+106 |
| Maui |  |
+76 |
| Miami | |
+96 |
| Myrtle Beach | |
+96 |
| New York | |
+110 |
| San Diego | |
+96 |
| San Francisco | |
+76 |
| Santa Monica | |
+84 |
| Sarasota | |
+102 |
| Tampa | |
+100 |
| 1800 |  |
86°F | W 14 mph |
| 2100 |  |
80°F | NW 18 mph |
| 0000 |  |
82°F | NW 18 mph |
| 0300 | |
88°F | NW 15 mph |
| 0600 | |
88°F | NW 16 mph |
| 0900 |  |
88°F | N 14 mph |
| 1200 | |
88°F | N 13 mph |
| 1500 | |
90°F | NW 12 mph |