St. Augustine Weather: December
 |
Average Day Temperature: | 68.2°F |
|
Average Night Temperature: | 57.9°F |
|
Sea Water Temperature: | 66.4°F |
|
Number of Sunny Days: | 13 days |
| Sunshine Hours: | 10.2 - 10.4 hours | |
|
Number of Rainy Days: | 1 day |
| Precipitation Totals: | 0.6 in | |
| detailed information | ||
forecast
| St. Augustine |
Temperature
| St. Augustine |
Air Temperature in December, °F
The highest day temperature in December 2025 was 79°F. The lowest night temperature was 34°F. The average values for day and night temperatures during December were 67.0°F и 55.1°F respectivly.
St. Augustine Water Sea Temperature in December, °F
The average sea surface temperature in December 2025 for St. Augustine was 66.1°F. The maximum and minimum values were 63.0°F and 70.0°F respectively.
Most of the days in December are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in December, in
Precipitation total in December for St. Augustine is 0.6 in.
The average wind speed in December is 6.8 mph. This value is relatively stable throughout the year.
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 St. Augustine in December is 6.0 hours.
St. Augustine on the Weather Map
| Boston |  |
+94 |
| Chicago | |
+88 |
| Hawaii |  |
+80 |
| Houston |  |
+90 |
| Las Vegas | |
+120 |
| Los Angeles | |
+106 |
| Maui |  |
+76 |
| Miami | |
+100 |
| Myrtle Beach | |
+96 |
| New York | |
+114 |
| San Diego | |
+96 |
| San Francisco | |
+76 |
| Santa Monica | |
+84 |
| Sarasota | |
+102 |
| Tampa | |
+100 |
| 1500 |  |
98°F | E 7 mph |
| 1800 |  |
90°F | E 11 mph |
| 2100 |  |
90°F | E 9 mph |
| 0000 | |
88°F | E 8 mph |
| 0300 | |
84°F | E 6 mph |
| 0600 | |
82°F | E 7 mph |
| 0900 | |
86°F | SE 8 mph |
| 1200 | |
94°F | SE 3 mph |