St. Simons Island Weather: December
 |
Average Day Temperature: | 64.1°F |
|
Average Night Temperature: | 54.4°F |
|
Sea Water Temperature: | 60.6°F |
|
Number of Sunny Days: | 13 days |
| Sunshine Hours: | 10.1 - 10.3 hours | |
|
Number of Rainy Days: | 1 day |
| Precipitation Totals: | 0.7 in | |
| detailed information | ||
forecast
| St. Simons Island |
Temperature
| St. Simons Island |
Air Temperature in December, °F
| Day Temperature | Night Temperature |
The highest day temperature in December 2024 was 70°F. The lowest night temperature was 37°F. The average values for day and night temperatures during December were 59.2°F и 53.1°F respectivly.
St. Simons Island Water Sea Temperature in December, °F
The average sea surface temperature in December 2024 for St. Simons Island was 58.8°F. The maximum and minimum values were 55.4°F and 65.4°F respectively.
| Sunny days | |
| Cloudy days | |
| Gloomy days |
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. Simons Island is 0.7 in. It makes december one of the least rainy months of the year.
The average wind speed in December is 6.7 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. Simons Island in December is 6.1 hours.
St. Simons Island on the Weather Map
| Boston |  |
+44 |
| Chicago |  |
+36 |
| Hawaii |  |
+78 |
| Honolulu | |
+78 |
| Houston | |
+82 |
| Las Vegas | |
+86 |
| Los Angeles |  |
+72 |
| Miami | |
+78 |
| New York | |
+46 |
| Orlando | |
+80 |
| San Diego | |
+68 |
| San Francisco | |
+54 |
| Sarasota | |
+82 |
| Tampa | |
+82 |
| Washington | |
+56 |
| 1500 |  |
72°F | W 6 mph |
| 1800 |  |
70°F | W 9 mph |
| 2100 |  |
64°F | W 7 mph |
| 0000 | |
60°F | W 6 mph |
| 0300 | |
60°F | SW 4 mph |
| 0600 |  |
60°F | SW 2 mph |
| 0900 |  |
66°F | W 2 mph |
| 1200 | |
74°F | NW 4 mph |