The highest day temperature in December 2023 was 76°F. The lowest night temperature was 43°F. The average values for day and night temperatures during December were 62.7°F и 56.9°F respectivly.

The average sea surface temperature in December 2023 for St. George Island was 62.1°F. The maximum and minimum values were 57.2°F and 67.0°F respectively.

Most of the days in December are cloudy but you can also expect sunny or gloomy days.

Precipitation total in December for St. George Island is 1.3 in.

The average wind speed in December is 8.7 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. George Island in December is 6.4 hours.