Measurements:
°C
°F
St. Simons Island
66°F
E 14 mph
Feels like: 66°F
Precip: 0%
World Resorts USA St. Simons Island Weather December Weather in St. Simons Island

St. Simons Island Weather: December

Average Day Temperature: 65.3°F
Average Night Temperature: 54.8°F
Sea Water Temperature: 61.0°F
Number of Sunny Days: 13 days
Sunshine Hours: 10.1 - 10.3 hours
Number of Rainy Days: 2 days
Precipitation Totals: 0.9 in

Air Temperature in December, °F

Select Year: 2023 2022 2021

The highest day temperature in December 2023 was 80°F. The lowest night temperature was 41°F. The average values for day and night temperatures during December were 62.2°F и 56.0°F respectivly.

St. Simons Island Water Sea Temperature in December, °F

Select Year: 2023 2022 2021

The average sea surface temperature in December 2023 for St. Simons Island was 59.4°F. The maximum and minimum values were 54.0°F and 63.2°F respectively.

Sunny, Cloudy and 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 0.9 in. It makes december one of the least rainy months of the year.

Wind Speed in December, mph

The average wind speed in December is 6.0 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

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 6.4 hours.

Best Time to Visit St. Simons Island
The most sunny months:
April 16 days
January 14 days
March 14 days
The most warm months:
July 92.5 °F
August 91.5 °F
June 90.1 °F
Warmest sea temperature:
August 88.9 °F
July 88.4 °F
September 85.8 °F
The most cold months:
January 62.7 °F
December 65.3 °F
February 67.2 °F
The most rainy months:
August 6 days
July 6 days
September 5 days
The most windy months:
April 6 mph
March 6 mph
January 6 mph

St. Simons Island on the Weather Map

USA Resorts:
NAME
Boston +48
Chicago +34
Hawaii +80
Honolulu +80
Houston +74
Las Vegas +68
Los Angeles +74
Maui +74
Miami +80
New York +48
San Diego +70
San Francisco +58
Sarasota +74
Tampa +72
Washington +48
24 Hours Weather Forecast
St. Simons Island
Local time: 16:45
21 nov, thursday
1800 66°F
E
14 mph
2100 58°F
E
11 mph
22 nov, friday
0000 56°F
E
12 mph
0300 52°F
E
13 mph
0600 48°F
E
14 mph
0900 48°F
E
14 mph
1200 54°F
SE
17 mph
1500 58°F
SE
15 mph