World Resorts USA St. Simons Island Weather

Autumn weather in St. Simons Island

Weather in St. Simons Island in Autumn

September October November
Average day temperature:
Average day temperature: 82.9°F 76.9°F 69.8°F
Average night temperature:
Average night temperature: 74.0°F 66.6°F 59.6°F
Sea water temperature:
Sea water temperature: 82.0°F 74.4°F 67.3°F
Number of sunny days:
Number of sunny days: 9 days 15 days 14 days
Day length:
Day length: 11.9 - 12.8 h. 10.9 - 11.8 h. 10.3 - 10.9 h.
Number of rainy days:
Number of rainy days: 4 days 1 day 1 day
Precipitation totals:
Precipitation totals: 1.6 in. 0.4 in. 0.6 in.

Day & Night air temperature, °F

Sea water temperature, °F

Precipitation total, in.

Sunny, partly cloudy and cloudy days
Wind speed, mph
Average sunny hours

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

Best time for vacation in St. Simons Island

Sunniest months:
October 15 days
January 14 days
March 14 days
Warmest months:
July 88.3 °F
August 86.9 °F
June 86.1 °F
Warmest sea temp:
August 85.1 °F
July 84.6 °F
September 82.0 °F
Coldest months:
January 59.8 °F
December 62.7 °F
February 64.8 °F
Rainiest months:
August 5 days
July 5 days
September 4 days
Windiest months:
December 6.7 mph
October 6.7 mph
January 6.7 mph

St. Simons Island on a weather map

St. Simons Island
+52°F
NW 3 mph
Feels like: +52°F
Precip.: 83%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+45°F
+55°F
+70°F
+77°F
+70°F
+23°F
+57°F
+48°F
+63°F
+63°F
+46°F
+5°F
24 Hours Forecast
St. Simons Island
Local time: 01:04
December 05, friday
0300
57°F
NW
6 mph
0600
59°F
N
6 mph
0900
61°F
NE
4 mph
1200
64°F
NE
5 mph
1500
63°F
NE
4 mph
1800
57°F
S
11 mph
2100
55°F
S
7 mph
December 06, saturday
0000
55°F
SE
4 mph
Units of measurement: °C / °F