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: 83.5°F 78.0°F 69.5°F
Average night temperature:
Average night temperature: 73.2°F 66.4°F 59.8°F
Sea water temperature:
Sea water temperature: 82.3°F 74.6°F 67.5°F
Number of sunny days:
Number of sunny days: 9 days 15 days 12 days
Day length:
Day length: 11.9 - 12.8 h. 10.9 - 11.9 h. 10.3 - 10.9 h.
Number of rainy days:
Number of rainy days: 5 days 1 day 2 days
Precipitation totals:
Precipitation totals: 1.9 in. 0.5 in. 0.9 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:
April 16 days
October 15 days
January 14 days
Warmest months:
July 88.4 °F
August 87.9 °F
June 86.1 °F
Warmest sea temp:
August 85.2 °F
July 84.4 °F
September 82.3 °F
Coldest months:
January 61.5 °F
December 63.8 °F
February 65.5 °F
Rainiest months:
August 6 days
July 6 days
September 5 days
Windiest months:
April 6.6 mph
March 6.4 mph
January 6.4 mph

St. Simons Island on a weather map

St. Simons Island
+72°F
E 5 mph
Feels like: +77°F
Precip.: 100%
Places in USA:
Name
°F
+52°F
+61°F
+73°F
+73°F
+81°F
+61°F
+84°F
+59°F
+81°F
+63°F
+54°F
+81°F
+82°F
+77°F
+68°F
24 Hours Forecast
St. Simons Island
Local time: 23:53
May 19, sunday
0000
72°F
E
5 mph
0300
72°F
E
7 mph
0600
70°F
E
8 mph
0900
73°F
E
8 mph
1200
82°F
E
6 mph
1500
84°F
SE
2 mph
1800
81°F
S
6 mph
2100
73°F
SW
12 mph
Units of measurement: °C / °F