Measurements:
°C
°F
CURRENT WEATHER
14:22
St. Simons Island
94°F
NW 12 mph
Feels like: 110°F
Precip: 4%
World Resorts USA St. Simons Island Weather

7 Day Weather Forecast

08.05
wed
DAY
96°F
NW 9 mph
precip
5%
NIGHT
84°F
NW 8 mph
precip
11%
08.06
thu
DAY
92°F
NW 6 mph
precip
7%
NIGHT
82°F
NW 6 mph
precip
14%
08.07
fri
DAY
92°F
W 9 mph
precip
24%
NIGHT
84°F
NW 8 mph
precip
12%
08.08
sat
DAY
92°F
NW 9 mph
precip
19%
NIGHT
84°F
NW 9 mph
precip
23%
08.09
sun
DAY
92°F
NW 6 mph
precip
4%
NIGHT
84°F
N 9 mph
precip
43%
08.10
mon
DAY
92°F
N 9 mph
precip
6%
NIGHT
84°F
N 7 mph
precip
12%
08.11
tue
DAY
94°F
NE 3 mph
precip
5%
NIGHT
86°F
N 9 mph
precip
36%

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

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for St. Simons Island was 29.8°F. The maximum and minimum values were 28.6°F and 30.9°F respectively.

St. Simons Island on the Weather Map

Best Time to Visit St. Simons Island
The most sunny months:
January 15 days
October 15 days
April 15 days
The most warm months:
July 93.4 °F
August 91.0 °F
June 90.3 °F
Warmest sea temperature:
August 89.0 °F
July 88.6 °F
September 85.5 °F
The most cold months:
January 60.4 °F
December 63.8 °F
February 65.7 °F
The most rainy months:
August 5 days
July 4 days
September 4 days
The most windy months:
February 7 mph
January 7 mph
April 7 mph
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