Measurements:
°C
°F
CURRENT WEATHER
01:02
St. Simons Island
74°F
SW 7 mph
Feels like: 80°F
Precip: 60%
World Resorts USA St. Simons Island Weather

7 Day Weather Forecast

10.06
tue
DAY
74°F
SW 7 mph
precip
50%
NIGHT
74°F
SW 8 mph
precip
48%
10.07
wed
DAY
82°F
SW 12 mph
precip
22%
NIGHT
70°F
S 4 mph
precip
26%
10.08
thu
DAY
80°F
SW 9 mph
precip
16%
NIGHT
72°F
SW 4 mph
precip
28%
10.09
fri
DAY
76°F
SW 7 mph
precip
30%
NIGHT
76°F
W 9 mph
precip
78%
10.10
sat
DAY
86°F
NW 7 mph
precip
45%
NIGHT
78°F
NW 4 mph
precip
41%
10.11
sun
DAY
88°F
NE 7 mph
precip
12%
NIGHT
74°F
E 4 mph
precip
15%
10.12
mon
DAY
82°F
SE 6 mph
precip
12%
NIGHT
70°F
S 2 mph
precip
10%

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

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for St. Simons Island was 23.6°F. The maximum and minimum values were 20.1°F and 27.1°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 91.5 °F
June 90.3 °F
Warmest sea temperature:
August 89.0 °F
July 88.6 °F
September 85.7 °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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