Measurements:
°C
°F
St. George Island
70°F
N 6 mph
Feels like: 70°F
Precip: 0%
World Resorts USA St. George Island Weather

St. George Island Sea Water Temperature

Current Sea Water Temperature:
+72.0°F
Maximum Sea Water Temperature in March: 79.2°F
Minimum Sea Water Temperature in March: 61.2°F
Average water temperature in March: 68.3°F

Sea Water Temperature for the Last 10 Days:

March 13 72.0°F March 08 68.6°F
March 12 71.6°F March 07 68.0°F
March 11 70.4°F March 06 66.8°F
March 10 69.4°F March 05 66.0°F
March 09 71.0°F March 04 65.0°F

When is the Warmest Sea for St. George Island?

According to our data for the last three years for St. George Island the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for St. George Island was 90.5°F. The maximum and minimum values were 88.6°F and 92.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for St. George Island was 90.4°F. The maximum and minimum values were 89.0°F and 93.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for St. George Island was 87.3°F. The maximum and minimum values were 85.2°F and 89.0°F respectively.

Best Time to Visit St. George Island
The most sunny months:
October 20 days
March 16 days
November 15 days
The most warm months:
July 90.9 °F
August 90.7 °F
June 88.6 °F
Warmest sea temperature:
August 90.5 °F
July 89.5 °F
September 87.6 °F
The most cold months:
January 59.9 °F
December 63.9 °F
February 64.5 °F
The most rainy months:
August 5 days
April 4 days
July 4 days
The most windy months:
January 9 mph
March 9 mph
November 9 mph

St. George Island on the Weather Map

USA Resorts:
NAME
Chicago +42
Hawaii +76
Honolulu +76
Houston +82
Las Vegas +96
Los Angeles +100
Maui +70
Miami +84
Miami Beach +82
New York +42
San Diego +94
San Francisco +72
Sarasota +80
Tampa +80
Washington +56
24 Hours Weather Forecast
St. George Island
Local time: 17:06
13 mar, friday
1800 70°F
N
6 mph
2100 64°F
E
6 mph
14 mar, saturday
0000 58°F
SE
5 mph
0300 56°F
S
5 mph
0600 58°F
S
5 mph
0900 64°F
SW
5 mph
1200 70°F
W
8 mph
1500 74°F
NW
9 mph