World Resorts USA St. George Island Weather

St. George Island sea water temperature

Current sea water temperature:
+64.6°F
Minimum sea water temperature in January: 70.0°F
Maximum sea water temperature in January: 51.1°F
Average sea water temperature in January: 59.6°F

Sea water temperature for the last 10 days:

January 12 64.6°F January 7 62.8°F
January 11 65.5°F January 6 61.2°F
January 10 63.7°F January 5 60.1°F
January 9 62.1°F January 4 61.2°F
January 8 63.1°F January 3 59.5°F

When is the warmest sea in St. George Island?

Based on the data about daily sea water temperature for the last three years the warmest sea in St. George Island was noticed in August, July and September.

Monthly Sea Temperatures in St. George Island, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 86.5°F. The highest and lowest sea temperatures during the month were 88.0°F and 84.7°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 86.4°F. The highest and lowest sea temperatures during the month were 88.9°F and 85.1°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 83.5°F. The highest and lowest sea temperatures during the month were 85.1°F and 81.7°F.

Best time for vacation in St. George Island

Sunniest months:
October 20 days
March 16 days
November 15 days
Warmest months:
July 86.8 °F
August 86.6 °F
June 84.8 °F
Warmest sea temp:
August 86.5 °F
July 85.5 °F
September 83.8 °F
Coldest months:
January 59.0 °F
December 62.5 °F
February 63.2 °F
Rainiest months:
August 5 days
April 4 days
July 4 days
Windiest months:
January 9.5 mph
March 9.0 mph
November 8.9 mph

St. George Island on a weather map

St. George Island
+43°F
S 9 mph
Feels like: +39°F
Precip.: 0%
Places in USA:
Name
°F
+34°F
+72°F
+72°F
+52°F
+61°F
+66°F
+75°F
+66°F
+30°F
+59°F
+50°F
+59°F
+55°F
+50°F
+34°F
24 Hours Forecast
St. George Island
Local time: 00:05
January 13, tuesday
0300
39°F
SW
8 mph
0600
36°F
SW
7 mph
0900
41°F
S
6 mph
1200
50°F
S
6 mph
1500
55°F
S
2 mph
1800
57°F
NE
2 mph
2100
54°F
SE
6 mph
January 14, wednesday
0000
50°F
SE
5 mph
Units of measurement: °C / °F