Current sea water temperature:
+64.8°F
| Minimum sea water temperature in December: | 68.7°F |
| Maximum sea water temperature in December: | 54.9°F |
| Average sea water temperature in December: | 63.2°F |
| more information | |
14 days
forecast
forecast
| St. George Island |
monthly
weather
weather
| St. George Island |
Sea water temperature for the last 10 days:
| December 29 | 64.8°F | December 24 | 62.4°F |
| December 28 | 64.6°F | December 23 | 61.0°F |
| December 27 | 63.3°F | December 22 | 60.1°F |
| December 26 | 63.0°F | December 21 | 60.6°F |
| December 25 | 63.0°F | December 20 | 61.5°F |
Monthly sea water temperature, °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.
current
weather
weather
| St. George Island |
weather in
January
January
| St. George Island |
Best time for vacation in St. George Island
St. George Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
St. George Island
Local time: 00:39
December 30, tuesday
0300
41°F
S
13 mph
13 mph
0600
37°F
S
13 mph
13 mph
0900
36°F
S
12 mph
12 mph
1200
43°F
S
13 mph
13 mph
1500
48°F
S
12 mph
12 mph
1800
48°F
SE
11 mph
11 mph
2100
45°F
SE
8 mph
8 mph
December 31, wednesday
0000
41°F
SE
10 mph
10 mph
