Current sea water temperature:
+59.2°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 18 | 59.2°F | December 13 | 61.5°F |
| December 17 | 60.8°F | December 12 | 62.4°F |
| December 16 | 62.6°F | December 11 | 62.1°F |
| December 15 | 63.0°F | December 10 | 63.5°F |
| December 14 | 62.8°F | December 9 | 64.6°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
December
December
| 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: 21:00
December 19, friday
0000
68°F
NE
9 mph
9 mph
0300
68°F
E
12 mph
12 mph
0600
66°F
SE
14 mph
14 mph
0900
63°F
S
15 mph
15 mph
1200
64°F
S
12 mph
12 mph
1500
68°F
S
11 mph
11 mph
1800
64°F
S
11 mph
11 mph
2100
61°F
S
7 mph
7 mph
