Average sea water temperature in December:
+63.2°F
| Minimum sea water temperature in December: | 68.7°F |
| Maximum sea water temperature in December: | 54.9°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 63.4°F. The highest and lowest sea temperatures during the month were 68.0°F and 59.2°F.
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| St. George Island |
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| St. George Island |
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| St. George Island |
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| St. George Island |
Monthly sea water temperature in St. George Island, °F
Which USA resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| West Palm Beach | 79.2°F | 78.4°F |
| Fort Lauderdale | 78.9°F | 77.6°F |
| Honolulu | 78.7°F | 78.3°F |
| Hawaii | 78.6°F | 78.3°F |
| Kauai | 78.4°F | 76.0°F |
| Maui | 78.2°F | 77.8°F |
| Miami Beach | 77.8°F | 75.9°F |
| Oahu | 77.3°F | 77.2°F |
| Islamorada | 77.0°F | 73.4°F |
| Key Largo | 76.9°F | 73.1°F |
| Key West | 76.4°F | 72.6°F |
| Miami | 76.1°F | 73.0°F |
| Everglades | 74.2°F | 69.7°F |
| Marco Island | 72.1°F | 68.0°F |
| Naples | 71.7°F | 67.7°F |
| Cape Coral | 71.5°F | 67.8°F |
| South Padre Island | 71.4°F | 71.9°F |
| Sanibel Island | 71.1°F | 67.1°F |
| Siesta Key | 69.5°F | 65.6°F |
| Cocoa Beach | 69.5°F | 66.6°F |
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: 02:38
December 23, tuesday
0300
55°F
W
9 mph
9 mph
0600
55°F
W
7 mph
7 mph
0900
61°F
W
8 mph
8 mph
1200
64°F
W
9 mph
9 mph
1500
68°F
NW
7 mph
7 mph
1800
66°F
NW
6 mph
6 mph
2100
64°F
NW
4 mph
4 mph
December 24, wednesday
0000
61°F
S
2 mph
2 mph
