Average sea water temperature in December:
+66.8°F
| Minimum sea water temperature in December: | 73.4°F |
| Maximum sea water temperature in December: | 57.7°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 67.9°F. The highest and lowest sea temperatures during the month were 70.0°F and 64.8°F.
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| St. Petersburg |
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Monthly sea water temperature in St. Petersburg, °F
Which USA resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Kailua Kona | 79.4°F | 78.3°F |
| Fort Lauderdale | 79.1°F | 77.6°F |
| Honolulu | 78.8°F | 78.3°F |
| Hawaii | 78.7°F | 78.3°F |
| Kauai | 78.6°F | 76.0°F |
| Maui | 78.2°F | 77.8°F |
| Miami Beach | 78.0°F | 75.9°F |
| Oahu | 77.4°F | 77.2°F |
| Islamorada | 77.2°F | 73.4°F |
| Key Largo | 77.2°F | 73.1°F |
| Key West | 76.7°F | 72.6°F |
| Miami | 76.3°F | 73.0°F |
| Everglades | 74.6°F | 69.7°F |
| Naples | 72.0°F | 67.7°F |
| South Padre Island | 71.9°F | 71.9°F |
| Cape Coral | 71.8°F | 67.8°F |
| Sanibel Island | 71.5°F | 67.1°F |
| Siesta Key | 70.0°F | 65.6°F |
| Sarasota | 69.8°F | 65.6°F |
| Cocoa Beach | 69.7°F | 66.6°F |
Best time for vacation in St. Petersburg
St. Petersburg on a weather map
Places in USA:
Name
°F
24 Hours Forecast
St. Petersburg
Local time: 21:03
December 19, friday
0000
72°F
N
13 mph
13 mph
0300
72°F
NE
12 mph
12 mph
0600
68°F
E
10 mph
10 mph
0900
70°F
E
9 mph
9 mph
1200
73°F
SE
11 mph
11 mph
1500
73°F
SE
15 mph
15 mph
1800
70°F
SE
16 mph
16 mph
2100
66°F
SE
15 mph
15 mph
