Average sea water temperature in December:
+66.0°F
| Minimum sea water temperature in December: | 72.7°F |
| Maximum sea water temperature in December: | 56.8°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 65.9°F. The highest and lowest sea temperatures during the month were 70.7°F and 61.3°F.
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| Grand Isle |
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| Grand Isle |
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| Grand Isle |
14 days
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| Grand Isle |
Monthly sea water temperature in Grand Isle, °F
Which USA resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Kailua Kona | 79.2°F | 78.3°F |
| Fort Lauderdale | 78.7°F | 77.6°F |
| Honolulu | 78.6°F | 78.3°F |
| Hawaii | 78.5°F | 78.3°F |
| Kauai | 78.2°F | 76.0°F |
| Princeville | 78.2°F | 76.1°F |
| Maui | 78.0°F | 77.8°F |
| Miami Beach | 77.4°F | 75.9°F |
| Oahu | 77.1°F | 77.2°F |
| Miami | 75.5°F | 73.0°F |
| Naples | 71.5°F | 67.7°F |
| Sarasota | 69.2°F | 65.6°F |
| Tampa | 68.3°F | 65.5°F |
| Orlando | 67.6°F | 66.0°F |
| Destin | 65.7°F | 66.5°F |
| Panama City Beach | 64.4°F | 65.0°F |
| Houston | 63.4°F | 62.3°F |
| Long Beach (CA) | 63.4°F | 57.8°F |
| Malibu | 63.3°F | 58.1°F |
| Irvine | 63.1°F | 59.0°F |
Best time for vacation in Grand Isle
Grand Isle on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Grand Isle
Local time: 04:02
July 03, friday
0600
84°F
W
2 mph
2 mph
0900
84°F
W
6 mph
6 mph
1200
84°F
NW
7 mph
7 mph
1500
86°F
NW
11 mph
11 mph
1800
84°F
NW
11 mph
11 mph
2100
84°F
N
7 mph
7 mph
July 04, saturday
0000
84°F
N
5 mph
5 mph
0300
82°F
N
4 mph
4 mph
