In December warmest sea in Gulf of Mexico is usually observed in the following locations: Everglades, Marco Island, South Padre Island.
Table below shows the average sea water temperature for marine resorts of Gulf of Mexico in December for the last three years.
| Place name | December 2025 | December 2024 | December 2023 |
|---|---|---|---|
| Everglades | 73.9°F | 69.7°F | 73.5°F |
| Marco Island | 71.9°F | 68.0°F | 70.0°F |
| South Padre Island | 71.6°F | 71.9°F | 67.9°F |
| Naples | 71.5°F | 67.7°F | 69.8°F |
| Cape Coral | 71.3°F | 67.8°F | 68.9°F |
| Sanibel Island | 71.0°F | 67.1°F | 68.6°F |
| Siesta Key | 69.3°F | 65.6°F | 66.9°F |
| Sarasota | 69.2°F | 65.6°F | 66.8°F |
| Tampa | 68.1°F | 65.5°F | 66.2°F |
| Orlando | 67.7°F | 66.0°F | 66.4°F |
| St. Petersburg | 67.5°F | 64.3°F | 65.4°F |
| Mustang Island | 67.4°F | 67.5°F | 64.8°F |
| Daytona Beach | 67.3°F | 65.8°F | 65.5°F |
| Corpus Christi | 67.0°F | 66.5°F | 65.5°F |
| Port Aransas | 66.9°F | 67.5°F | 64.5°F |
| Clearwater Beach | 66.6°F | 62.9°F | 64.4°F |
| Fort Walton Beach | 65.9°F | 67.1°F | 65.2°F |
| Destin | 65.6°F | 66.5°F | 64.8°F |
| Grand Isle | 65.5°F | 65.9°F | 65.0°F |
| Miramar Beach | 65.4°F | 66.5°F | 64.6°F |
| Pensacola Beach | 65.0°F | 66.7°F | 64.3°F |
| Santa Rosa Beach | 64.9°F | 66.0°F | 64.0°F |
| St. Augustine | 64.5°F | 63.7°F | 64.1°F |
| Panama City Beach | 64.3°F | 65.0°F | 63.2°F |
| Gulf Shores | 63.8°F | 64.3°F | 63.1°F |
| Avery Island | 63.7°F | 60.3°F | 59.8°F |
| Orange Beach | 63.5°F | 64.1°F | 63.0°F |
| St. George Island | 63.4°F | 62.2°F | 60.9°F |
| Galveston Island | 63.3°F | 63.5°F | 61.7°F |
| Houston | 63.1°F | 62.3°F | 62.1°F |
| Pensacola | 63.0°F | 62.6°F | 61.7°F |
| Mobile | 63.0°F | 61.1°F | 60.5°F |
| Galveston | 62.4°F | 62.8°F | 61.4°F |
| Dauphin Island | 62.1°F | 60.8°F | 60.4°F |
| Jacksonville | 62.1°F | 61.5°F | 61.7°F |
| New Orleans | 61.7°F | 59.2°F | 58.4°F |
| Bay Saint Louis | 61.7°F | 57.8°F | 59.5°F |
| Ocean Springs | 61.0°F | 59.2°F | 59.9°F |
| Pass Christian | 61.0°F | 57.8°F | 59.2°F |
| Biloxi | 60.9°F | 59.1°F | 59.8°F |
| Amelia Island | 60.9°F | 60.5°F | 60.7°F |
| Gulfport | 60.6°F | 58.7°F | 59.5°F |
| Long Beach | 60.5°F | 58.1°F | 59.1°F |
| Kissimmee | 32.0°F | 32.0°F | 32.0°F |
Charts below show average sea water temperature for Gulf of Mexico resorts with the warmest sea in December.
You can also check other months of the year to see sea temperature of Gulf of Mexico resorts at that time.
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