At this moment warmest sea in Gulf of Mexico was observed in the following locations: Key West, Cayo Largo, Everglades.
You can find the full list of Gulf of Mexico marine locations in the table below. It shows current sea temperature values and averages for current and upcoming months.
| Place name | Current sea temp |
September 2025 | October 2025 |
|---|---|---|---|
| Key West | 89.4°F | 86.9°F | 83.8°F |
| Cayo Largo | 89.1°F | 88.1°F | 86.2°F |
| Everglades | 88.0°F | 86.2°F | 82.5°F |
| Chetumal | 88.0°F | 86.8°F | 85.9°F |
| Pinar del Rio | 87.8°F | 87.3°F | 85.2°F |
| Sanibel Island | 87.8°F | 85.7°F | 81.6°F |
| Houston | 87.8°F | 84.9°F | 80.4°F |
| Varadero | 87.6°F | 86.6°F | 85.1°F |
| Galveston Island | 87.6°F | 85.5°F | 81.1°F |
| George Town | 87.6°F | 87.4°F | 86.6°F |
| Galveston | 87.4°F | 85.5°F | 80.8°F |
| Siesta Key | 87.4°F | 84.9°F | 80.4°F |
| Marco Island | 87.4°F | 86.0°F | 82.0°F |
| Grand Cayman | 87.4°F | 87.4°F | 86.6°F |
| Campeche | 87.4°F | 87.0°F | 86.0°F |
| Sarasota | 87.4°F | 84.8°F | 80.2°F |
| Havana | 87.3°F | 86.1°F | 85.1°F |
| Corpus Christi | 87.3°F | 85.8°F | 82.2°F |
| Ambergis Caye | 87.1°F | 86.6°F | 86.1°F |
| Veracruz | 87.1°F | 86.3°F | 84.8°F |
| Boca del Rio | 87.1°F | 86.3°F | 84.8°F |
| Cape Coral | 87.1°F | 85.2°F | 81.1°F |
| Naples | 87.1°F | 86.1°F | 81.9°F |
| Ciudad del Carmen | 86.9°F | 87.1°F | 85.8°F |
| Playa Chachalacas | 86.7°F | 86.3°F | 84.8°F |
| Los Medanos | 86.7°F | 86.3°F | 84.8°F |
| Tampa | 86.7°F | 84.3°F | 79.4°F |
| Grand Isle | 86.5°F | 85.2°F | 80.1°F |
| Cozumel | 86.5°F | 85.9°F | 85.7°F |
| St. Petersburg | 86.5°F | 84.1°F | 79.4°F |
| Clearwater Beach | 86.5°F | 84.0°F | 78.9°F |
| Fort Walton Beach | 86.4°F | 83.3°F | 79.2°F |
| Avery Island | 86.4°F | 84.6°F | 78.6°F |
| New Orleans | 86.2°F | 84.3°F | 77.7°F |
| Matanzas | 86.2°F | 85.8°F | 84.8°F |
| Dauphin Island | 86.2°F | 84.2°F | 77.9°F |
| Gulf Shores | 86.2°F | 84.3°F | 78.9°F |
| Destin | 86.2°F | 83.1°F | 79.0°F |
| Puerto Aventuras | 86.0°F | 85.7°F | 85.6°F |
| Mahahual | 86.0°F | 86.0°F | 85.9°F |
| Playa del Carmen | 86.0°F | 85.8°F | 85.6°F |
| Miramar Beach | 86.0°F | 83.2°F | 79.1°F |
| Costa de Oro | 86.0°F | 86.2°F | 84.5°F |
| Riviera Maya | 86.0°F | 85.7°F | 85.5°F |
| Coatzacoalcos | 85.8°F | 86.2°F | 83.7°F |
| Tulum | 85.8°F | 85.6°F | 85.5°F |
| Panama City Beach | 85.8°F | 83.4°F | 79.2°F |
| Mobile | 85.8°F | 84.0°F | 78.1°F |
| Puerto Morelos | 85.8°F | 85.6°F | 85.2°F |
| Cancun | 85.6°F | 85.0°F | 84.8°F |
| Pensacola Beach | 85.6°F | 83.9°F | 79.1°F |
| Mustang Island | 85.6°F | 86.0°F | 82.5°F |
| Port Aransas | 85.6°F | 85.7°F | 82.3°F |
| Gulfport | 85.6°F | 84.1°F | 78.8°F |
| Long Beach | 85.6°F | 84.0°F | 77.9°F |
| Santa Rosa Beach | 85.5°F | 83.4°F | 78.9°F |
| Ocean Springs | 85.5°F | 84.0°F | 77.5°F |
| Pass Christian | 85.5°F | 84.1°F | 77.8°F |
| Bay Saint Louis | 85.3°F | 84.0°F | 77.8°F |
| Biloxi | 85.3°F | 84.0°F | 77.5°F |
| Tampico | 85.3°F | 86.0°F | 84.5°F |
| Pensacola | 85.3°F | 83.9°F | 78.0°F |
| St. George Island | 85.1°F | 83.5°F | 77.7°F |
| Orange Beach | 85.1°F | 84.0°F | 78.6°F |
| Ciudad Madero | 84.9°F | 86.1°F | 84.6°F |
| Merida | 84.9°F | 84.5°F | 84.8°F |
| Monte Gordo | 84.6°F | 85.9°F | 84.7°F |
| Casitas | 84.6°F | 85.9°F | 84.7°F |
| La Vigueta | 84.4°F | 85.9°F | 84.8°F |
| Playa Oriente | 84.4°F | 85.9°F | 84.8°F |
| Isla Mujeres | 84.2°F | 84.7°F | 85.0°F |
| South Padre Island | 83.7°F | 86.0°F | 84.0°F |
| Tecolutla | 83.7°F | 85.9°F | 84.8°F |
| Orlando | 82.0°F | 82.8°F | 78.4°F |
| Amelia Island | 81.7°F | 81.0°F | 75.4°F |
| St. Augustine | 81.5°F | 81.8°F | 77.1°F |
| Jacksonville | 81.3°F | 81.1°F | 75.9°F |
| Daytona Beach | 81.1°F | 82.7°F | 78.4°F |
| La Pesca | 81.0°F | 85.8°F | 84.5°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.
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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