In September warmest sea in Gulf of Mexico is usually observed in the following locations: Everglades, Naples, Mustang Island.
Table below shows the average sea water temperature for marine resorts of Gulf of Mexico in September for the last three years.
| Place name | September 2025 | September 2024 | September 2023 |
|---|---|---|---|
| Everglades | 86.2°F | 87.0°F | 86.8°F |
| Naples | 86.1°F | 87.2°F | 86.8°F |
| Mustang Island | 86.0°F | 84.6°F | 86.9°F |
| Marco Island | 86.0°F | 87.2°F | 86.7°F |
| South Padre Island | 86.0°F | 85.8°F | 86.3°F |
| Corpus Christi | 85.8°F | 84.7°F | 87.1°F |
| Port Aransas | 85.7°F | 84.6°F | 87.0°F |
| Sanibel Island | 85.7°F | 87.0°F | 86.4°F |
| Galveston Island | 85.5°F | 84.4°F | 86.6°F |
| Galveston | 85.5°F | 83.7°F | 86.5°F |
| Cape Coral | 85.2°F | 86.5°F | 86.0°F |
| Grand Isle | 85.2°F | 84.4°F | 86.5°F |
| Houston | 84.9°F | 83.4°F | 86.1°F |
| Siesta Key | 84.9°F | 86.8°F | 85.8°F |
| Sarasota | 84.8°F | 86.7°F | 85.8°F |
| Avery Island | 84.6°F | 84.1°F | 85.5°F |
| Tampa | 84.3°F | 86.0°F | 85.5°F |
| Gulf Shores | 84.3°F | 84.3°F | 85.5°F |
| New Orleans | 84.3°F | 82.9°F | 85.1°F |
| Dauphin Island | 84.2°F | 83.8°F | 84.8°F |
| St. Petersburg | 84.1°F | 86.1°F | 85.3°F |
| Pass Christian | 84.1°F | 83.2°F | 84.4°F |
| Gulfport | 84.1°F | 83.3°F | 84.3°F |
| Long Beach | 84.0°F | 83.2°F | 84.4°F |
| Orange Beach | 84.0°F | 84.1°F | 85.4°F |
| Mobile | 84.0°F | 83.5°F | 84.6°F |
| Clearwater Beach | 84.0°F | 86.2°F | 85.5°F |
| Bay Saint Louis | 84.0°F | 83.1°F | 84.4°F |
| Ocean Springs | 84.0°F | 83.2°F | 84.4°F |
| Biloxi | 84.0°F | 83.3°F | 84.3°F |
| Pensacola Beach | 83.9°F | 84.5°F | 85.0°F |
| Pensacola | 83.9°F | 84.2°F | 84.4°F |
| St. George Island | 83.5°F | 84.0°F | 84.6°F |
| Panama City Beach | 83.4°F | 84.8°F | 85.1°F |
| Santa Rosa Beach | 83.4°F | 84.8°F | 85.3°F |
| Fort Walton Beach | 83.3°F | 84.5°F | 85.0°F |
| Miramar Beach | 83.2°F | 84.6°F | 85.2°F |
| Destin | 83.1°F | 84.5°F | 85.0°F |
| Orlando | 82.8°F | 83.6°F | 83.4°F |
| Daytona Beach | 82.7°F | 83.2°F | 83.5°F |
| St. Augustine | 81.8°F | 82.7°F | 83.4°F |
| Jacksonville | 81.1°F | 82.0°F | 82.8°F |
| Amelia Island | 81.0°F | 81.8°F | 82.4°F |
| Kissimmee | 32.0°F | 32.0°F | 83.3°F |
Charts below show average sea water temperature for Gulf of Mexico resorts with the warmest sea in September.
You can also check other months of the year to see sea temperature of Gulf of Mexico resorts at that time.
Popular places:
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