In September warmest sea in Gulf of Mexico is usually observed in the following locations: Marco Island, Sanibel Island, Naples.
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 2026 | September 2025 | September 2024 |
|---|---|---|---|
| Marco Island | 87.1°F | 86.0°F | 87.2°F |
| Sanibel Island | 87.1°F | 85.7°F | 87.0°F |
| Naples | 87.0°F | 86.1°F | 87.2°F |
| Galveston | 87.0°F | 85.5°F | 83.7°F |
| Houston | 86.9°F | 84.9°F | 83.4°F |
| Siesta Key | 86.9°F | 84.9°F | 86.8°F |
| Galveston Island | 86.9°F | 85.5°F | 84.4°F |
| Corpus Christi | 86.8°F | 85.8°F | 84.7°F |
| Sarasota | 86.8°F | 84.8°F | 86.7°F |
| Grand Isle | 86.5°F | 85.2°F | 84.4°F |
| Mustang Island | 86.4°F | 86.0°F | 84.6°F |
| Avery Island | 86.4°F | 84.6°F | 84.1°F |
| New Orleans | 86.4°F | 84.3°F | 82.9°F |
| Gulfport | 86.4°F | 84.1°F | 83.3°F |
| Port Aransas | 86.4°F | 85.7°F | 84.6°F |
| Cape Coral | 86.3°F | 85.2°F | 86.5°F |
| Long Beach | 86.2°F | 84.0°F | 83.2°F |
| Gulf Shores | 86.1°F | 84.3°F | 84.3°F |
| Pass Christian | 86.1°F | 84.1°F | 83.2°F |
| Dauphin Island | 86.1°F | 84.2°F | 83.8°F |
| St. Petersburg | 86.1°F | 84.1°F | 86.1°F |
| Biloxi | 86.1°F | 84.0°F | 83.3°F |
| Ocean Springs | 86.1°F | 84.0°F | 83.2°F |
| Everglades | 86.0°F | 86.2°F | 87.0°F |
| Orange Beach | 86.0°F | 84.0°F | 84.1°F |
| Mobile | 86.0°F | 84.0°F | 83.5°F |
| Pensacola Beach | 85.9°F | 83.9°F | 84.5°F |
| Tampa | 85.9°F | 84.3°F | 86.0°F |
| Clearwater Beach | 85.9°F | 84.0°F | 86.2°F |
| Bay Saint Louis | 85.9°F | 84.0°F | 83.1°F |
| Panama City Beach | 85.8°F | 83.4°F | 84.8°F |
| Fort Walton Beach | 85.7°F | 83.3°F | 84.5°F |
| Pensacola | 85.7°F | 83.9°F | 84.2°F |
| Miramar Beach | 85.6°F | 83.2°F | 84.6°F |
| Destin | 85.6°F | 83.1°F | 84.5°F |
| Santa Rosa Beach | 85.5°F | 83.4°F | 84.8°F |
| St. George Island | 85.2°F | 83.5°F | 84.0°F |
| South Padre Island | 84.7°F | 86.0°F | 85.8°F |
| Amelia Island | 83.1°F | 81.0°F | 81.8°F |
| Jacksonville | 82.9°F | 81.1°F | 82.0°F |
| St. Augustine | 82.9°F | 81.8°F | 82.7°F |
| Orlando | 82.7°F | 82.8°F | 83.6°F |
| Daytona Beach | 82.5°F | 82.7°F | 83.2°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 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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