Florida water temperature in September
| Min (°C/°F) | Avg (°C/°F) | Max (°C/°F) | Current (°C/°F) | |
|---|---|---|---|---|
| Biscayne Bay | 28.9 (84) | 29.7 (85.5) | 30.5 (86.9) | 25.9 (78.5) |
| Captiva Island | 28.2 (82.7) | 29.4 (84.9) | 30.7 (87.2) | 25.7 (78.2) |
| Clearwater | 28.3 (82.9) | 29.2 (84.6) | 30.2 (86.3) | 25.4 (77.8) |
| Clearwater Beach | 28.3 (82.9) | 29.2 (84.6) | 30.2 (86.3) | 25.4 (77.7) |
| Cocoa Beach | 27.9 (82.2) | 28.8 (83.8) | 29.7 (85.5) | 25.6 (78.1) |
| Crystal River | 28.1 (82.5) | 29.1 (84.4) | 30.2 (86.3) | 25.6 (78.1) |
| Daytona Beach | 27.5 (81.4) | 28.4 (83.1) | 29.4 (84.8) | 23.2 (73.7) |
| Destin | 26.9 (80.4) | 28.4 (83.1) | 29.9 (85.8) | 24.3 (75.7) |
| Fort Lauderdale | 28.7 (83.6) | 29.3 (84.7) | 30 (85.9) | 25.9 (78.7) |
| Fort Myers | 28.4 (83.1) | 29.4 (84.9) | 30.4 (86.7) | 25.8 (78.4) |
| Fort Myers Beach | 28.4 (83.1) | 29.4 (84.9) | 30.4 (86.7) | 25.9 (78.5) |
| Jacksonville Beach | 26.9 (80.4) | 28.0 (82.4) | 29.1 (84.4) | 23.7 (74.7) |
| Jupiter | 28.7 (83.6) | 29.3 (84.7) | 30 (85.9) | 25.7 (78.3) |
| Key Biscayne | 28.9 (84) | 29.7 (85.5) | 30.5 (86.9) | 25.9 (78.6) |
| Key Largo | 28.9 (84) | 29.7 (85.5) | 30.5 (86.9) | 25.6 (78.1) |
| Key West | 28.7 (83.6) | 29.7 (85.5) | 30.8 (87.4) | 26.1 (78.9) |
| Manatee Bay | 28.2 (82.7) | 29.4 (84.9) | 30.7 (87.2) | 25.9 (78.5) |
| Marco Island | 28.7 (83.6) | 29.8 (85.6) | 31 (87.7) | 25.7 (78.3) |
| Miami | 28.9 (84) | 29.7 (85.5) | 30.5 (86.9) | 25.9 (78.6) |
| Miami Beach | 28.9 (84) | 29.7 (85.5) | 30.5 (86.9) | 25.9 (78.7) |
| Naples | 28.4 (83.1) | 29.4 (84.9) | 30.4 (86.7) | 25.8 (78.4) |
| North Fort Myers | 28.4 (83.1) | 29.4 (84.9) | 30.4 (86.7) | 25.8 (78.4) |
| Panama City Beach | 26.8 (80.2) | 28.2 (82.8) | 29.7 (85.4) | 25 (77) |
| Pensacola | 26.8 (80.2) | 28.3 (82.9) | 29.9 (85.7) | 25 (76.9) |
| Ponce Inlet | 27.6 (81.6) | 28.6 (83.5) | 29.7 (85.4) | 23.2 (73.8) |
| Port Richey | 28.1 (82.5) | 29.1 (84.4) | 30.2 (86.3) | 25.5 (78) |
| Port Saint Lucie | 28.2 (82.8) | 28.9 (84) | 29.6 (85.3) | 25.1 (77.1) |
| Saint Augustine | 27.5 (81.4) | 28.4 (83.1) | 29.4 (84.8) | 23.8 (74.9) |
| Saint Pete Beach | 28.3 (82.9) | 29.2 (84.6) | 30.2 (86.3) | 25.6 (78.1) |
| Saint Petersburg | 28.3 (82.9) | 29.2 (84.6) | 30.2 (86.3) | 25.7 (78.3) |
| Sanibel | 28.2 (82.7) | 29.4 (84.9) | 30.7 (87.2) | 25.8 (78.5) |
| Sarasota | 28.3 (82.9) | 29.2 (84.6) | 30.2 (86.3) | 24.7 (76.5) |
| Siesta Key | 28.3 (82.9) | 29.2 (84.6) | 30.2 (86.3) | 24.7 (76.4) |
| Sunny Isles Beach | 28.9 (84) | 29.7 (85.5) | 30.5 (86.9) | 25.9 (78.7) |
| Tampa | 28.3 (82.9) | 29.2 (84.6) | 30.2 (86.3) | 26.4 (79.5) |
| Tampa Bay | 28.3 (82.9) | 29.2 (84.6) | 30.2 (86.3) | 26.1 (79) |
| Titusville | 27.9 (82.2) | 28.8 (83.8) | 29.7 (85.5) | 24.7 (76.4) |
| Venice | 28.3 (82.9) | 29.2 (84.6) | 30.2 (86.3) | 24.8 (76.6) |
| West Palm Beach | 28.7 (83.6) | 29.3 (84.7) | 30 (85.9) | 26.1 (79) |