Swimming in Florida in september 2025 Sea temperature by city in september
Do you want to go to the beach in Florida in september 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in september in Florida by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Florida in september 2025
Here, find the average sea temperature in Florida in september in several coastal cities.
86°F
min: 84°F / max: 87°F
86°F
min: 84°F / max: 88°F
83°F
min: 82°F / max: 85°F
85°F
min: 83°F / max: 87°F
85°F
min: 83°F / max: 87°F
Apalachicola
84°F
min: 82°F / max: 86°F
Biscayne National Park
86°F
min: 84°F / max: 87°F
85°F
min: 84°F / max: 87°F
Caladesi Island
85°F
min: 83°F / max: 87°F
86°F
min: 83°F / max: 88°F
Cedar Key
85°F
min: 83°F / max: 87°F
85°F
min: 84°F / max: 87°F
84°F
min: 83°F / max: 86°F
Egmont Key
85°F
min: 84°F / max: 87°F
86°F
min: 84°F / max: 87°F
85°F
min: 84°F / max: 86°F
84°F
min: 81°F / max: 86°F
Gulf Islands National Seashore
83°F
min: 80°F / max: 87°F
Hernando Beach
85°F
min: 83°F / max: 86°F
83°F
min: 81°F / max: 85°F
86°F
min: 85°F / max: 87°F
Lido Key
85°F
min: 83°F / max: 87°F
Miramar Beach
83°F
min: 81°F / max: 86°F
Naples
86°F
min: 84°F / max: 88°F
84°F
min: 82°F / max: 86°F
Palm Coast
84°F
min: 83°F / max: 86°F
Panama City Beach - Florida
83°F
min: 81°F / max: 86°F
Pine Island
85°F
min: 83°F / max: 88°F
Port St Joe
84°F
min: 82°F / max: 86°F
86°F
min: 83°F / max: 88°F
St George Island
84°F
min: 82°F / max: 86°F
85°F
min: 83°F / max: 87°F
Titusville
85°F
min: 83°F / max: 86°F
84°F
min: 83°F / max: 86°F
Big Pine Key
86°F
min: 84°F / max: 88°F
Callaway
83°F
min: 81°F / max: 86°F
Cape Coral
85°F
min: 84°F / max: 87°F
84°F
min: 82°F / max: 86°F
83°F
min: 81°F / max: 85°F
85°F
min: 84°F / max: 87°F
86°F
min: 84°F / max: 87°F
86°F
min: 84°F / max: 88°F
Palm Bay
84°F
min: 83°F / max: 86°F
84°F
min: 81°F / max: 86°F
Port Charlotte
86°F
min: 83°F / max: 87°F
Port Saint Lucie
85°F
min: 84°F / max: 86°F
85°F
min: 83°F / max: 88°F
85°F
min: 84°F / max: 86°F
Where should you go swimming in Florida in the month of september?
Swimming in Florida in september is ideal
In september in Florida swimming conditions are generally the same everywhere.
In september in Miami, Key West, St. Augustine, Tampa, Anna Maria Island, Apalachicola, Biscayne National Park, Boynton Beach, Caladesi Island, Captiva Island, Cedar Key, Clearwater, Cocoa Beach, Egmont Key, Fort Lauderdale, Fort Pierce, Fort Walton Beach, Gulf Islands National Seashore, Hernando Beach, Jacksonville, Key Largo, Lido Key, Miramar Beach, Naples, New Smyrna Beach, Palm Coast, Panama City Beach - Florida, Pine Island, Port St Joe, Sanibel Island, St George Island, St Petersburg, Titusville, Vero Beach, Big Pine Key, Callaway, Cape Coral, Daytona Beach, Fernandina Beach, Fort Myers, Islamorada, Marco Island, Palm Bay, Pensacola, Port Charlotte, Port Saint Lucie, Sarasota and West Palm Beach, swimming conditions are perfect! With water reaching a maximum of 87°F and an average of 86°F, going in the water (and staying there!) feels great.
Where to go swimming in Florida in september: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in september
Miami
| September | |||
| Average sea temperature | 86°F | ||
| Minimum sea temperature | 84°F | ||
| Maximum sea temperature | 87°F | ||
| Average outside temperature | 86°F | ||
| Maximum outside temperature | 88°F | ||
| Minimum outside temperature | 85°F | ||
| Precipitation | 9.8in | ||
| Number of days of precipitation | 19 jour(s) (62%) | ||
| Cloud cover | 30% | ||
| Our opinion | ideal swimming |
More information on swimming in Miami in september
Key West
| September | |||
| Average sea temperature | 86°F | ||
| Minimum sea temperature | 84°F | ||
| Maximum sea temperature | 88°F | ||
| Average outside temperature | 85°F | ||
| Maximum outside temperature | 86°F | ||
| Minimum outside temperature | 85°F | ||
| Precipitation | 11.3in | ||
| Number of days of precipitation | 16 jour(s) (52%) | ||
| Cloud cover | 29% | ||
| Our opinion | ideal swimming |
More information on swimming in Key West in september
St. Augustine
| September | |||
| Average sea temperature | 83°F | ||
| Minimum sea temperature | 82°F | ||
| Maximum sea temperature | 85°F | ||
| Average outside temperature | 83°F | ||
| Maximum outside temperature | 88°F | ||
| Minimum outside temperature | 77°F | ||
| Precipitation | 9.3in | ||
| Number of days of precipitation | 13 jour(s) (42%) | ||
| Cloud cover | 33% | ||
| Our opinion | ideal swimming |
More information on swimming in St. Augustine in september
Tampa
| September | |||
| Average sea temperature | 85°F | ||
| Minimum sea temperature | 83°F | ||
| Maximum sea temperature | 87°F | ||
| Average outside temperature | 85°F | ||
| Maximum outside temperature | 90°F | ||
| Minimum outside temperature | 79°F | ||
| Precipitation | 8.8in | ||
| Number of days of precipitation | 13 jour(s) (43%) | ||
| Cloud cover | 31% | ||
| Our opinion | ideal swimming |
More information on swimming in Tampa in september
Anna Maria Island
| September | |||
| Average sea temperature | 85°F | ||
| Minimum sea temperature | 83°F | ||
| Maximum sea temperature | 87°F | ||
| Average outside temperature | 85°F | ||
| Maximum outside temperature | 88°F | ||
| Minimum outside temperature | 81°F | ||
| Precipitation | 9.6in | ||
| Number of days of precipitation | 15 jour(s) (51%) | ||
| Cloud cover | 28% | ||
| Our opinion | ideal swimming |
More information on swimming in Anna Maria Island in september
List of coastal cities in Florida
| Miami in september | ideal swimming |
| Key West in september | ideal swimming |
| St. Augustine in september | ideal swimming |
| Tampa in september | ideal swimming |
| Anna Maria Island in september | ideal swimming |
| Apalachicola in september | ideal swimming |
| Biscayne National Park in september | ideal swimming |
| Boynton Beach in september | ideal swimming |
| Caladesi Island in september | ideal swimming |
| Captiva Island in september | ideal swimming |
| Cedar Key in september | ideal swimming |
| Clearwater in september | ideal swimming |
| Cocoa Beach in september | ideal swimming |
| Egmont Key in september | ideal swimming |
| Fort Lauderdale in september | ideal swimming |
| Fort Pierce in september | ideal swimming |
| Fort Walton Beach in september | ideal swimming |
| Gulf Islands National Seashore in september | ideal swimming |
| Hernando Beach in september | ideal swimming |
| Jacksonville in september | ideal swimming |
| Key Largo in september | ideal swimming |
| Lido Key in september | ideal swimming |
| Miramar Beach in september | ideal swimming |
| Naples in september | ideal swimming |
| New Smyrna Beach in september | ideal swimming |
| Palm Coast in september | ideal swimming |
| Panama City Beach - Florida in september | ideal swimming |
| Pine Island in september | ideal swimming |
| Port St Joe in september | ideal swimming |
| Sanibel Island in september | ideal swimming |
| St George Island in september | ideal swimming |
| St Petersburg in september | ideal swimming |
| Titusville in september | ideal swimming |
| Vero Beach in september | ideal swimming |
| Big Pine Key in september | ideal swimming |
| Callaway in september | ideal swimming |
| Cape Coral in september | ideal swimming |
| Daytona Beach in september | ideal swimming |
| Fernandina Beach in september | ideal swimming |
| Fort Myers in september | ideal swimming |
| Islamorada in september | ideal swimming |
| Marco Island in september | ideal swimming |
| Palm Bay in september | ideal swimming |
| Pensacola in september | ideal swimming |
| Port Charlotte in september | ideal swimming |
| Port Saint Lucie in september | ideal swimming |
| Sarasota in september | ideal swimming |
| West Palm Beach in september | ideal swimming |