Where is the sea coldest in Florida in March?

Naples Beach in United States has the coldest sea in Florida in March, averaging about 19.0 °C. Sanibel Beach (19.0 °C) and Lido Beach are the next coolest.

How many beaches in Florida are warm enough to swim in March?

None of the top 25 ranked beaches in Florida reach 22 °C in March, so a wetsuit is recommended for anything longer than a quick dip.

How are these March sea temperatures calculated?

Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical March rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

Seasonal ranking

Coldest sea temperature in Florida in March

Where the sea is coolest across Florida during March, ranked by long-term monthly average water temperature. Naples Beach (Florida, United States) is the coolest at around 19°C. Open any spot for today's live water temperature and a 7-day swim forecast.

1
Naples Beach
Florida · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
2
Sanibel Beach
Florida · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
3
Lido Beach
Florida · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
4
Anna Maria Beach
Florida · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
5
Lovers Key
Florida · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
6
Delray Beach
Florida · United States · Atlantic Ocean
Mild — fine for a swim, cool at first
19°C
March average
7
Henderson Beach
Florida Panhandle · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
8
WaterColor Beach
Florida Panhandle · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
9
Inlet Beach
Florida Panhandle · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
10
Cape San Blas
Florida Panhandle · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
11
Shell Island
Florida Panhandle · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
12
Okaloosa Island Beach
Florida Panhandle · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
13
Perdido Key Beach
Florida Panhandle · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
14
Cape San Blas Beach
Florida Panhandle · United States · Gulf of Mexico
Mild — fine for a swim, cool at first
19°C
March average
15
Clearwater Beach
Florida Gulf · United States · Gulf of Mexico
Pleasant — swimmable without a wetsuit
21°C
March average
16
Caladesi Island
Florida Gulf · United States · Gulf of Mexico
Pleasant — swimmable without a wetsuit
21°C
March average
17
Indian Rocks Beach
Florida Gulf · United States · Gulf of Mexico
Pleasant — swimmable without a wetsuit
21°C
March average
18
Madeira Beach
Florida Gulf · United States · Gulf of Mexico
Pleasant — swimmable without a wetsuit
21°C
March average
19
Treasure Island
Florida Gulf · United States · Gulf of Mexico
Pleasant — swimmable without a wetsuit
21°C
March average
20
St Pete Beach
Florida Gulf · United States · Gulf of Mexico
Pleasant — swimmable without a wetsuit
21°C
March average
21
Fort De Soto
Florida Gulf · United States · Gulf of Mexico
Pleasant — swimmable without a wetsuit
21°C
March average
22
Bradenton Beach
Florida Gulf · United States · Gulf of Mexico
Pleasant — swimmable without a wetsuit
21°C
March average
23
Siesta Key
Florida Gulf · United States · Gulf of Mexico
Pleasant — swimmable without a wetsuit
21°C
March average
24
Manasota Key
Florida Gulf · United States · Gulf of Mexico
Pleasant — swimmable without a wetsuit
21°C
March average
25
Boca Grande
Florida Gulf · United States · Gulf of Mexico
Pleasant — swimmable without a wetsuit
21°C
March average

Coldest sea in March elsewhere

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Florida in March — frequently asked questions

Where is the sea coldest in Florida in March?: Naples Beach in United States has the coldest sea in Florida in March, averaging about 19.0 °C. Sanibel Beach (19.0 °C) and Lido Beach are the next coolest.
How many beaches in Florida are warm enough to swim in March?: None of the top 25 ranked beaches in Florida reach 22 °C in March, so a wetsuit is recommended for anything longer than a quick dip.
How are these March sea temperatures calculated?: Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical March rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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