Beach sunset 2022 Clearwater beach by 8bit12man, CC0
Clearwater Beach water temperature
The sea at Clearwater Beach averages 30°C (86°F) in August and 18°C (64°F) in February (NOAA OISST, 1991-2020).
Updated Tue Nov 3, 2026. These are long-term averages, not a forecast.
When is the water warmest at Clearwater Beach?
The water at Clearwater Beach is warmest from June to September, the months when the monthly average, in whole degrees, is within 2°C (3.6°F) of the yearly peak of 30°C (86°F) in August.
Dark bars are the warmest-water months. Bars show whole °C, which is what the warm-water rule uses; the table below has °C and °F.
How warm is the water at Clearwater Beach each month?
Sea temperature: NOAA OISST, 1991-2020.
| Month | Sea temperature |
|---|---|
| January | 18°C (64°F) |
| February | 18°C (64°F) |
| March | 20°C (67°F) |
| April | 23°C (73°F) |
| May | 26°C (78°F) |
| June | 28°C (83°F) |
| July | 30°C (85°F) |
| August | 30°C (86°F) |
| September | 29°C (84°F) |
| October | 27°C (80°F) |
| November | 23°C (73°F) |
| December | 20°C (68°F) |
Shaded rows: the warmest-water months.
Best time to visit Clearwater Beach
Going by sea temperature alone, the best time to visit Clearwater Beach for warm water is June to September. The sea is coolest in February, at 18°C (64°F). This does not consider air temperature, rain or crowds.
This is based on sea temperature averages only. It is not the Beach Score, which rates one hour from the forecast for wind, waves, weather and temperature: how the Beach Score works, or see today's score at Clearwater Beach.
Sources and method
Sea temperature: NOAA OISST v2 high resolution long-term mean (sst.mon.ltm.1991-2020.nc, NOAA PSL, public domain), grid cell centered 27.875N 82.875W, 13 km from the forecast cell center. Period 1991-2020.
We do not show rain or air temperature: the global datasets we can use are too coarse to be right at a single stretch of coast.
Warmest-water months are the months whose average sea temperature, in whole degrees as shown, is within 2°C (3.6°F) of the warmest month's. Today's reading is the model forecast for the sea surface and can differ from a thermometer in the water.
Rip current and water quality data are not available for Clearwater Beach. Check local flags and lifeguards.