St. Pete Beach Water Temperature
Sea-surface temperature at St. Pete Beach, Florida · times in EDT
Updated 7:03 AM EDT
How it compares today
Water temperature through the year
Monthly normals computed from 2023–2025 daily sea-surface temperature history.
Nearby water right now
7-day outlook
| Day | Air high / low | Max UV | Rain |
|---|---|---|---|
| Fri, Aug 28 | 88° / 79° | 8 | 19% |
| Sat, Aug 29 | 92° / 76° | 8 | 54% |
| Sun, Aug 30 | 94° / 76° | 8 | 77% |
| Mon, Aug 31 | 93° / 81° | 8 | 70% |
| Tue, Sep 1 | 93° / 82° | 6 | 73% |
| Wed, Sep 2 | 93° / 81° | 8 | 54% |
| Thu, Sep 3 | 91° / 81° | 8 | 48% |
Sea-surface temperature and wave data from the Open-Meteo marine model; weather from Open-Meteo.
Is St. Pete Beach warm enough to swim?
At 89°F, the water at St. Pete Beach is warm — great for swimming. Most swimmers are comfortable without a wetsuit above 72°F; below 62°F, cold-water shock becomes a real risk for unprotected swimmers.
That is right on the August average of 89°F for this beach.
The water averages above 70°F in March, April, May, June, July, August, September, October and November — 9 months of the year — peaking around 89°F in July and dropping to about 62°F in January.
Frequently asked questions
How warm is the water at St. Pete Beach right now?
The sea-surface temperature is about 89°F. That is right on the August average of 89°F for this beach.
When is the water warm enough to swim at St. Pete Beach?
The water averages above 70°F in March, April, May, June, July, August, September, October and November — 9 months of the year — peaking around 89°F in July and dropping to about 62°F in January.
What is the warmest the water gets at St. Pete Beach?
Around 89°F in July, based on 2023–2025 records. The coolest month is January at roughly 62°F.