Pool season · Florida
St. Petersburg Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
St. Petersburg runs a twelve-month pool calendar — the model finds no week cold enough to force a closing. This page tracks the water-temperature curve and the prime-season stretch; the spring refresh and winter care guides cover the routines that replace opening and closing here. Keep it bookmarked as the between-guides dashboard for the year.
Each dot is one week of St. Petersburg's year, and here they're all solid teal — the model finds no off-season to draw. What varies instead is comfort: the water table below shows the seasonal range from 62°F to 84°F, and the today marker tells you where in that cycle you're standing. Maintenance follows the same curve — heavier through the 210-day prime stretch, lighter but never zero through winter.
The St. Petersburg pool calendar
Spring refresh
No forced dates: the 7-day mean never leaves the swim-viable range (floor 61.7°F). Spring refresh and winter care replace opening and closing.
Winter care
The model finds no closing week in St. Petersburg — maintenance is continuous, with a 210-day prime stretch of 80°F+ afternoons.
Estimated water temperature by month
Monthly averages of the site's water model run on St. Petersburg's own normals — the shape of a typical year, not a forecast. The widget above shows where the current year actually sits.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 63° | 63° | 67° | 72° | 77° | 82° | 84° | 84° | 83° | 80° | 73° | 67° |
Warmest water typically June–October (peaking near 84°F); heaters and covers shift any month up.
Email me when St. Petersburg hits the closing window
Data: NOAA 1991–2020 climate normals via St Petersburg (3.2 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.