Pool season · Texas
Brownsville Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Brownsville's whole pool calendar, condensed: when the water warms, when it cools, and where today falls between those edges. Use the opening guide and closing guide for the step-by-step work; keep this page for the dates.
The bar compresses Brownsville's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the January 3–January 24 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends December 28. Wherever the today marker sits, the nearest color change is your next appointment.
The Brownsville pool calendar
Opening — target January 10
Target January 10; the practical window runs January 3–January 24, and the 7-day mean crosses the 61°F threshold around January 24. Cold-water starts are the cheap ones.
Closing — deadline December 28
The window opens December 23 once water leaves the algae zone; the model deadline is December 28, a week ahead of the January 4 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Brownsville'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 60° | 63° | 67° | 73° | 78° | 83° | 84° | 85° | 84° | 79° | 72° | 65° |
Warmest water typically May–October (peaking near 86°F); heaters and covers shift any month up.
Email me when Brownsville hits the closing window
Data: NOAA 1991–2020 climate normals via Wfo Brownsville (6.1 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.