Pool season · Texas
Baytown Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Baytown'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 Baytown's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the February 18–March 11 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 24. Wherever the today marker sits, the nearest color change is your next appointment.
The Baytown pool calendar
Opening — target February 25
Target February 25; the practical window runs February 18–March 11, and the 7-day mean crosses the 61°F threshold around March 11. Cold-water starts are the cheap ones.
Closing — deadline November 24
Hold the cover until November 14, then winterize by November 24, a week ahead of the December 4 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Baytown's typical-year water curve: the same EWMA model as the live widget, run on the 1991–2020 normals instead of this week's weather.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 52° | 54° | 59° | 65° | 72° | 79° | 82° | 84° | 81° | 75° | 65° | 57° |
Warmest water typically June–September (peaking near 84°F); heaters and covers shift any month up.
Email me when Baytown hits the closing window
Data: NOAA 1991–2020 climate normals via Baytown (10.8 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.