Pool season · Alabama
Huntsville Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Huntsville pool. The season bar below draws everything the model knows — opening window, prime season, closing window — against today's date, with the working details one click away on the opening and closing pages.
The bar compresses Huntsville's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 19–April 9 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 1. Wherever the today marker sits, the nearest color change is your next appointment.
The Huntsville pool calendar
Opening — target March 26
Open by March 26 — a two-week head start on the April 9 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 1
The window opens October 23 once water leaves the algae zone; the model deadline is November 1, a week ahead of the November 8 freeze normal.
Estimated water temperature by month
This is Huntsville'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 43° | 44° | 51° | 59° | 68° | 76° | 81° | 81° | 78° | 70° | 58° | 48° |
Warmest water typically July–September (peaking near 81°F); heaters and covers shift any month up.
Email me when Huntsville hits the closing window
Data: NOAA 1991–2020 climate normals via Huntsville International Airport (9.1 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.