Pool season · Texas
Amarillo Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Amarillo'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.
Reading it takes ten seconds: 52 dots, one per week. Solid teal is Amarillo's swim season; the hollow teal run before it (April 17 to May 8) is when to open; the hollow amber run after is when to close, with October 18 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Amarillo pool calendar
Opening — target April 24
Target April 24; the practical window runs April 17–May 8, and the 7-day mean crosses the 61°F threshold around May 8. Cold-water starts are the cheap ones.
Closing — deadline October 18
The window opens October 8 once water leaves the algae zone; the model deadline is October 18, a week ahead of the October 29 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Amarillo'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 35° | 38° | 43° | 52° | 60° | 71° | 77° | 78° | 74° | 64° | 51° | 41° |
Warmest water typically August–August (peaking near 79°F); heaters and covers shift any month up.
Email me when Amarillo hits the closing window
Data: NOAA 1991–2020 climate normals via Amarillo 7ene (7.3 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.