Pool season · Texas
Mansfield Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Mansfield'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 Mansfield's swim season; the hollow teal run before it (March 3 to March 24) is when to open; the hollow amber run after is when to close, with November 12 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Mansfield pool calendar
Opening — target March 10
Open by March 10 — a two-week head start on the March 24 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 12
The window opens November 2 once water leaves the algae zone; the model deadline is November 12, a week ahead of the November 21 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Mansfield'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 47° | 49° | 55° | 63° | 70° | 79° | 84° | 86° | 82° | 73° | 62° | 52° |
Warmest water typically June–September (peaking near 86°F); heaters and covers shift any month up.
Email me when Mansfield hits the closing window
Data: NOAA 1991–2020 climate normals via Arlington Municipal Airport (6.7 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.