Pool season · Texas
The Woodlands Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
The Woodlands'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 Woodlands, TX — 189 swim days a yearReading it takes ten seconds: 52 dots, one per week. Solid teal is The Woodlands's swim season; the hollow teal run before it (February 12 to March 5) is when to open; the hollow amber run after is when to close, with November 24 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The The Woodlands pool calendar
Opening — target February 19
Target February 19; the practical window runs February 12–March 5, and the 7-day mean crosses the 61°F threshold around March 5. Cold-water starts are the cheap ones.
Closing — deadline November 24
The window opens November 14 once water leaves the algae zone; the model deadline is November 24, a week ahead of the December 3 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on The Woodlands'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 53° | 55° | 61° | 67° | 73° | 81° | 84° | 85° | 83° | 76° | 65° | 57° |
Warmest water typically June–September (peaking near 85°F); heaters and covers shift any month up.
Every station tells its own story: compare this curve with Texarkana's pool season and Tyler's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Texas season index.
The Woodlands pool season FAQ
When should I open my pool in The Woodlands, TX?
The site model recommends opening by February 19 — about two weeks before The Woodlands's 7-day mean temperature crosses 61°F, while the water is still too cold for algae. The step-by-step sequence is in the The Woodlands opening guide.
When should I close my pool in The Woodlands?
Winterize by November 24. The model holds the deadline a week ahead of The Woodlands's NOAA 50% first-freeze date, so the plumbing is protected before the first hard night. The full sequence is in the The Woodlands closing guide.
How long is the swim season in The Woodlands?
The Woodlands averages 189 days a year with normal highs of 80°F or better — about 17 days earlier than the Texas median. The Texas season index ranks all 68 covered cities by the same metric.
How warm does pool water get in The Woodlands?
An unheated pool near The Woodlands typically peaks around 85°F in high summer and bottoms out near 53°F in winter, spending roughly 4 months at or above the 78°F comfort line most swimmers prefer. The month-by-month curve above shows the whole cycle; the methodology page explains the ±5°F error bars.
Email me when The Woodlands hits the closing window
Data: NOAA 1991–2020 climate normals via Houston Hooks Memorial Airport (7.8 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.