Pool season · Texas
Conroe Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
Conroe'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.
Conroe, TX — 188 swim days a yearThe bar compresses Conroe's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the February 16–March 9 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 25. Wherever the today marker sits, the nearest color change is your next appointment.
The Conroe pool calendar
Opening — target February 23
Target February 23; the practical window runs February 16–March 9, and the 7-day mean crosses the 61°F threshold around March 9. Cold-water starts are the cheap ones.
Closing — deadline November 25
Hold the cover until November 15, then winterize by November 25, a week ahead of the December 2 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
Monthly averages of the site's water model run on Conroe'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 52° | 54° | 60° | 67° | 73° | 80° | 84° | 85° | 83° | 76° | 66° | 57° |
Warmest water typically June–September (peaking near 86°F); heaters and covers shift any month up.
Every station tells its own story: compare this curve with College Station's pool season and Corpus Christi's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Texas season index.
Conroe pool season FAQ
When should I open my pool in Conroe, TX?
Open by February 23 — the model places Conroe's 61°F crossing about two weeks later, and every warm day you wait pushes the water toward the 65°F algae zone. The Conroe opening guide has the 12-step sequence.
When should I close my pool in Conroe?
Close by November 25: cool water keeps its winter chemistry, but freeze damage is the hard stop. The Conroe closing guide sequences the work backward from that date.
How long is the swim season in Conroe?
Conroe averages 188 days a year with normal highs of 80°F or better — about 13 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 Conroe?
An unheated pool near Conroe typically peaks around 86°F in high summer and bottoms out near 52°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 Conroe hits the closing window
Data: NOAA 1991–2020 climate normals via Conroe (0.4 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.