Pool season · Texas
Atascocita Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
This is the one-page view of Atascocita's pool year: both model windows, the estimated water-temperature curve, and today's live position on the season bar. The detailed checklists live on the opening and closing guides; this page is the calendar you check between them.
Atascocita, TX — 193 swim days a yearThe bar compresses Atascocita's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the February 10–March 3 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 28. Wherever the today marker sits, the nearest color change is your next appointment.
The Atascocita pool calendar
Opening — target February 17
Open by February 17 — a two-week head start on the March 3 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 28
Hold the cover until November 18, then winterize by November 28, a week ahead of the December 9 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Atascocita'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 54° | 55° | 61° | 67° | 74° | 81° | 84° | 86° | 83° | 76° | 66° | 58° |
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 Arlington's pool season and Austin's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Texas season index.
Atascocita pool season FAQ
When should I open my pool in Atascocita, TX?
Open by February 17 — the model places Atascocita's 61°F crossing about two weeks later, and every warm day you wait pushes the water toward the 65°F algae zone. The Atascocita opening guide has the 12-step sequence.
When should I close my pool in Atascocita?
Close by November 28: cool water keeps its winter chemistry, but freeze damage is the hard stop. The Atascocita closing guide sequences the work backward from that date.
How long is the swim season in Atascocita?
Atascocita averages 193 days a year with normal highs of 80°F or better — about 19 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 Atascocita?
An unheated pool near Atascocita typically peaks around 86°F in high summer and bottoms out near 54°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 Atascocita hits the closing window
Data: NOAA 1991–2020 climate normals via Houston Intercont Airport (9.9 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.