Pool season · Texas
Waco Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
This is the one-page view of Waco'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.
Waco, TX — 163 swim days a yearThe bar compresses Waco's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 7–March 28 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 13. Wherever the today marker sits, the nearest color change is your next appointment.
The Waco pool calendar
Opening — target March 14
Open by March 14 — a two-week head start on the March 28 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 13
Hold the cover until November 4, then winterize by November 13, a week ahead of the November 20 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
Monthly averages of the site's water model run on Waco'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° | 62° | 69° | 78° | 83° | 86° | 82° | 73° | 62° | 53° |
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 Victoria's pool season and Wichita Falls's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Texas season index.
Waco pool season FAQ
When should I open my pool in Waco, TX?
Target March 14. That date backs off two weeks from the day Waco's 7-day mean temperature reaches 61°F, so you start up in cold, algae-resistant water. Work the full checklist in the Waco opening guide.
When should I close my pool in Waco?
The closing deadline is November 13 — late enough that the water has cooled out of the algae zone, early enough to beat Waco's first-freeze normal by about a week. See the Waco closing guide for the winterizing steps.
How long is the swim season in Waco?
Waco averages 163 days a year with normal highs of 80°F or better — about 6 days later than the Texas median. The Texas season index ranks all 68 covered cities by the same metric.
How warm does pool water get in Waco?
An unheated pool near Waco typically peaks around 86°F in high summer and bottoms out near 47°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 Waco hits the closing window
Data: NOAA 1991–2020 climate normals via Waco Dam (3.3 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.