PoolWindow

Pool season · Texas

Waco Pool Season: the Year on One Bar

Last updated: July 15, 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.

J F M A M J J A S O N D today (build date)

off-season opening window swim season closing window

The 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

March 14open by
November 13close by
16380°F+ days
86°Fwater peak

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.

Full opening guide

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.

Full closing guide

Where the water sits today

SEASONAL VIEW

Estimated unheated pool water temp (site model, ±5°F). The live estimate loads in your browser from Open-Meteo air temperatures; in a typical year Waco water runs about 47°F at its winter floor and 86°F at its summer peak.

40 45 50 55 60 65 70 75 80 85 58 open 65 algae

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.

Site-model seasonal water estimates for an unheated in-ground pool near Waco Dam — ±5°F, see methodology.
JanFebMarAprMayJunJulAugSepOctNovDec
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.

Data: NOAA 1991–2020 climate normals via Waco Dam (3.3 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.