PoolWindow

Pool season · Texas

Temple Pool Season: the Year on One Bar

Last updated: July 25, 2026 · dates · water temp

One bar, one year, one Temple pool. The season bar below draws everything the model knows — opening window, prime season, closing window — against today's date, with the working details one click away on the opening and closing pages.

Resort pool at dusk in a hot, long-season climateTemple, TX — 175 swim days a year
J F M A M J J A S O N D today (build date)

off-season opening window swim season closing window

Each dot on the bar is one week of Temple's typical year, colored by what the model says that week is for: gray weeks are off-season, hollow teal marks the opening window (March 6–March 27), solid teal is swim season, and hollow amber is the closing window ending November 13. The black marker is today — its position against the colors is the entire executive summary.

The Temple pool calendar

March 13open by
November 13close by
17580°F+ days
84°Fwater peak

Opening — target March 13

Target March 13; the practical window runs March 6–March 27, and the 7-day mean crosses the 61°F threshold around March 27. Cold-water starts are the cheap ones.

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 Temple water runs about 48°F at its winter floor and 84°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 Temple's own normals — the shape of a typical year, not a forecast. The widget above shows where the current year actually sits.

40°50°60°70°80°90°100°JanFebMarAprMayJunJulAugSepOctNovDec65° algae zone58° swimmable startopen Mar 13close Nov 1384°F peak48°F floor
Site-model seasonal water estimates for an unheated in-ground pool near Stillhouse Hollow Dam — ±5°F, see methodology.
JanFebMarAprMayJunJulAugSepOctNovDec
48°50°55°63°70°78°82°84°81°73°62°53°

Warmest water typically June–September (peaking near 84°F); heaters and covers shift any month up.

Every station tells its own story: compare this curve with Sugar Land's pool season and Texarkana's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Texas season index.

Temple pool season FAQ

When should I open my pool in Temple, TX?

Target March 13. That date backs off two weeks from the day Temple's 7-day mean temperature reaches 61°F, so you start up in cold, algae-resistant water. Work the full checklist in the Temple opening guide.

When should I close my pool in Temple?

The closing deadline is November 13 — late enough that the water has cooled out of the algae zone, early enough to beat Temple's first-freeze normal by about a week. See the Temple closing guide for the winterizing steps.

How long is the swim season in Temple?

Temple averages 175 days a year with normal highs of 80°F or better — about 5 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 Temple?

An unheated pool near Temple typically peaks around 84°F in high summer and bottoms out near 48°F in winter, spending roughly 3 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.

Data: NOAA 1991–2020 climate normals via Stillhouse Hollow Dam (9.6 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.