Pool season · Texas
Edinburg Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
Edinburg'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.
Edinburg, TX — 240 swim days a yearReading it takes ten seconds: 52 dots, one per week. Solid teal is Edinburg's swim season; the hollow teal run before it (January 9 to January 30) is when to open; the hollow amber run after is when to close, with December 26 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Edinburg pool calendar
Opening — target January 16
Open by January 16 — a two-week head start on the January 30 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline December 26
The window opens December 20 once water leaves the algae zone; the model deadline is December 26, a week ahead of the January 2 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Edinburg'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 60° | 62° | 67° | 72° | 79° | 84° | 86° | 87° | 85° | 81° | 73° | 65° |
Warmest water typically May–October (peaking near 87°F); heaters and covers shift any month up.
Every station tells its own story: compare this curve with Denton's pool season and El Paso's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Texas season index.
Edinburg pool season FAQ
When should I open my pool in Edinburg, TX?
The site model recommends opening by January 16 — about two weeks before Edinburg's 7-day mean temperature crosses 61°F, while the water is still too cold for algae. The step-by-step sequence is in the Edinburg opening guide.
When should I close my pool in Edinburg?
Winterize by December 26. The model holds the deadline a week ahead of Edinburg's NOAA 50% first-freeze date, so the plumbing is protected before the first hard night. The full sequence is in the Edinburg closing guide.
How long is the swim season in Edinburg?
Edinburg averages 240 days a year with normal highs of 80°F or better — about 51 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 Edinburg?
An unheated pool near Edinburg typically peaks around 87°F in high summer and bottoms out near 59°F in winter, spending roughly 6 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 Edinburg hits the closing window
Data: NOAA 1991–2020 climate normals via Edinburg (1.5 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.