Pool season · Texas
Fort Worth Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
This is the one-page view of Fort Worth'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.
Fort Worth, TX — 174 swim days a yearThe bar compresses Fort Worth's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the February 28–March 21 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 14. Wherever the today marker sits, the nearest color change is your next appointment.
The Fort Worth pool calendar
Opening — target March 7
Open by March 7 — a two-week head start on the March 21 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 14
The window opens November 4 once water leaves the algae zone; the model deadline is November 14, a week ahead of the November 24 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Fort Worth'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 48° | 50° | 56° | 64° | 71° | 80° | 84° | 87° | 83° | 74° | 62° | 52° |
Warmest water typically June–September (peaking near 87°F); heaters and covers shift any month up.
Every station tells its own story: compare this curve with Flower Mound's pool season and Frisco's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Texas season index.
Fort Worth pool season FAQ
When should I open my pool in Fort Worth, TX?
Open by March 7 — the model places Fort Worth's 61°F crossing about two weeks later, and every warm day you wait pushes the water toward the 65°F algae zone. The Fort Worth opening guide has the 12-step sequence.
When should I close my pool in Fort Worth?
Close by November 14: cool water keeps its winter chemistry, but freeze damage is the hard stop. The Fort Worth closing guide sequences the work backward from that date.
How long is the swim season in Fort Worth?
Fort Worth averages 174 days a year with normal highs of 80°F or better — right on the statewide median. The Texas season index ranks all 68 covered cities by the same metric.
How warm does pool water get in Fort Worth?
An unheated pool near Fort Worth typically peaks around 87°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 Fort Worth hits the closing window
Data: NOAA 1991–2020 climate normals via Ft Worth Meacham Field Naaf (2.4 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.