Pool season · Texas
Midland Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
This is the one-page view of Midland'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.
Midland, TX — 197 swim days a yearThe bar compresses Midland's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 6–March 27 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 2. Wherever the today marker sits, the nearest color change is your next appointment.
The Midland pool calendar
Opening — target March 13
Open by March 13 — a two-week head start on the March 27 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 2
The window opens October 29 once water leaves the algae zone; the model deadline is November 2, a week ahead of the November 9 freeze normal.
Estimated water temperature by month
This is Midland's typical-year water curve: the same EWMA model as the live widget, run on the 1991–2020 normals instead of this week's weather.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 45° | 48° | 54° | 63° | 70° | 79° | 82° | 83° | 78° | 71° | 60° | 49° |
Warmest water typically June–September (peaking near 83°F); heaters and covers shift any month up.
Every station tells its own story: compare this curve with Mesquite's pool season and Mission's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Texas season index.
Midland pool season FAQ
When should I open my pool in Midland, TX?
Open by March 13 — the model places Midland's 61°F crossing about two weeks later, and every warm day you wait pushes the water toward the 65°F algae zone. The Midland opening guide has the 12-step sequence.
When should I close my pool in Midland?
Close by November 2: cool water keeps its winter chemistry, but freeze damage is the hard stop. The Midland closing guide sequences the work backward from that date.
How long is the swim season in Midland?
Midland averages 197 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 Midland?
An unheated pool near Midland typically peaks around 83°F in high summer and bottoms out near 45°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 Midland hits the closing window
Data: NOAA 1991–2020 climate normals via Midland 4 ENE (5.2 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.