PoolWindow

Pool season · Alabama

Montgomery Pool Season: the Year on One Bar

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

This is the one-page view of Montgomery'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.

Resort pool at dusk in a hot, long-season climateMontgomery, AL — 181 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

The bar compresses Montgomery's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the February 24–March 17 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 11. Wherever the today marker sits, the nearest color change is your next appointment.

The Montgomery pool calendar

March 3open by
November 11close by
18180°F+ days
85°Fwater peak

Opening — target March 3

Target March 3; the practical window runs February 24–March 17, and the 7-day mean crosses the 61°F threshold around March 17. Cold-water starts are the cheap ones.

Full opening guide

Closing — deadline November 11

Hold the cover until November 4, then winterize by November 11, a week ahead of the November 18 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 Montgomery water runs about 50°F at its winter floor and 85°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 Montgomery'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 3close Nov 1185°F peak50°F floor
Site-model seasonal water estimates for an unheated in-ground pool near Montgomery 6sw — ±5°F, see methodology.
JanFebMarAprMayJunJulAugSepOctNovDec
50°52°58°65°72°79°83°85°82°74°62°54°

Warmest water typically June–September (peaking near 85°F); heaters and covers shift any month up.

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

Montgomery pool season FAQ

When should I open my pool in Montgomery, AL?

Target March 3. That date backs off two weeks from the day Montgomery's 7-day mean temperature reaches 61°F, so you start up in cold, algae-resistant water. Work the full checklist in the Montgomery opening guide.

When should I close my pool in Montgomery?

The closing deadline is November 11 — late enough that the water has cooled out of the algae zone, early enough to beat Montgomery's first-freeze normal by about a week. See the Montgomery closing guide for the winterizing steps.

How long is the swim season in Montgomery?

Montgomery averages 181 days a year with normal highs of 80°F or better — about 20 days earlier than the Alabama median. The Alabama season index ranks all 10 covered cities by the same metric.

How warm does pool water get in Montgomery?

An unheated pool near Montgomery typically peaks around 85°F in high summer and bottoms out near 50°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.

Data: NOAA 1991–2020 climate normals via Montgomery 6sw (6.7 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.