PoolWindow

Pool season · North Carolina

Concord Pool Season: the Year on One Bar

Last updated: July 15, 2026 · dates · water temp

One bar, one year, one Concord 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.

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 Concord's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 28–April 18 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends October 26. Wherever the today marker sits, the nearest color change is your next appointment.

The Concord pool calendar

April 4open by
October 26close by
14480°F+ days
80°Fwater peak

Opening — target April 4

Open by April 4 — a two-week head start on the April 18 crossing keeps startup chemistry small and beats the local service rush.

Full opening guide

Closing — deadline October 26

Hold the cover until October 16, then winterize by October 26, a week ahead of the November 2 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 Concord water runs about 41°F at its winter floor and 80°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 Concord's own normals — the shape of a typical year, not a forecast. The widget above shows where the current year actually sits.

Site-model seasonal water estimates for an unheated in-ground pool near Concord — ±5°F, see methodology.
JanFebMarAprMayJunJulAugSepOctNovDec
42°42°48°56°65°73°79°80°76°67°55°47°

Warmest water typically July–August (peaking near 80°F); heaters and covers shift any month up.

Data: NOAA 1991–2020 climate normals via Concord (3.2 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.