Pool season · North Carolina
Apex Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Apex'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.
The bar compresses Apex's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 31–April 21 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends October 24. Wherever the today marker sits, the nearest color change is your next appointment.
The Apex pool calendar
Opening — target April 7
Target April 7; the practical window runs March 31–April 21, and the 7-day mean crosses the 61°F threshold around April 21. Cold-water starts are the cheap ones.
Closing — deadline October 24
The window opens October 14 once water leaves the algae zone; the model deadline is October 24, a week ahead of the November 8 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Apex'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 42° | 42° | 47° | 56° | 64° | 72° | 78° | 79° | 75° | 66° | 55° | 47° |
Warmest water typically July–August (peaking near 79°F); heaters and covers shift any month up.
Email me when Apex hits the closing window
Data: NOAA 1991–2020 climate normals via Apex (2.5 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.