Pool season · North Carolina
Greenville Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Greenville'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 Greenville's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 23–April 13 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends October 31. Wherever the today marker sits, the nearest color change is your next appointment.
The Greenville pool calendar
Opening — target March 30
Target March 30; the practical window runs March 23–April 13, and the 7-day mean crosses the 61°F threshold around April 13. Cold-water starts are the cheap ones.
Closing — deadline October 31
The window opens October 21 once water leaves the algae zone; the model deadline is October 31, a week ahead of the November 8 freeze normal.
Estimated water temperature by month
This is Greenville'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 44° | 44° | 49° | 58° | 66° | 74° | 80° | 80° | 77° | 68° | 57° | 49° |
Warmest water typically July–August (peaking near 81°F); heaters and covers shift any month up.
Email me when Greenville hits the closing window
Data: NOAA 1991–2020 climate normals via Greenville (3.4 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.