Pool season · Louisiana
Slidell Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Slidell 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.
Each dot on the bar is one week of Slidell's typical year, colored by what the model says that week is for: gray weeks are off-season, hollow teal marks the opening window (February 24–March 17), solid teal is swim season, and hollow amber is the closing window ending November 19. The black marker is today — its position against the colors is the entire executive summary.
The Slidell pool calendar
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.
Closing — deadline November 19
Hold the cover until November 9, then winterize by November 19, a week ahead of the December 1 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
Monthly averages of the site's water model run on Slidell'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 52° | 52° | 58° | 64° | 71° | 78° | 81° | 82° | 80° | 74° | 64° | 56° |
Warmest water typically June–September (peaking near 82°F); heaters and covers shift any month up.
Email me when Slidell hits the closing window
Data: NOAA 1991–2020 climate normals via Slidell (1.8 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.