Pool season · Louisiana
Baton Rouge Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
This is the one-page view of Baton Rouge'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.
Reading it takes ten seconds: 52 dots, one per week. Solid teal is Baton Rouge's swim season; the hollow teal run before it (February 26 to March 19) is when to open; the hollow amber run after is when to close, with November 16 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Baton Rouge pool calendar
Opening — target March 5
Open by March 5 — a two-week head start on the March 19 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 16
The window opens November 6 once water leaves the algae zone; the model deadline is November 16, a week ahead of the November 26 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Baton Rouge'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 51° | 52° | 58° | 64° | 71° | 78° | 81° | 82° | 80° | 74° | 63° | 55° |
Warmest water typically June–September (peaking near 82°F); heaters and covers shift any month up.
Email me when Baton Rouge hits the closing window
Data: NOAA 1991–2020 climate normals via Lsu Ben-hur Farm (5.8 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.