Louisiana Pool Season: Opening & Closing Dates by City

Local dates for every featured Louisiana city — when the water warms up, when it cools off, and how long the season actually lasts.

City Opening window Closing window Season
New Orleans Mar 9 – Apr 8 Oct 28 – Nov 17 ≈ 228 days
Baton Rouge Mar 23 – Apr 20 Oct 18 – Nov 5 ≈ 203 days
Shreveport Mar 26 – Apr 19 Oct 16 – Nov 2 ≈ 200 days

Windows show the stretch when each city's daily average passes through the low-to-mid 60s°F (1991–2020 NOAA records, nearest station to each city). Click a city for its month-by-month table and full season notes.

Season geography

Across Louisiana's featured cities, typical openings spread from Mar 24 to Apr 7, closings from Oct 24 to Nov 7, and the unheated season runs 200–228 days depending on where you are. Elevation, coastal water, and urban heat all pull real dates around, which is exactly why a state-level answer isn't enough.

For your exact town, the pool season lookup takes a ZIP code. Opening day itself is a chemistry job — the dosing calculator turns your first test reading of the year into exact amounts.

Louisiana planning pages

When to open — Louisiana When to close — Louisiana All states →