Pool season · Louisiana
Lake Charles Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
One bar, one year, one Lake Charles 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.
Lake Charles, LA — 184 swim days a yearThe bar compresses Lake Charles's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the February 13–March 6 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 26. Wherever the today marker sits, the nearest color change is your next appointment.
The Lake Charles pool calendar
Opening — target February 20
Open by February 20 — a two-week head start on the March 6 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 26
Hold the cover until November 16, then winterize by November 26, a week ahead of the December 7 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
Monthly averages of the site's water model run on Lake Charles'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 54° | 55° | 60° | 66° | 73° | 80° | 83° | 84° | 82° | 76° | 66° | 58° |
Warmest water typically June–September (peaking near 84°F); heaters and covers shift any month up.
Every station tells its own story: compare this curve with Lafayette's pool season and Mandeville's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Louisiana season index.
Lake Charles pool season FAQ
When should I open my pool in Lake Charles, LA?
The site model recommends opening by February 20 — about two weeks before Lake Charles's 7-day mean temperature crosses 61°F, while the water is still too cold for algae. The step-by-step sequence is in the Lake Charles opening guide.
When should I close my pool in Lake Charles?
Winterize by November 26. The model holds the deadline a week ahead of Lake Charles's NOAA 50% first-freeze date, so the plumbing is protected before the first hard night. The full sequence is in the Lake Charles closing guide.
How long is the swim season in Lake Charles?
Lake Charles averages 184 days a year with normal highs of 80°F or better — about 11 days earlier than the Louisiana median. The Louisiana season index ranks all 13 covered cities by the same metric.
How warm does pool water get in Lake Charles?
An unheated pool near Lake Charles typically peaks around 84°F in high summer and bottoms out near 53°F in winter, spending roughly 4 months at or above the 78°F comfort line most swimmers prefer. The month-by-month curve above shows the whole cycle; the methodology page explains the ±5°F error bars.
Email me when Lake Charles hits the closing window
Data: NOAA 1991–2020 climate normals via Lake Charles (5.3 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.