How Crowded Is Jean Lafitte National Historical Park and Preserve in September?

September runs about 0.8× Jean Lafitte National Historical Park and Preserve's average month, which makes it a quiet month here — roughly 7% of the park's yearly visitors come in September.

In a typical September the park sees about 22,000 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

It is the quietest month of the year at Jean Lafitte; by contrast March, the busiest, runs about 1.4× the average — so September is the easiest time to have the place largely to yourself.

On our Best Time to Visit score September rates 72/100 ("Good"), versus the top-rated November at 67/100 — pleasant weather with noticeably thinner crowds (shoulder season).

Typical September weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 87°F and an overnight low around 70°F, with about 6.3" of precipitation.

That average of about 78°F is warm enough that midday heat is worth planning around.

Because June, July and August together draw about 24% of annual visitors, choosing September instead steps outside that summer crush — the single biggest lever on how crowded the park feels.

You'll have about 12.2 hours of daylight in September to explore — between the 10.1-hour midwinter low and the 13.9-hour summer high.

Park-wide, 2025 drew 226,543 recreation visits, up 6.6% from 212,591 in 2024.

Across the past decade overall visitation has eased about 45.4%, so September may feel a touch quieter than it once did.