How Crowded Is Wolf Trap National Park for the Performing Arts in September?

September runs about 1.6× Wolf Trap National Park for the Performing Arts's average month, which makes it a very busy month here — roughly 14% of the park's yearly visitors come in September.

In a typical September the park sees about 51,000 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

That makes September the 4th-busiest of the park's twelve months, sitting between the July peak (3.1×) and the February low (0.1×).

On our Best Time to Visit score September rates 65/100 ("Good"), versus the top-rated May at 76/100 — best overall balance of crowds, weather and daylight.

Typical September weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 76°F and an overnight low around 57°F, with about 4.2" of precipitation.

That average of about 67°F is a comfortable range for hiking and being outdoors all day.

Because June, July and August together draw about 73% 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 9.3-hour midwinter low and the 14.7-hour summer high.

Park-wide, 2025 drew 437,413 recreation visits, down 2.3% from 447,863 in 2024.

Across the past decade overall visitation has risen about 24.6%, so a September visit is likely to feel busier than it did a few years ago.