How Crowded Is Little Bighorn Battlefield National Monument in September?

September runs about 1.5× Little Bighorn Battlefield National Monument's average month, which makes it a busy month here — roughly 12% of the park's yearly visitors come in September.

In a typical September the park sees about 32,000 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 (2.9×) and the December low (0.1×).

On our Best Time to Visit score September rates 64/100 ("Good"), versus the top-rated May at 65/100 — 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 79°F and an overnight low around 44°F, with about 1.4" of precipitation.

That average of about 62°F is a comfortable range for hiking and being outdoors all day.

Because June, July and August together draw about 66% 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 12.3 hours of daylight in September to explore — between the 8.5-hour midwinter low and the 15.5-hour summer high.

Park-wide, 2024 drew 111,825 recreation visits, down 50.8% from 227,295 in 2023.

Across the past decade overall visitation has eased about 30.8%, so September may feel a touch quieter than it once did.