How Crowded Is Camp Nelson National Monument in September?
September runs about 1.1× Camp Nelson National Monument's average month, which makes it an average month here — roughly 9% of the park's yearly visitors come in September.
In a typical September the park sees roughly 1,900 recreation visits, based on National Park Service monthly counts from 2021 to 2025.
That makes September the 5th-busiest of the park's twelve months, sitting between the July peak (1.4×) and the January low (0.4×).
On our Best Time to Visit score September rates 60/100 ("Good"), versus the top-rated April at 52/100 — 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 80°F and an overnight low around 58°F, with about 3.4" of precipitation.
That average of about 69°F is a comfortable range for hiking and being outdoors all day.
Because June, July and August together draw about 32% 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 9.4-hour midwinter low and the 14.6-hour summer high.
Park-wide, 2025 drew 20,763 recreation visits, down 40.2% from 34,716 in 2024.
Frequently Asked Questions
September is average at Camp Nelson National Monument (about 1.1× the average month). Our best-time score rates it "Good". The single best month overall is April.
The busiest month is July and the quietest is January. September sits at about 1.1× the park's average, or 9% of annual visitation.
A typical September sees about 2,000 recreation visits at Camp Nelson National Monument, based on National Park Service monthly counts from 2021–2025.
Where to stay near Camp Nelson in September
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Source: National Park Service Visitor Use Statistics (2021–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-07-14.