How Crowded Is Keweenaw National Historical Park in September?

September runs about 1.9× Keweenaw National Historical Park's average month, which makes it a very busy month here — roughly 16% of the park's yearly visitors come in September.

In a typical September the park sees roughly 3,700 recreation visits, based on National Park Service monthly counts from 2016 to 2025.

That makes September the 3rd-busiest of the park's twelve months, sitting between the August peak (3×) and the January low (0.1×).

On our Best Time to Visit score September rates 55/100 ("Fair"), versus the top-rated May at 68/100 — 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 66°F and an overnight low around 47°F.

That average of about 56°F is a comfortable range for hiking and being outdoors all day.

Because June, July and August together draw about 64% 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 8.3-hour midwinter low and the 15.7-hour summer high.

Park-wide, 2025 drew 35,489 recreation visits, up 13.8% from 31,191 in 2024.

Across the past decade overall visitation has risen about 69.3%, so a September visit is likely to feel busier than it did a few years ago.