How Crowded Is Katmai National Park & Preserve in May?

May runs about 0× Katmai National Park & Preserve's average month, which makes it a very quiet month here — roughly 0% of the park's yearly visitors come in May.

In a typical May the park sees about 120 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

That makes May the 6th-busiest of the park's twelve months, sitting between the July peak (5.1×) and the January low (0×).

On our Best Time to Visit score May rates 69/100 ("Good") — the single best-rated month at Katmai, balancing crowds against weather and daylight.

Typical May weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 52°F and an overnight low around 33°F, with about 1.5" of precipitation.

That average of about 43°F is cool, so layers and a shorter daylight window matter.

Because June, July and August together draw about 83% of annual visitors, choosing May instead steps outside that summer crush — the single biggest lever on how crowded the park feels.

You'll have about 16.5 hours of daylight in May to explore — between the 6-hour midwinter low and the 18-hour summer high.

Park-wide, 2023 drew 33,763 recreation visits, down 34.5% from 51,511 in 2020.

Across the past decade overall visitation has eased about 10.3%, so May may feel a touch quieter than it once did.