How Crowded Is Aniakchak National Monument & Preserve in May?

May runs about 0.8× Aniakchak National Monument & Preserve's average month, which makes it a quiet month here — roughly 7% of the park's yearly visitors come in May.

In a typical May the park sees about 90 recreation visits, based on National Park Service monthly counts from 1989 to 2025.

That makes May the 6th-busiest of the park's twelve months, sitting between the September peak (3.7×) and the February low (0.1×).

On our Best Time to Visit score May rates 61/100 ("Good"), versus the top-rated June at 67/100 — best overall balance of crowds, 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 49% 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 16.2 hours of daylight in May to explore — between the 6.5-hour midwinter low and the 17.5-hour summer high.

Park-wide, 1994 drew 1,193 recreation visits, down 25.1% from 1,593 in 1993.

Across the past decade overall visitation has risen about 60.8%, so a May visit is likely to feel busier than it did a few years ago.