How Crowded Is Puʻukoholā Heiau National Historic Site in May?

May runs about 1.1× Puʻukoholā Heiau National Historic Site's average month, which makes it an average month here — roughly 9% of the park's yearly visitors come in May.

In a typical May the park sees roughly 8,600 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

That makes May the 4th-busiest of the park's twelve months, sitting between the February peak (1.3×) and the September low (0.8×).

On our Best Time to Visit score May rates 55/100 ("Fair"), versus the top-rated September at 77/100 — pleasant weather with noticeably thinner crowds (shoulder season).

Typical May weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 86°F and an overnight low around 72°F, with about 0.5" of precipitation.

That average of about 79°F is warm enough that midday heat is worth planning around.

Because June, July and August together draw about 23% 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 13 hours of daylight in May to explore — near the year-round maximum.

Park-wide, 2024 drew 27,507 recreation visits, up 18.6% from 23,197 in 2023.

Across the past decade overall visitation has eased about 66%, so May may feel a touch quieter than it once did.