How Crowded Is Lake Mead National Recreation Area in May?

May runs about 1.2× Lake Mead National Recreation Area's average month, which makes it a busy month here — roughly 10% of the park's yearly visitors come in May.

In a typical May the park sees about 689,000 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

That makes May the 3rd-busiest of the park's twelve months, sitting between the June peak (1.3×) and the December low (0.7×).

On our Best Time to Visit score May rates 50/100 ("Fair"), versus the top-rated November at 69/100 — 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 93°F and an overnight low around 65°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 30% 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 13.9 hours of daylight in May to explore — between the 9.6-hour midwinter low and the 14.4-hour summer high.

Park-wide, 2025 drew 6,135,586 recreation visits, down 4.3% from 6,412,854 in 2024.

Across the past decade overall visitation has eased about 17.4%, so May may feel a touch quieter than it once did.