How Crowded Is Valles Caldera National Preserve in August?

August runs about 1.5× Valles Caldera National Preserve's average month, which makes it a busy month here — roughly 13% of the park's yearly visitors come in August.

In a typical August the park sees roughly 8,600 recreation visits, based on National Park Service monthly counts from 2020 to 2025.

That makes August the 3rd-busiest of the park's twelve months, sitting between the September peak (1.7×) and the February low (0.4×).

On our Best Time to Visit score August rates 44/100 ("Poor"), versus the top-rated June at 54/100 — best overall balance of crowds, weather and daylight.

Typical August weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 71°F and an overnight low around 43°F, with about 3.7" of precipitation.

That average of about 57°F is a comfortable range for hiking and being outdoors all day.

August falls inside the park's busiest stretch: June, July and August together pull about 35% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.

You'll have about 13.4 hours of daylight in August to explore — between the 9.6-hour midwinter low and the 14.4-hour summer high.

Park-wide, 2025 drew 84,952 recreation visits, up 3.5% from 82,111 in 2024.

Across the past decade overall visitation has risen about 152%, so a August visit is likely to feel busier than it did a few years ago.