How Crowded Is Lassen Volcanic National Park in August?

August runs about 2.3× Lassen Volcanic National Park's average month, which makes it a very busy month here — roughly 19% of the park's yearly visitors come in August.

In a typical August the park sees about 91,000 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

That makes August the 2nd-busiest of the park's twelve months, sitting between the July peak (2.8×) and the February low (0.2×).

On our Best Time to Visit score August rates 55/100 ("Fair"), versus the top-rated May at 61/100 — 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 78°F and an overnight low around 45°F, with about 0.3" of precipitation.

That average of about 62°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 57% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.

You'll have about 13.6 hours of daylight in August to explore — between the 9.1-hour midwinter low and the 14.9-hour summer high.

Park-wide, 2025 drew 504,777 recreation visits, up 41.1% from 357,651 in 2024.

Across the past decade overall visitation has eased about 8.1%, so August may feel a touch quieter than it once did.