How Crowded Is Channel Islands National Park in August?

August runs about 1.3× Channel Islands National Park's average month, which makes it a busy month here — roughly 11% of the park's yearly visitors come in August.

In a typical August the park sees about 35,000 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 (1.5×) and the January low (0.5×).

On our Best Time to Visit score August rates 58/100 ("Fair"), versus the top-rated November at 62/100 — pleasant weather with noticeably thinner crowds (shoulder season).

Typical August weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 72°F and an overnight low around 57°F.

That average of about 64°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 13.3 hours of daylight in August to explore — between the 9.7-hour midwinter low and the 14.3-hour summer high.

Park-wide, 2025 drew 227,186 recreation visits, down 13.5% from 262,581 in 2024.

Across the past decade overall visitation has eased about 13.6%, so August may feel a touch quieter than it once did.