How Crowded Is Acadia National Park in August?

August runs about 2.5× Acadia National Park's average month, which makes it a very busy month here — roughly 21% of the park's yearly visitors come in August.

In a typical August the park sees about 770,000 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

It is the single busiest month of the year at Acadia; February, the quietest, runs only about 0× the average — a 51-to-1 swing between high and low season.

On our Best Time to Visit score August rates 50/100 ("Fair"), versus the top-rated May at 63/100 — 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 60°F, with about 3.5" of precipitation.

That average of about 69°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 56% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.

You'll have about 13.9 hours of daylight in August to explore — between the 8.7-hour midwinter low and the 15.3-hour summer high.

Park-wide, 2025 drew 4,079,318 recreation visits, up 3% from 3,961,661 in 2024.

Across the past decade overall visitation has risen about 21.3%, so a August visit is likely to feel busier than it did a few years ago.