Acadia National Park in August
August at Acadia National Park averages a daytime high near 78°F and an overnight low around 60°F, with about 3.5" of precipitation. Visitation runs about 2.5× the park's average month, which makes August a very busy month here.
- Average low
- 60°F
- Average high
- 78°F
Range across the year: 15°F to 79°F
- Precipitation
- 3.5 in
- Daylight
- 13.9 hours
Roughly 21% of the park's yearly visitors come in August: about 770,000 recreation visits in a typical year, 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"). Our recommended month is May: the lightest crowds of the park's good-weather months.
The daily average of about 69°F is a comfortable range for hiking and being outdoors all day. These figures are 1991–2020 NOAA climate normals from the nearest station, about 2.5 miles from the park.
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.
How August compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| July | 79°F / 60°F | 2.4× Very busy | 53 Fair |
| August | 78°F / 60°F | 2.5× Very busy | 50 Fair |
| September | 71°F / 53°F | 2.0× Very busy | 49 Fair |
All twelve months at Acadia, with the best time to visit.
Things to do at Acadia in August
The National Park Service tags 83 Acadia activities for summer. Here are 8 of them. Each links to the park's own page for it.
Frequently Asked Questions
August averages a daytime high near 78°F and an overnight low around 60°F at Acadia National Park, with about 3.5 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 2.5 miles from the park, so conditions inside the park can differ, especially at other elevations.
August is very busy at Acadia National Park (about 2.5× the average month). Our best-time score rates it "Fair" at 50/100. Our recommended month is May.
The busiest month is August and the quietest is February. August sits at about 2.5× the park's average, or 21% of annual visitation.
A typical August sees about 770,000 recreation visits at Acadia National Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Acadia in August
Booking a August trip to Acadia National Park? Compare hotels, cabins and vacation rentals near the park with live August availability and prices.
Top-rated places to stay near Acadia
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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See the full ranking of the best national parks to visit in August.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.