Eugene O'Neill National Historic Site in August
August at Eugene O'Neill National Historic Site averages a daytime high near 83°F and an overnight low around 61°F. Visitation runs about 1× the park's average month, which makes August an average month here.
- Average low
- 61°F
- Average high
- 83°F
Range across the year: 41°F to 83°F
- Precipitation
- 0.0 in
- Daylight
- 13.5 hours
Roughly 9% of the park's yearly visitors come in August: roughly 1,000 recreation visits in a typical year, based on National Park Service monthly counts from 1985 to 2025.
That makes August the 6th-busiest of the park's twelve months, sitting between the May peak (1.3×) and the January low (0.7×).
On our Best Time to Visit score August rates 69/100 ("Good"). Our recommended month is October: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 72°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 6.4 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 29% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 13.5 hours of daylight in August to explore — between the 9.4-hour midwinter low and the 14.6-hour summer high.
Park-wide, 2025 drew 14,881 recreation visits, down 15.7% from 17,653 in 2024.
Across the past decade overall visitation has risen about 208.6%, 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 | 83°F / 62°F | 1.1× Average | 63 Good |
| August | 83°F / 61°F | 1.0× Average | 69 Good |
| September | 80°F / 60°F | 1.3× Busy | 51 Fair |
All twelve months at Eugene O'Neill, with the best time to visit.
Frequently Asked Questions
August averages a daytime high near 83°F and an overnight low around 61°F at Eugene O'Neill National Historic Site. These are 1991–2020 NOAA climate normals from the nearest station, about 6.4 miles from the park, so conditions inside the park can differ, especially at other elevations.
August is average at Eugene O'Neill National Historic Site (about 1.0× the average month). Our best-time score rates it "Good" at 69/100. Our recommended month is October.
The busiest month is May and the quietest is January. August sits at about 1.0× the park's average, or 9% of annual visitation.
A typical August sees about 1,000 recreation visits at Eugene O'Neill National Historic Site, based on National Park Service monthly counts from 1985–2025.
Where to stay near Eugene O'Neill in August
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Top-rated places to stay near Eugene O'Neill
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See the full ranking of the best national parks to visit in August.
Source: National Park Service Visitor Use Statistics (1985–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.