Roger Williams National Memorial in August
August at Roger Williams National Memorial averages a daytime high near 82°F and an overnight low around 64°F, with about 3.6" of precipitation. Visitation runs about 1.6× the park's average month, which makes August a very busy month here.
- Average low
- 64°F
- Average high
- 82°F
Range across the year: 22°F to 84°F
- Precipitation
- 3.6 in
- Daylight
- 13.7 hours
Roughly 14% of the park's yearly visitors come in August: roughly 6,500 recreation visits in a typical year, 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 (1.8×) and the January low (0.2×).
On our Best Time to Visit score August rates 50/100 ("Fair"). Our recommended month is May: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 73°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 7.5 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 42% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 13.7 hours of daylight in August to explore — between the 9-hour midwinter low and the 15-hour summer high.
Park-wide, 2025 drew 38,959 recreation visits, down 9.9% from 43,242 in 2024.
Across the past decade overall visitation has eased about 41.4%, so August may feel a touch quieter than it once did.
How August compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| July | 84°F / 65°F | 1.8× Very busy | 46 Fair |
| August | 82°F / 64°F | 1.6× Very busy | 50 Fair |
| September | 75°F / 57°F | 1.4× Busy | 55 Fair |
All twelve months at Roger Williams, with the best time to visit.
Frequently Asked Questions
August averages a daytime high near 82°F and an overnight low around 64°F at Roger Williams National Memorial, with about 3.6 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 7.5 miles from the park, so conditions inside the park can differ, especially at other elevations.
August is very busy at Roger Williams National Memorial (about 1.6× the average month). Our best-time score rates it "Fair" at 50/100. Our recommended month is May.
The busiest month is July and the quietest is January. August sits at about 1.6× the park's average, or 14% of annual visitation.
A typical August sees about 6,000 recreation visits at Roger Williams National Memorial, based on National Park Service monthly counts from 1979–2025.
Where to stay near Roger Williams in August
Booking a August trip to Roger Williams National Memorial? Compare hotels, cabins and vacation rentals near the park with live August availability and prices.
Top-rated places to stay near Roger Williams
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Visiting Roger Williams in August?
Get crowd forecasts and lodging deals for Roger Williams by email. No spam, unsubscribe anytime.
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.