Roger Williams National Memorial in May
May at Roger Williams National Memorial averages a daytime high near 69°F and an overnight low around 49°F, with about 3.4" of precipitation. Visitation runs about 1.2× the park's average month, which makes May a busy month here.
- Average low
- 49°F
- Average high
- 69°F
Range across the year: 22°F to 84°F
- Precipitation
- 3.4 in
- Daylight
- 14.4 hours
Roughly 10% of the park's yearly visitors come in May: roughly 4,800 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes May the 6th-busiest of the park's twelve months, sitting between the July peak (1.8×) and the January low (0.2×).
May is our recommended month at Roger Williams: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 59°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.
Because June, July and August together draw about 42% of annual visitors, choosing May instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 14.4 hours of daylight in May 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 May may feel a touch quieter than it once did.
How May compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| April | 59°F / 40°F | 0.9× Average | 52 Fair |
| May | 69°F / 49°F | 1.2× Busy | 58 Fair |
| June | 78°F / 59°F | 1.6× Very busy | 57 Fair |
All twelve months at Roger Williams, with the best time to visit.
Frequently Asked Questions
May averages a daytime high near 69°F and an overnight low around 49°F at Roger Williams National Memorial, with about 3.4 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.
May is busy at Roger Williams National Memorial (about 1.2× the average month). Our best-time score rates it "Fair" at 58/100. May is our recommended month for this park.
The busiest month is July and the quietest is January. May sits at about 1.2× the park's average, or 10% of annual visitation.
A typical May sees about 5,000 recreation visits at Roger Williams National Memorial, based on National Park Service monthly counts from 1979–2025.
Where to stay near Roger Williams in May
Booking a May trip to Roger Williams National Memorial? Compare hotels, cabins and vacation rentals near the park with live May 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 May?
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 May.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.