Saint Croix National Scenic Riverway in August
August at Saint Croix National Scenic Riverway averages a daytime high near 79°F and an overnight low around 58°F, with about 4.3" of precipitation. Visitation runs about 2.5× the park's average month, which makes August a very busy month here.
- Average low
- 58°F
- Average high
- 79°F
Range across the year: 5°F to 81°F
- Precipitation
- 4.3 in
- Daylight
- 13.9 hours
Roughly 21% of the park's yearly visitors come in August: about 160,000 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 (3.1×) and the December low (0×).
On our Best Time to Visit score August rates 59/100 ("Fair"). Our recommended month is May: the lightest crowds of the park's good-weather months.
The daily average of about 68°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 10.6 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 66% 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 8.5-hour midwinter low and the 15.5-hour summer high.
Park-wide, 2025 drew 852,296 recreation visits, down 5.4% from 900,828 in 2024.
Across the past decade overall visitation has risen about 20.9%, 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 | 81°F / 60°F | 3.1× Very busy | 50 Fair |
| August | 79°F / 58°F | 2.5× Very busy | 59 Fair |
| September | 71°F / 50°F | 1.5× Busy | 63 Good |
All twelve months at Saint Croix, with the best time to visit.
Frequently Asked Questions
August averages a daytime high near 79°F and an overnight low around 58°F at Saint Croix National Scenic Riverway, with about 4.3 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 10.6 miles from the park, so conditions inside the park can differ, especially at other elevations.
August is very busy at Saint Croix National Scenic Riverway (about 2.5× the average month). Our best-time score rates it "Fair" at 59/100. Our recommended month is May.
The busiest month is July and the quietest is December. August sits at about 2.5× the park's average, or 21% of annual visitation.
A typical August sees about 160,000 recreation visits at Saint Croix National Scenic Riverway, based on National Park Service monthly counts from 1979–2025.
Where to stay near Saint Croix in August
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Top-rated places to stay near Saint Croix
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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.