Grand Portage National Monument in August
August at Grand Portage National Monument averages a daytime high near 73°F and an overnight low around 52°F, with about 3" of precipitation. Visitation runs about 3.1× the park's average month, which makes August a very busy month here.
- Average low
- 52°F
- Average high
- 73°F
Range across the year: 1°F to 74°F
- Precipitation
- 3.0 in
- Daylight
- 14.1 hours
Roughly 26% of the park's yearly visitors come in August: about 23,000 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 Grand Portage; January, the quietest, runs only about 0.2× the average — a 21-to-1 swing between high and low season.
On our Best Time to Visit score August rates 46/100 ("Fair"). Our recommended month is September: the lightest crowds of the park's good-weather months.
The daily average of about 63°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 3.4 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 64% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 14.1 hours of daylight in August to explore — between the 8.2-hour midwinter low and the 15.8-hour summer high.
Park-wide, 2025 drew 85,734 recreation visits, down 3.6% from 88,931 in 2024.
How August compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| July | 74°F / 52°F | 2.8× Very busy | 54 Fair |
| August | 73°F / 52°F | 3.1× Very busy | 46 Fair |
| September | 65°F / 44°F | 1.6× Busy | 55 Fair |
All twelve months at Grand Portage, with the best time to visit.
Things to do at Grand Portage in August
The National Park Service tags 16 Grand Portage activities for summer. Here are 8 of them. Each links to the park's own page for it.
- Participate in a Ranger Walk or Talk · 30-60 minutes
- Visit the Reconstructed North West Company Depot · 1-3 hours
- Activities for a Full Day or More · 1-3 days · reservation required
- Browse the Bookstore
- Explore Anishinaabe (Ojibwe) Culture · 30-60 minutes
- Hike Grand Portage Trails
- Investigate Archeology at the Heritage Center · 30-60 minutes · reservation required
- Stamp Your Passport During Your Visit · 2-5 minutes
Frequently Asked Questions
August averages a daytime high near 73°F and an overnight low around 52°F at Grand Portage National Monument, with about 3 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 3.4 miles from the park, so conditions inside the park can differ, especially at other elevations.
August is very busy at Grand Portage National Monument (about 3.1× the average month). Our best-time score rates it "Fair" at 46/100. Our recommended month is September.
The busiest month is August and the quietest is January. August sits at about 3.1× the park's average, or 26% of annual visitation.
A typical August sees about 23,000 recreation visits at Grand Portage National Monument, based on National Park Service monthly counts from 1979–2025.
Where to stay near Grand Portage in August
Booking a August trip to Grand Portage National Monument? Compare hotels, cabins and vacation rentals near the park with live August availability and prices.
Top-rated places to stay near Grand Portage
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.