Grand Canyon National Park in August
August at Grand Canyon National Park averages a daytime high near 82°F and an overnight low around 50°F, with about 2.2" of precipitation. Visitation runs about 1.4× the park's average month, which makes August a busy month here.
- Average low
- 50°F
- Average high
- 82°F
Range across the year: 18°F to 85°F
- Precipitation
- 2.2 in
- Daylight
- 13.4 hours
Roughly 11% of the park's yearly visitors come in August: about 611,000 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 (1.5×) and the January low (0.4×).
On our Best Time to Visit score August rates 54/100 ("Fair"). Our recommended month is September: the lightest crowds of the park's good-weather months.
The daily average of about 66°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 4 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 35% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 13.4 hours of daylight in August to explore — between the 9.6-hour midwinter low and the 14.4-hour summer high.
Park-wide, 2025 drew 4,430,653 recreation visits, down 9.9% from 4,919,163 in 2024.
Across the past decade overall visitation has eased about 22.4%, 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 | 85°F / 50°F | 1.5× Busy | 53 Fair |
| August | 82°F / 50°F | 1.4× Busy | 54 Fair |
| September | 76°F / 44°F | 1.1× Average | 55 Fair |
All twelve months at Grand Canyon, with the best time to visit.
Frequently Asked Questions
August averages a daytime high near 82°F and an overnight low around 50°F at Grand Canyon National Park, with about 2.2 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 4 miles from the park, so conditions inside the park can differ, especially at other elevations.
August is busy at Grand Canyon National Park (about 1.4× the average month). Our best-time score rates it "Fair" at 54/100. Our recommended month is September.
The busiest month is July and the quietest is January. August sits at about 1.4× the park's average, or 11% of annual visitation.
A typical August sees about 611,000 recreation visits at Grand Canyon National Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Grand Canyon in August
Booking a August trip to Grand Canyon National Park? Compare hotels, cabins and vacation rentals near the park with live August availability and prices.
Top-rated places to stay near Grand Canyon
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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.