Big Bend National Park in August
August at Big Bend National Park averages a daytime high near 91°F and an overnight low around 69°F, with about 1.9" of precipitation. Visitation runs about 0.4× the park's average month, which makes August a very quiet month here.
- Average low
- 69°F
- Average high
- 91°F
Range across the year: 37°F to 94°F
- Precipitation
- 1.9 in
- Daylight
- 13.1 hours
Roughly 4% of the park's yearly visitors come in August: about 17,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
It is the quietest month of the year at Big Bend; by contrast March, the busiest, runs about 2× the average — so August is the easiest time to have the place largely to yourself.
On our Best Time to Visit score August rates 64/100 ("Good"). Our recommended month is September: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 80°F is hot, with afternoons near 91°F to plan the day around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 2.5 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 12% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 13.1 hours of daylight in August to explore — between the 10.1-hour midwinter low and the 13.9-hour summer high.
Park-wide, 2025 drew 568,104 recreation visits, up 1.2% from 561,458 in 2024.
Across the past decade overall visitation has risen about 29.3%, 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 | 92°F / 70°F | 0.5× Very quiet | 60 Good |
| August | 91°F / 69°F | 0.4× Very quiet | 64 Good |
| September | 86°F / 63°F | 0.6× Quiet | 78 Excellent |
All twelve months at Big Bend, with the best time to visit.
Things to do at Big Bend in August
The National Park Service tags 12 Big Bend activities for summer. Here are 8 of them. Each links to the park's own page for it.
- Backpacking Big Bend · reservation required
- Become a Big Bend Expert
- Birdwatch at Cottonwood Campground · 15-60 minutes
- Birdwatch at Rio Grande Village Nature Trail · 15-45 minutes
- Hike Into Santa Elena Canyon
- Hike the Lost Mine Trail
- See the Rio Grande
- View the Night Sky
Frequently Asked Questions
August averages a daytime high near 91°F and an overnight low around 69°F at Big Bend National Park, with about 1.9 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 2.5 miles from the park, so conditions inside the park can differ, especially at other elevations.
August is very quiet at Big Bend National Park (about 0.4× the average month). Our best-time score rates it "Good" at 64/100. Our recommended month is September.
The busiest month is March and the quietest is August. August sits at about 0.4× the park's average, or 4% of annual visitation.
A typical August sees about 17,000 recreation visits at Big Bend National Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Big Bend in August
Booking a August trip to Big Bend National Park? Compare hotels, cabins and vacation rentals near the park with live August availability and prices.
Top-rated places to stay near Big Bend
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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.