Tumacácori National Historical Park in August
August at Tumacácori National Historical Park averages a daytime high near 91°F and an overnight low around 66°F, with about 3.4" of precipitation. Visitation runs about 0.4× the park's average month, which makes August a very quiet month here.
- Average low
- 66°F
- Average high
- 91°F
Range across the year: 32°F to 95°F
- Precipitation
- 3.4 in
- Daylight
- 13.2 hours
Roughly 3% of the park's yearly visitors come in August: roughly 1,100 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 Tumacácori; by contrast December, the busiest, runs about 2.2× 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 October: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 79°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 0.1 miles from the park.
August falls inside the park's busiest stretch: June, July and August together pull about 9% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.
You'll have about 13.2 hours of daylight in August to explore — between the 10-hour midwinter low and the 14-hour summer high.
Park-wide, 2024 drew 35,256 recreation visits, down 6.9% from 37,872 in 2023.
Across the past decade overall visitation has eased about 20.6%, 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 | 93°F / 67°F | 0.4× Very quiet | 58 Fair |
| August | 91°F / 66°F | 0.3× Very quiet | 64 Good |
| September | 89°F / 60°F | 0.5× Very quiet | 73 Good |
All twelve months at Tumacácori, with the best time to visit.
Things to do at Tumacácori in August
The National Park Service tags 6 Tumacácori activities for summer. Each links to the park's own page for it.
- Admire Art and Architecture · 20-60 minutes
- Become a Tumacácori Junior Ranger · 30-60 minutes
- Catch a Special Event · 30-120 minutes
- Explore the Mission Grounds · 10-60 minutes
- Go Natural in a Historical Park
- Hike the Santa Cruz River · 30 minutes
Frequently Asked Questions
August averages a daytime high near 91°F and an overnight low around 66°F at Tumacácori National Historical Park, with about 3.4 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 0.1 miles from the park, so conditions inside the park can differ, especially at other elevations.
August is very quiet at Tumacácori National Historical Park (about 0.3× the average month). Our best-time score rates it "Good" at 64/100. Our recommended month is October.
The busiest month is December and the quietest is August. August sits at about 0.3× the park's average, or 3% of annual visitation.
A typical August sees about 1,000 recreation visits at Tumacácori National Historical Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Tumacácori in August
Booking a August trip to Tumacácori National Historical Park? Compare hotels, cabins and vacation rentals near the park with live August availability and prices.
Top-rated places to stay near Tumacácori
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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.