Tumacácori National Historical Park in September
September at Tumacácori National Historical Park averages a daytime high near 89°F and an overnight low around 60°F, with about 1.8" of precipitation. Visitation runs about 0.5× the park's average month, which makes September a very quiet month here.
- Average low
- 60°F
- Average high
- 89°F
Range across the year: 32°F to 95°F
- Precipitation
- 1.8 in
- Daylight
- 12.2 hours
Roughly 4% of the park's yearly visitors come in September: roughly 1,500 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes September the 9th-busiest of the park's twelve months, sitting between the December peak (2.2×) and the August low (0.4×).
On our Best Time to Visit score September rates 73/100 ("Good"). Our recommended month is October: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 74°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 0.1 miles from the park.
Because June, July and August together draw about 9% of annual visitors, choosing September instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 12.2 hours of daylight in September 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 September may feel a touch quieter than it once did.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 91°F / 66°F | 0.3× Very quiet | 64 Good |
| September | 89°F / 60°F | 0.5× Very quiet | 73 Good |
| October | 81°F / 48°F | 0.7× Quiet | 77 Excellent |
All twelve months at Tumacácori, with the best time to visit.
Things to do at Tumacácori in September
The National Park Service tags 9 Tumacácori activities for fall. Here are 8 of them. Each links to the park's own page for it.
- Hike the Anza Trail from Tumacácori to Tubac, AZ · 2-6 hours
- Indulge Your Senses
- Join a Guided Tour · 1-4 hours · reservation required
- 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
Frequently Asked Questions
September averages a daytime high near 89°F and an overnight low around 60°F at Tumacácori National Historical Park, with about 1.8 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.
September is very quiet at Tumacácori National Historical Park (about 0.5× the average month). Our best-time score rates it "Good" at 73/100. Our recommended month is October.
The busiest month is December and the quietest is August. September sits at about 0.5× the park's average, or 4% of annual visitation.
A typical September 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 September
Booking a September trip to Tumacácori National Historical Park? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Tumacácori
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 September.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.