Chamizal National Memorial in September
September at Chamizal National Memorial averages a daytime high near 88°F and an overnight low around 65°F, with about 1.5" of precipitation. Visitation runs about 1.2× the park's average month, which makes September a busy month here.
- Average low
- 65°F
- Average high
- 88°F
Range across the year: 34°F to 97°F
- Precipitation
- 1.5 in
- Daylight
- 12.2 hours
Roughly 10% of the park's yearly visitors come in September: roughly 6,300 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes September the 4th-busiest of the park's twelve months, sitting between the July peak (2.8×) and the January low (0.4×).
On our Best Time to Visit score September rates 60/100 ("Good"). Our recommended month is October: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 77°F is warm enough that midday heat is worth planning around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 5.5 miles from the park.
Because June, July and August together draw about 42% 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 9.9-hour midwinter low and the 14.1-hour summer high.
Park-wide, 2024 drew 6,627 recreation visits, down 20.4% from 8,324 in 2023.
Across the past decade overall visitation has eased about 82.7%, 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 | 94°F / 72°F | 1.0× Average | 45 Fair |
| September | 88°F / 65°F | 1.2× Busy | 60 Good |
| October | 79°F / 54°F | 0.7× Quiet | 85 Excellent |
All twelve months at Chamizal, with the best time to visit.
Things to do at Chamizal in September
The National Park Service tags 4 Chamizal activities for fall. Each links to the park's own page for it.
Frequently Asked Questions
September averages a daytime high near 88°F and an overnight low around 65°F at Chamizal National Memorial, with about 1.5 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 5.5 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is busy at Chamizal National Memorial (about 1.2× the average month). Our best-time score rates it "Good" at 60/100. Our recommended month is October.
The busiest month is July and the quietest is January. September sits at about 1.2× the park's average, or 10% of annual visitation.
A typical September sees about 6,000 recreation visits at Chamizal National Memorial, based on National Park Service monthly counts from 1979–2025.
Where to stay near Chamizal in September
Booking a September trip to Chamizal National Memorial? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Chamizal
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.