Coronado National Memorial in September
September at Coronado National Memorial averages a daytime high near 84°F and an overnight low around 58°F, with about 2.1" of precipitation. Visitation runs about 1× the park's average month, which makes September an average month here.
- Average low
- 58°F
- Average high
- 84°F
Range across the year: 33°F to 92°F
- Precipitation
- 2.1 in
- Daylight
- 12.2 hours
Roughly 8% of the park's yearly visitors come in September: about 11,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes September the 7th-busiest of the park's twelve months, sitting between the March peak (1.2×) and the June low (0.9×).
On our Best Time to Visit score September rates 76/100 ("Excellent"). Our recommended month is May: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 71°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 0.3 miles from the park.
Because June, July and August together draw about 22% 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, 2025 drew 179,216 recreation visits, up 9% from 164,426 in 2024.
Across the past decade overall visitation has risen about 13.3%, so a September visit is likely to feel busier than it did a few years ago.
How September compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| August | 87°F / 62°F | 0.9× Average | 70 Good |
| September | 84°F / 58°F | 1.0× Average | 76 Excellent |
| October | 77°F / 50°F | 0.9× Average | 79 Excellent |
All twelve months at Coronado, with the best time to visit.
Things to do at Coronado in September
The National Park Service tags 3 Coronado activities for fall. Each links to the park's own page for it.
- Birding at Coronado · 15-120 minutes
- Visit Coronado Cave · 1-2 hours
- Visit Coronado Visitor Center · 10-25 minutes
Frequently Asked Questions
September averages a daytime high near 84°F and an overnight low around 58°F at Coronado National Memorial, with about 2.1 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 0.3 miles from the park, so conditions inside the park can differ, especially at other elevations.
September is average at Coronado National Memorial (about 1.0× the average month). Our best-time score rates it "Excellent" at 76/100. Our recommended month is May.
The busiest month is March and the quietest is June. September sits at about 1.0× the park's average, or 8% of annual visitation.
A typical September sees about 11,000 recreation visits at Coronado National Memorial, based on National Park Service monthly counts from 1979–2025.
Where to stay near Coronado in September
Booking a September trip to Coronado National Memorial? Compare hotels, cabins and vacation rentals near the park with live September availability and prices.
Top-rated places to stay near Coronado
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.