How Crowded Is City Of Rocks in September?
September is a very busy month at City Of Rocks National Reserve, running about 1.6× the park's average month — roughly 14% of the year's visitors come in September. That puts it between the June peak and the February low. Overall our best-time score rates September as "Fair" for a visit. Typical September weather averages a high near 77°F and a low around 47°F, with about 1.1" of precipitation. You'll get about 12.3 hours of daylight to explore.
Frequently Asked Questions
September is very busy at City Of Rocks National Reserve (about 1.6× the average month). Our best-time score rates it "Fair". The single best month overall is July.
The busiest month is June and the quietest is February. September sits at about 1.6× the park's average, or 14% of annual visitation.
Source: National Park Service Visitor Use Statistics (1992–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.