January: Tucson's winter is the payoff for its summers: sunny, mid-60s days on trails that hit triple digits in June. The giant saguaros are the same year-round, but you can climb among them all day without heat stress.
February: Another sunny, mild month in the Sonoran Desert, before spring crowds. It's ideal for the long climbs to Wasson Peak or up the Rincons.
March: Desert wildflowers peak in March and early April after winter rain, with poppies, lupine and brittlebush below the saguaros. Days sit in the 70s.
December: Sunny winter hiking in the 60s. The desert is quiet in early December before holiday visitors arrive.
Permits and reservations
We found no timed entry or entry reservation system.
Backcountry camping permit: Reservations are required for backcountry camping, and permits are on Recreation.gov at $8 per campsite per night.