Sedona in August

March through May and September through November hit the sweet spot — daytime temps in the 70s-80s, cool nights perfect for stargazing. Summer is brutal with temps over 100°F, though morning hikes are doable if you start by 6 AM. Winter brings snow to the higher elevations and chilly nights, but sunny days in the 50s-60s make it pleasant for exploring. Avoid spring break and October if you hate crowds — hotel prices double and popular trails feel like rush hour. The shoulder seasons of late February and early December offer the best deals. Here's what nobody tells you: monsoon season in July and August brings spectacular lightning shows but also flash flood risks in slot canyons.