Best Time to Visit Arizona Overview: Desert Climate Seasonal Planning By Travel Tourister | Updated May 2026 Quick Answer: Arizona seasonal timing dramatically affected desert climate extreme heat summer: FALL OCTOBER-NOVEMBER (70-90°F perfect comfortable, clear skies optimal, crowds moderate manageable, hotel rates reasonable, outdoor exploration ideal, BEST OVERALL TIME) = peak optimal season comfortable weather. … Continue reading Best Time to Visit Arizona 2026: Complete Seasonal Travel Guide