Open Travel Guide
Weather in Arizona

Arizona Weather & Climate Guide 2026

Arizona's climate in numbers — the months that flatter it, the ones to avoid, and what to pack.

Arizona is a southwestern US state renowned for its dramatic desert landscapes, ancient Native American cultures, and iconic natural wonders. Home to the Grand Canyon, one of the world's most visited natural sites, Arizona offers visitors a stunning contrast of red rock formations in Sedona, towering saguaro cacti in the Sonoran Desert, forested mountains around Flagstaff, and the otherworldly mesas of Monument Valley.

Best time to visit

Recommendation

Best: October to April

Best Reason: Mild, sunny weather perfect for hiking, sightseeing, and outdoor activities. Phoenix temperatures range from 65-85°F (18-29°C) and Sedona from 50-75°F — ideal conditions across the state.

Peak Season: January to March

Peak Reason: Winter snowbirds flock to Phoenix and Scottsdale. Perfect weather, spring training baseball (MLB teams), major golf tournaments. Hotel rates at their highest.

Shoulder Season: October-November and April-May

Shoulder Reason: Excellent weather with lower crowds and prices than peak winter season. Fall foliage in Flagstaff (October) is beautiful.

Avoid: June to August

Avoid Reason: Extreme heat exceeding 110-115°F (43-46°C) in Phoenix and the low desert makes outdoor activity dangerous. Indoor activities and Flagstaff's cooler climate (85°F in summer) are the alternatives.