Spring is one of the best seasons to hike the Grand Canyon. Temperatures on the rim may be a bit cold still, but step below the rim and you’ll normally have a great hiking experience from mid-March through mid-May.
Summer is dangerously hot in the Grand Canyon and generally not a great time to hike. Havasu Falls can be fun because of the great waterfalls to go for a swim below, but the rest of the hikes are generally not enjoyable this time of year.
Fall is the best time to hike the Canyon! Temperatures are great, the North Rim is still open and good times are had by all! Permits go fast, but so some planning and you will be rewarded by perfect Grand Canyon hiking weather.
Winter is not a bad time to hike the Grand Canyon. You do sometimes have to contend with snow and ice and the North Rim is closed, but the main corridor trials are still accessible and fun. You’ll also have the place to yourself, which is great if you want some solitude.