The Grand Canyon
The South Rim is the most famous part of the Grand Canyon, and the busiest. It’s the place you may have visited through your Viewmaster as a child, or seen in National Geographic. See It Now: Photo Tour Best Time to Visit Check the average highs, lows, and rainfall for your planned travel dates on our Grand Canyon Weather page. • Summer is very busy, and if it’s your only option, it’s manageable with advance planning. • The weather is mild during the “shoulder” seasons in April-May and September-October and the park is less crowded. • Rainfall is lowest in May and June, and highest in August when summer rainstorms can put on spectacular shows. • In mid-winter the sun will only reach the bottom of the canyon for a few hours at mid-day, and winter night temperatures are often below freezing.
