Grand Canyon · August · Arizona
Grand Canyon National Park in August
August is a fair month for Grand Canyon National Park, with some limitations. Expect peak crowds. Highs average 87°F and lows 63°F, with about 0.88 inches of rain.
August is rated fair at Grand Canyon. Consider Apr–May, Oct instead.
What to expect
Honest take: August is not the month for Grand Canyon. The rims are warm and crowded, but the inner canyon is deadly hot, often over 110°F at Phantom Ranch. Monsoon storms build in the afternoons.
Going down is optional; coming back up is mandatory. Plan on twice as long for the climb out as for the hike down.
Good to know
- Best months overall: Apr–May, Oct.
- Closest airport: Phoenix (PHX), about 3.5 hours; Flagstaff (FLG), about 1.5 hours.
- Before you go: The North Rim is seasonal (normally mid-May to mid-October). Its lodge and many facilities were destroyed by the 2025 Dragon Bravo Fire, so check current North Rim status before planning a visit. Check current conditions on nps.gov.
Questions
Is August a good time to visit Grand Canyon National Park?
August is a fair month for Grand Canyon National Park, with some limitations. Expect peak crowds. Highs average 87°F and lows 63°F, with about 0.88 inches of rain.
What is the weather like in Grand Canyon National Park in August?
Highs average 87°F and lows 63°F, with about 0.88 inches of rain. Conditions are fair this month, so check the month-by-month ratings before you commit.
How crowded is Grand Canyon National Park in August?
August brings peak crowds to Grand Canyon National Park. Go early in the day and book lodging ahead.