Havasupai Conditions and Average Climate
Monsoon season is typically July through early September, bringing heavy afternoon thunderstorms and a chance of flash floods. Flash floods are not a huge threat if you are aware of your surroundings and keep an eye on the weather. If viewed safely, they will show you an unforgettable display of nature's power.
Before you plan your trip, review the weather averages for Havasu Falls. Temperatures will drop 5 degrees on average for every 1,000 feet in elevation you climb. Therefore, the temperatures at the trailhead (Hualapai Hilltop), are over 10 degrees cooler than the campground. If you want to learn more about area weather, check out our page on Grand Canyon weather.
Average Monthly Weather for Supai Village
Month |
High Temp |
Low Temp |
Days of Rain |
January |
57° |
33° |
3 |
February |
64° |
37° |
2 |
March |
71° |
42° |
4 |
April |
79° |
47° |
1 |
May |
89° |
55° |
1 |
June |
100° |
64° |
1 |
July |
103° |
69° |
4 |
August |
101° |
67° |
4 |
September |
94° |
60° |
2 |
Ocotber |
81° |
49° |
2 |
November |
66° |
39° |
2 |
December |
57° |
33° |
2 |