‹ Grand Canyon weather by month
Typical September weather
Grand Canyon
Arizona · September
76° days
44° nights
about 3 rainy days · 12½ hours of daylight
What to pack
- Sweater
- Sunscreen
- Layers
What September feels like
The storms fade, the crowds thin after Labor Day, and the corridor trails are at their kindest — there is a reason September permits for Phantom Ranch are the hardest to get. Nights on the rim are cold enough for a real jacket even when the afternoon has felt like summer.
Expect about 3 days with real rain — enough to notice, not enough to plan around.
The numbers
| Typical high | 76° |
|---|---|
| Typical low | 44° |
| Days with real rain | 3 |
| Total rain | 1.5 in |
| Sunrise / sunset (mid-month) | 6:11 am / 6:35 pm |