‹ Zion National Park weather by month
Typical August weather
Zion National Park
Utah · August
98° days
69° nights
about 3 rainy days · 13½ hours of daylight
What to pack
- Swimsuit
- Sunscreen
- Layers
- Water bottle
What August feels like
Peak monsoon, with storms that can turn a dry wash into a wall of water from miles away. The Narrows and the Subway close on flash-flood days, so build slack into the plan and treat the closures as the gift they are.
Expect about 3 days with real rain — enough to notice, not enough to plan around. Most afternoons push past 90°.
The numbers
| Typical high | 98° |
|---|---|
| Typical low | 69° |
| Days with real rain | 3 |
| Total rain | 1.6 in |
| Sunrise / sunset (mid-month) | 6:48 am / 8:23 pm |