Click on a day for an hourly weather forecast
The temperatures in Zion in September are comfortable with low of 15°C and and high up to 21°C.
You can expect about 3 to 8 days of rain in Zion during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Zion in September 2025.
If you’re planning to visit Zion in the near future, we highly recommend that you review the 14 day weather forecast for Zion before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -7° | 8 | 18 | 5 | 55 mm | Awful | Zion in January |
| February | -1° / -7° | 8 | 16 | 5 | 60 mm | Awful | Zion in February |
| March | 5° / -1° | 7 | 21 | 3 | 73 mm | Awful | Zion in March |
| April | 10° / 4° | 8 | 21 | 1 | 121 mm | Bad | Zion in April |
| May | 16° / 10° | 9 | 22 | 0 | 124 mm | Ok | Zion in May |
| June | 22° / 15° | 9 | 21 | 0 | 121 mm | Ok | Zion in June |
| July | 25° / 19° | 7 | 24 | 0 | 84 mm | Good | Zion in July |
| August | 25° / 19° | 8 | 23 | 0 | 89 mm | Good | Zion in August |
| September | 21° / 15° | 7 | 23 | 0 | 80 mm | Ok | Zion in September |
| October | 15° / 9° | 7 | 24 | 0 | 107 mm | Ok | Zion in October |
| November | 8° / 2° | 6 | 23 | 1 | 60 mm | Ok | Zion in November |
| December | 2° / -3° | 8 | 21 | 3 | 67 mm | Awful | Zion in December |