Click on a day for an hourly weather forecast
The weather in Tucson in September is hot. The average temperatures are between 22°C and 34°C.
You can expect a few rainy days in Tucson during September, but usually the weather is comfortable in September.
Our weather forecast can give you a great sense of what weather to expect in Tucson in September 2025.
If you’re planning to visit Tucson in the near future, we highly recommend that you review the 14 day weather forecast for Tucson before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 18° / 7° | 1 | 29 | 0 | 25 mm | Good | Tucson in January |
| February | 19° / 8° | 1 | 27 | 0 | 18 mm | Good | Tucson in February |
| March | 23° / 11° | 1 | 30 | 0 | 9 mm | Perfect | Tucson in March |
| April | 27° / 13° | 1 | 30 | 0 | 4 mm | Perfect | Tucson in April |
| May | 31° / 16° | 0 | 31 | 0 | 4 mm | Good | Tucson in May |
| June | 37° / 22° | 0 | 30 | 0 | 9 mm | Ok | Tucson in June |
| July | 36° / 25° | 4 | 27 | 0 | 63 mm | Ok | Tucson in July |
| August | 36° / 25° | 3 | 28 | 0 | 53 mm | Ok | Tucson in August |
| September | 34° / 22° | 2 | 28 | 0 | 43 mm | Ok | Tucson in September |
| October | 29° / 16° | 1 | 30 | 0 | 17 mm | Good | Tucson in October |
| November | 23° / 11° | 1 | 29 | 0 | 15 mm | Perfect | Tucson in November |
| December | 18° / 7° | 1 | 30 | 0 | 21 mm | Good | Tucson in December |