Click on a day for an hourly weather forecast
The temperatures in Trento in September are quite cold with temperatures between 8°C and 18°C, warm clothes are a must.
You can expect rain for roughly half of the month of September in Trento. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Trento in September 2025.
If you’re planning to visit Trento in the near future, we highly recommend that you review the 14 day weather forecast for Trento before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -5° | 6 | 20 | 5 | 95 mm | Awful | Trento in January |
| February | 4° / -4° | 7 | 17 | 4 | 121 mm | Awful | Trento in February |
| March | 8° / -1° | 7 | 21 | 3 | 123 mm | Awful | Trento in March |
| April | 12° / 3° | 9 | 20 | 1 | 173 mm | Bad | Trento in April |
| May | 16° / 6° | 14 | 17 | 0 | 233 mm | Ok | Trento in May |
| June | 21° / 10° | 15 | 15 | 0 | 248 mm | Ok | Trento in June |
| July | 23° / 11° | 16 | 15 | 0 | 254 mm | Good | Trento in July |
| August | 22° / 11° | 12 | 19 | 0 | 235 mm | Ok | Trento in August |
| September | 18° / 8° | 8 | 22 | 0 | 173 mm | Ok | Trento in September |
| October | 13° / 4° | 6 | 25 | 0 | 193 mm | Ok | Trento in October |
| November | 8° / 1° | 7 | 22 | 1 | 251 mm | Bad | Trento in November |
| December | 4° / -3° | 6 | 22 | 3 | 147 mm | Awful | Trento in December |