Click on a day for an hourly weather forecast
The temperatures in Alessandria in September are comfortable with low of 15°C and and high up to 26°C.
You can expect about 3 to 8 days of rain in Alessandria 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 Alessandria in September 2026.
If you’re planning to visit Alessandria in the near future, we highly recommend that you review the 14 day weather forecast for Alessandria before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 10° / 0° | 9 | 22 | 1 | 157 mm | Bad | Alessandria in January |
| February | 11° / 1° | 7 | 20 | 1 | 159 mm | Bad | Alessandria in February |
| March | 14° / 2° | 8 | 23 | 0 | 161 mm | Ok | Alessandria in March |
| April | 18° / 6° | 6 | 24 | 0 | 104 mm | Good | Alessandria in April |
| May | 22° / 12° | 6 | 25 | 0 | 93 mm | Good | Alessandria in May |
| June | 28° / 17° | 5 | 25 | 0 | 84 mm | Perfect | Alessandria in June |
| July | 31° / 20° | 2 | 29 | 0 | 42 mm | Good | Alessandria in July |
| August | 31° / 19° | 3 | 28 | 0 | 60 mm | Good | Alessandria in August |
| September | 26° / 15° | 4 | 26 | 0 | 88 mm | Perfect | Alessandria in September |
| October | 20° / 9° | 6 | 25 | 0 | 131 mm | Good | Alessandria in October |
| November | 16° / 5° | 7 | 23 | 0 | 168 mm | Ok | Alessandria in November |
| December | 11° / 2° | 4 | 26 | 1 | 85 mm | Ok | Alessandria in December |