Click on a day for an hourly weather forecast
The temperatures in Campobasso in September are comfortable with low of 14°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in Campobasso 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 Campobasso in September 2026.
If you’re planning to visit Campobasso in the near future, we highly recommend that you review the 14 day weather forecast for Campobasso before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 8° / 1° | 9 | 14 | 8 | 130 mm | Awful | Campobasso in January |
| February | 9° / 2° | 7 | 15 | 6 | 138 mm | Awful | Campobasso in February |
| March | 12° / 3° | 9 | 19 | 4 | 134 mm | Awful | Campobasso in March |
| April | 16° / 6° | 8 | 21 | 1 | 126 mm | Ok | Campobasso in April |
| May | 20° / 9° | 8 | 23 | 0 | 147 mm | Ok | Campobasso in May |
| June | 25° / 14° | 9 | 21 | 0 | 147 mm | Good | Campobasso in June |
| July | 29° / 17° | 7 | 24 | 0 | 114 mm | Ok | Campobasso in July |
| August | 30° / 18° | 5 | 26 | 0 | 95 mm | Good | Campobasso in August |
| September | 24° / 14° | 6 | 24 | 0 | 103 mm | Perfect | Campobasso in September |
| October | 19° / 11° | 5 | 26 | 0 | 99 mm | Good | Campobasso in October |
| November | 14° / 7° | 7 | 22 | 1 | 134 mm | Ok | Campobasso in November |
| December | 9° / 3° | 6 | 21 | 5 | 103 mm | Bad | Campobasso in December |