Click on a day for an hourly weather forecast
The weather in Bolonia in September is hot. The average temperatures are between 21°C and 25°C.
You can expect a few rainy days in Bolonia 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 Bolonia in September 2025.
If you’re planning to visit Bolonia in the near future, we highly recommend that you review the 14 day weather forecast for Bolonia before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 15° / 12° | 6 | 25 | 0 | 90 mm | Good | Bolonia in January |
| February | 15° / 12° | 6 | 23 | 0 | 73 mm | Good | Bolonia in February |
| March | 17° / 13° | 7 | 24 | 0 | 87 mm | Ok | Bolonia in March |
| April | 18° / 14° | 5 | 25 | 0 | 55 mm | Good | Bolonia in April |
| May | 21° / 16° | 3 | 28 | 0 | 27 mm | Good | Bolonia in May |
| June | 24° / 19° | 1 | 29 | 0 | 6 mm | Perfect | Bolonia in June |
| July | 27° / 21° | 0 | 31 | 0 | 0 mm | Perfect | Bolonia in July |
| August | 28° / 22° | 0 | 31 | 0 | 2 mm | Perfect | Bolonia in August |
| September | 25° / 21° | 2 | 28 | 0 | 24 mm | Perfect | Bolonia in September |
| October | 23° / 19° | 4 | 27 | 0 | 67 mm | Perfect | Bolonia in October |
| November | 18° / 15° | 6 | 24 | 0 | 109 mm | Good | Bolonia in November |
| December | 17° / 13° | 6 | 25 | 0 | 95 mm | Good | Bolonia in December |