Click on a day for an hourly weather forecast
The temperatures in Bacau in September are comfortable with low of 12°C and and high up to 24°C.
The wather in Bacau in September can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in Bacau in September 2025.
If you’re planning to visit Bacau in the near future, we highly recommend that you review the 14 day weather forecast for Bacau before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -5° | 3 | 16 | 12 | 49 mm | Awful | Bacau in January |
| February | 4° / -3° | 4 | 14 | 11 | 48 mm | Awful | Bacau in February |
| March | 9° / 1° | 5 | 19 | 7 | 55 mm | Bad | Bacau in March |
| April | 16° / 6° | 5 | 24 | 1 | 62 mm | Good | Bacau in April |
| May | 22° / 10° | 8 | 24 | 0 | 110 mm | Ok | Bacau in May |
| June | 26° / 14° | 9 | 21 | 0 | 162 mm | Good | Bacau in June |
| July | 28° / 16° | 6 | 25 | 0 | 83 mm | Perfect | Bacau in July |
| August | 29° / 16° | 2 | 29 | 0 | 39 mm | Good | Bacau in August |
| September | 24° / 12° | 2 | 28 | 0 | 48 mm | Perfect | Bacau in September |
| October | 16° / 7° | 5 | 26 | 1 | 75 mm | Good | Bacau in October |
| November | 10° / 3° | 3 | 24 | 3 | 31 mm | Bad | Bacau in November |
| December | 4° / -2° | 4 | 17 | 10 | 47 mm | Awful | Bacau in December |