Click on a day for an hourly weather forecast
The temperatures in Bulgaria in September are comfortable with low of 11°C and and high up to 24°C.
You can expect about 3 to 8 days of rain in Bulgaria 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 Bulgaria in September 2025.
If you’re planning to visit Bulgaria in the near future, we highly recommend that you review the 14 day weather forecast for Bulgaria before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -4° | 7 | 11 | 13 | 75 mm | Awful | Bulgaria in January |
| February | 6° / -2° | 5 | 12 | 11 | 49 mm | Awful | Bulgaria in February |
| March | 9° / 1° | 6 | 15 | 10 | 87 mm | Bad | Bulgaria in March |
| April | 15° / 4° | 6 | 21 | 3 | 84 mm | Ok | Bulgaria in April |
| May | 20° / 8° | 10 | 21 | 0 | 101 mm | Ok | Bulgaria in May |
| June | 24° / 11° | 10 | 20 | 0 | 131 mm | Good | Bulgaria in June |
| July | 27° / 13° | 6 | 25 | 0 | 87 mm | Perfect | Bulgaria in July |
| August | 29° / 14° | 3 | 28 | 0 | 40 mm | Good | Bulgaria in August |
| September | 24° / 11° | 3 | 27 | 0 | 45 mm | Perfect | Bulgaria in September |
| October | 17° / 7° | 4 | 26 | 1 | 65 mm | Good | Bulgaria in October |
| November | 12° / 4° | 4 | 24 | 2 | 40 mm | Bad | Bulgaria in November |
| December | 5° / -2° | 6 | 16 | 10 | 56 mm | Awful | Bulgaria in December |