Click on a day for an hourly weather forecast
The temperatures in Nis 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 Nis 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 Nis in September 2025.
If you’re planning to visit Nis in the near future, we highly recommend that you review the 14 day weather forecast for Nis before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 2° / -5° | 8 | 10 | 13 | 84 mm | Awful | Nis in January |
| February | 5° / -2° | 5 | 15 | 9 | 65 mm | Awful | Nis in February |
| March | 10° / 1° | 6 | 20 | 4 | 92 mm | Bad | Nis in March |
| April | 17° / 6° | 6 | 24 | 1 | 73 mm | Good | Nis in April |
| May | 22° / 9° | 8 | 23 | 0 | 108 mm | Ok | Nis in May |
| June | 26° / 12° | 9 | 21 | 0 | 116 mm | Good | Nis in June |
| July | 29° / 14° | 4 | 27 | 0 | 83 mm | Good | Nis in July |
| August | 30° / 15° | 2 | 29 | 0 | 42 mm | Good | Nis in August |
| September | 24° / 11° | 3 | 27 | 0 | 49 mm | Perfect | Nis in September |
| October | 17° / 7° | 5 | 26 | 0 | 70 mm | Good | Nis in October |
| November | 12° / 4° | 4 | 25 | 1 | 61 mm | Ok | Nis in November |
| December | 4° / -2° | 6 | 16 | 8 | 70 mm | Awful | Nis in December |