Click on a day for an hourly weather forecast
The temperatures in Rzeszow in September are usually low and can range between 10°C and 20°C.
You can expect about 3 to 8 days of rain in Rzeszow 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 Rzeszow in September 2026.
If you’re planning to visit Rzeszow in the near future, we highly recommend that you review the 14 day weather forecast for Rzeszow before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 0° / -4° | 5 | 8 | 18 | 58 mm | Awful | Rzeszow in January |
| February | 2° / -3° | 5 | 9 | 15 | 59 mm | Awful | Rzeszow in February |
| March | 7° / 0° | 5 | 18 | 9 | 52 mm | Bad | Rzeszow in March |
| April | 14° / 4° | 5 | 22 | 3 | 69 mm | Ok | Rzeszow in April |
| May | 19° / 8° | 9 | 22 | 0 | 122 mm | Ok | Rzeszow in May |
| June | 24° / 12° | 7 | 23 | 0 | 115 mm | Good | Rzeszow in June |
| July | 25° / 14° | 8 | 23 | 0 | 136 mm | Good | Rzeszow in July |
| August | 26° / 14° | 4 | 27 | 0 | 77 mm | Perfect | Rzeszow in August |
| September | 20° / 10° | 5 | 25 | 0 | 72 mm | Good | Rzeszow in September |
| October | 13° / 6° | 5 | 25 | 1 | 65 mm | Ok | Rzeszow in October |
| November | 8° / 3° | 5 | 20 | 5 | 54 mm | Bad | Rzeszow in November |
| December | 2° / -2° | 6 | 12 | 13 | 56 mm | Awful | Rzeszow in December |