Click on a day for an hourly weather forecast
The temperatures in Liberec in September are usually low and can range between 10°C and 19°C.
You can expect about 3 to 8 days of rain in Liberec 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 Liberec in September 2025.
If you’re planning to visit Liberec in the near future, we highly recommend that you review the 14 day weather forecast for Liberec before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -4° | 7 | 6 | 19 | 97 mm | Awful | Liberec in January |
| February | 2° / -3° | 7 | 8 | 14 | 66 mm | Awful | Liberec in February |
| March | 8° / 1° | 7 | 15 | 9 | 70 mm | Awful | Liberec in March |
| April | 14° / 4° | 5 | 21 | 4 | 52 mm | Ok | Liberec in April |
| May | 17° / 7° | 9 | 22 | 0 | 115 mm | Ok | Liberec in May |
| June | 22° / 11° | 9 | 21 | 0 | 148 mm | Ok | Liberec in June |
| July | 24° / 13° | 7 | 24 | 0 | 144 mm | Good | Liberec in July |
| August | 24° / 14° | 6 | 25 | 0 | 107 mm | Perfect | Liberec in August |
| September | 19° / 10° | 5 | 25 | 0 | 77 mm | Good | Liberec in September |
| October | 13° / 6° | 5 | 25 | 1 | 74 mm | Ok | Liberec in October |
| November | 7° / 2° | 6 | 19 | 5 | 61 mm | Bad | Liberec in November |
| December | 2° / -2° | 8 | 9 | 14 | 82 mm | Awful | Liberec in December |