Click on a day for an hourly weather forecast
The temperatures in Plzen in September are quite cold with temperatures between 9°C and 20°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Plzen 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 Plzen in September 2025.
If you’re planning to visit Plzen in the near future, we highly recommend that you review the 14 day weather forecast for Plzen before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -4° | 7 | 9 | 16 | 51 mm | Awful | Plzen in January |
| February | 3° / -4° | 6 | 11 | 12 | 44 mm | Awful | Plzen in February |
| March | 8° / 0° | 5 | 19 | 6 | 40 mm | Bad | Plzen in March |
| April | 14° / 3° | 4 | 23 | 2 | 44 mm | Ok | Plzen in April |
| May | 18° / 6° | 8 | 23 | 0 | 107 mm | Ok | Plzen in May |
| June | 22° / 10° | 8 | 22 | 0 | 138 mm | Ok | Plzen in June |
| July | 24° / 12° | 8 | 23 | 0 | 135 mm | Good | Plzen in July |
| August | 24° / 12° | 6 | 25 | 0 | 96 mm | Perfect | Plzen in August |
| September | 20° / 9° | 4 | 26 | 0 | 60 mm | Good | Plzen in September |
| October | 14° / 4° | 4 | 26 | 1 | 51 mm | Good | Plzen in October |
| November | 8° / 1° | 5 | 21 | 4 | 44 mm | Bad | Plzen in November |
| December | 3° / -2° | 7 | 14 | 10 | 48 mm | Awful | Plzen in December |