Click on a day for an hourly weather forecast
The temperatures in Prague in September are usually low and can range between 11°C and 20°C.
You can expect about 3 to 8 days of rain in Prague 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 Prague in September 2025.
If you’re planning to visit Prague in the near future, we highly recommend that you review the 14 day weather forecast for Prague before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 2° / -3° | 6 | 9 | 16 | 69 mm | Awful | Prague in January |
| February | 3° / -2° | 5 | 12 | 12 | 51 mm | Awful | Prague in February |
| March | 9° / 2° | 6 | 19 | 6 | 56 mm | Bad | Prague in March |
| April | 15° / 5° | 6 | 22 | 3 | 66 mm | Ok | Prague in April |
| May | 18° / 8° | 9 | 22 | 0 | 147 mm | Ok | Prague in May |
| June | 22° / 12° | 8 | 22 | 0 | 165 mm | Ok | Prague in June |
| July | 25° / 14° | 8 | 23 | 0 | 166 mm | Good | Prague in July |
| August | 25° / 15° | 7 | 24 | 0 | 115 mm | Good | Prague in August |
| September | 20° / 11° | 6 | 24 | 0 | 82 mm | Good | Prague in September |
| October | 14° / 6° | 5 | 25 | 1 | 77 mm | Good | Prague in October |
| November | 8° / 3° | 6 | 21 | 4 | 55 mm | Bad | Prague in November |
| December | 4° / -1° | 7 | 14 | 10 | 65 mm | Awful | Prague in December |