Click on a day for an hourly weather forecast
The temperatures in Jyvaskyla in September are quite cold with temperatures between 8°C and 14°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Jyvaskyla 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 Jyvaskyla in September 2025.
If you’re planning to visit Jyvaskyla in the near future, we highly recommend that you review the 14 day weather forecast for Jyvaskyla before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -5° / -9° | 4 | 3 | 25 | 66 mm | Awful | Jyvaskyla in January |
| February | -4° / -9° | 4 | 2 | 23 | 57 mm | Awful | Jyvaskyla in February |
| March | 0° / -6° | 5 | 6 | 21 | 49 mm | Awful | Jyvaskyla in March |
| April | 6° / -1° | 7 | 13 | 11 | 55 mm | Awful | Jyvaskyla in April |
| May | 14° / 5° | 6 | 24 | 1 | 60 mm | Good | Jyvaskyla in May |
| June | 19° / 10° | 6 | 24 | 0 | 78 mm | Good | Jyvaskyla in June |
| July | 22° / 13° | 5 | 26 | 0 | 92 mm | Good | Jyvaskyla in July |
| August | 20° / 11° | 5 | 26 | 0 | 73 mm | Good | Jyvaskyla in August |
| September | 14° / 8° | 6 | 24 | 0 | 67 mm | Good | Jyvaskyla in September |
| October | 6° / 2° | 8 | 17 | 6 | 78 mm | Awful | Jyvaskyla in October |
| November | 2° / -1° | 8 | 10 | 12 | 77 mm | Awful | Jyvaskyla in November |
| December | -2° / -6° | 7 | 3 | 22 | 73 mm | Awful | Jyvaskyla in December |