Click on a day for an hourly weather forecast
The temperatures in Deventer in September are usually low and can range between 11°C and 19°C.
You can expect about 3 to 8 days of rain in Deventer 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 Deventer in September 2025.
If you’re planning to visit Deventer in the near future, we highly recommend that you review the 14 day weather forecast for Deventer before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / 1° | 10 | 15 | 6 | 95 mm | Awful | Deventer in January |
| February | 6° / 1° | 9 | 14 | 6 | 84 mm | Awful | Deventer in February |
| March | 10° / 3° | 7 | 23 | 1 | 73 mm | Bad | Deventer in March |
| April | 14° / 6° | 4 | 25 | 1 | 56 mm | Good | Deventer in April |
| May | 17° / 8° | 7 | 24 | 0 | 90 mm | Ok | Deventer in May |
| June | 20° / 12° | 6 | 24 | 0 | 111 mm | Good | Deventer in June |
| July | 22° / 14° | 8 | 23 | 0 | 135 mm | Ok | Deventer in July |
| August | 22° / 14° | 6 | 25 | 0 | 118 mm | Good | Deventer in August |
| September | 19° / 11° | 5 | 25 | 0 | 78 mm | Good | Deventer in September |
| October | 14° / 8° | 7 | 24 | 0 | 88 mm | Ok | Deventer in October |
| November | 9° / 5° | 8 | 22 | 1 | 88 mm | Bad | Deventer in November |
| December | 6° / 2° | 10 | 16 | 5 | 105 mm | Awful | Deventer in December |