Click on a day for an hourly weather forecast
The temperatures in Amersfoort in September are usually low and can range between 12°C and 19°C.
You can expect about 3 to 8 days of rain in Amersfoort 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 Amersfoort in September 2025.
If you’re planning to visit Amersfoort in the near future, we highly recommend that you review the 14 day weather forecast for Amersfoort before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / 2° | 7 | 20 | 5 | 52 mm | Awful | Amersfoort in January |
| February | 7° / 2° | 6 | 18 | 4 | 46 mm | Bad | Amersfoort in February |
| March | 10° / 3° | 5 | 25 | 1 | 42 mm | Ok | Amersfoort in March |
| April | 15° / 6° | 3 | 27 | 1 | 32 mm | Good | Amersfoort in April |
| May | 17° / 9° | 5 | 26 | 0 | 53 mm | Good | Amersfoort in May |
| June | 21° / 12° | 4 | 26 | 0 | 66 mm | Good | Amersfoort in June |
| July | 23° / 14° | 4 | 27 | 0 | 72 mm | Perfect | Amersfoort in July |
| August | 22° / 14° | 4 | 27 | 0 | 68 mm | Good | Amersfoort in August |
| September | 19° / 12° | 3 | 27 | 0 | 45 mm | Good | Amersfoort in September |
| October | 15° / 9° | 4 | 27 | 0 | 48 mm | Good | Amersfoort in October |
| November | 10° / 6° | 5 | 24 | 1 | 48 mm | Ok | Amersfoort in November |
| December | 6° / 3° | 7 | 20 | 3 | 54 mm | Awful | Amersfoort in December |