Click on a day for an hourly weather forecast
The temperatures in Chesterfield in September are usually low and can range between 10°C and 18°C.
You can expect about 3 to 8 days of rain in Chesterfield 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 Chesterfield in September 2025.
If you’re planning to visit Chesterfield in the near future, we highly recommend that you review the 14 day weather forecast for Chesterfield before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 6° / 1° | 7 | 18 | 6 | 64 mm | Awful | Chesterfield in January |
| February | 7° / 2° | 7 | 15 | 6 | 61 mm | Awful | Chesterfield in February |
| March | 10° / 3° | 6 | 22 | 2 | 55 mm | Bad | Chesterfield in March |
| April | 13° / 4° | 5 | 25 | 1 | 48 mm | Ok | Chesterfield in April |
| May | 15° / 7° | 6 | 25 | 0 | 71 mm | Good | Chesterfield in May |
| June | 18° / 10° | 6 | 24 | 0 | 89 mm | Good | Chesterfield in June |
| July | 20° / 12° | 5 | 26 | 0 | 87 mm | Good | Chesterfield in July |
| August | 20° / 12° | 6 | 25 | 0 | 84 mm | Good | Chesterfield in August |
| September | 18° / 10° | 5 | 25 | 0 | 50 mm | Good | Chesterfield in September |
| October | 14° / 8° | 6 | 25 | 0 | 79 mm | Good | Chesterfield in October |
| November | 9° / 5° | 7 | 22 | 0 | 73 mm | Bad | Chesterfield in November |
| December | 6° / 3° | 7 | 21 | 3 | 60 mm | Awful | Chesterfield in December |