Click on a day for an hourly weather forecast
The temperatures in Denain 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 Denain 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 Denain in September 2026.
If you’re planning to visit Denain in the near future, we highly recommend that you review the 14 day weather forecast for Denain before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 6° / 1° | 10 | 16 | 5 | 106 mm | Awful | Denain in January |
| February | 7° / 1° | 9 | 15 | 4 | 90 mm | Awful | Denain in February |
| March | 11° / 3° | 8 | 21 | 2 | 84 mm | Awful | Denain in March |
| April | 15° / 5° | 5 | 25 | 1 | 62 mm | Good | Denain in April |
| May | 18° / 8° | 7 | 24 | 0 | 100 mm | Ok | Denain in May |
| June | 21° / 11° | 6 | 24 | 0 | 111 mm | Good | Denain in June |
| July | 23° / 13° | 6 | 25 | 0 | 99 mm | Perfect | Denain in July |
| August | 23° / 14° | 6 | 25 | 0 | 105 mm | Perfect | Denain in August |
| September | 20° / 11° | 5 | 25 | 0 | 66 mm | Good | Denain in September |
| October | 15° / 8° | 7 | 24 | 0 | 82 mm | Ok | Denain in October |
| November | 10° / 5° | 8 | 21 | 1 | 104 mm | Bad | Denain in November |
| December | 7° / 2° | 10 | 18 | 3 | 122 mm | Awful | Denain in December |