Click on a day for an hourly weather forecast
The temperatures in Repentigny in September are comfortable with low of 11°C and and high up to 21°C.
You can expect about 3 to 8 days of rain in Repentigny 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 Repentigny in September 2025.
If you’re planning to visit Repentigny in the near future, we highly recommend that you review the 14 day weather forecast for Repentigny before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -7° / -14° | 5 | 4 | 21 | 117 mm | Awful | Repentigny in January |
| February | -5° / -13° | 7 | 3 | 20 | 125 mm | Awful | Repentigny in February |
| March | 1° / -6° | 9 | 8 | 15 | 114 mm | Awful | Repentigny in March |
| April | 10° / 1° | 10 | 15 | 6 | 155 mm | Awful | Repentigny in April |
| May | 18° / 8° | 9 | 22 | 1 | 151 mm | Ok | Repentigny in May |
| June | 22° / 12° | 8 | 22 | 0 | 161 mm | Ok | Repentigny in June |
| July | 25° / 15° | 7 | 24 | 0 | 132 mm | Good | Repentigny in July |
| August | 25° / 15° | 6 | 25 | 0 | 133 mm | Perfect | Repentigny in August |
| September | 21° / 11° | 5 | 25 | 0 | 110 mm | Good | Repentigny in September |
| October | 13° / 6° | 9 | 22 | 1 | 148 mm | Bad | Repentigny in October |
| November | 5° / -1° | 8 | 15 | 7 | 100 mm | Awful | Repentigny in November |
| December | -3° / -8° | 8 | 6 | 17 | 136 mm | Awful | Repentigny in December |