Click on a day for an hourly weather forecast
The temperatures in Ouest in September are comfortable with low of 19°C and and high up to 25°C.
With more than 22 rainy days, Ouest is an incredibly wet during September. Be sure to pack your umbrella and bring along your rubber boots to stay dry. It’s going to be raining cats and dogs this month!
Our weather forecast can give you a great sense of what weather to expect in Ouest in September 2025.
If you’re planning to visit Ouest in the near future, we highly recommend that you review the 14 day weather forecast for Ouest before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 31° / 19° | 2 | 29 | 0 | 35 mm | Good | Ouest in January |
| February | 32° / 20° | 6 | 23 | 0 | 72 mm | Good | Ouest in February |
| March | 31° / 20° | 18 | 13 | 0 | 222 mm | Ok | Ouest in March |
| April | 30° / 20° | 19 | 11 | 0 | 295 mm | Ok | Ouest in April |
| May | 28° / 20° | 22 | 9 | 0 | 395 mm | Good | Ouest in May |
| June | 27° / 19° | 21 | 9 | 0 | 445 mm | Good | Ouest in June |
| July | 25° / 19° | 24 | 7 | 0 | 568 mm | Good | Ouest in July |
| August | 25° / 19° | 24 | 7 | 0 | 537 mm | Good | Ouest in August |
| September | 25° / 19° | 24 | 6 | 0 | 630 mm | Good | Ouest in September |
| October | 26° / 19° | 25 | 6 | 0 | 558 mm | Good | Ouest in October |
| November | 29° / 19° | 13 | 17 | 0 | 243 mm | Ok | Ouest in November |
| December | 31° / 19° | 2 | 29 | 0 | 35 mm | Good | Ouest in December |