Click on a day for an hourly weather forecast
The temperatures in Kitchener in September are comfortable with low of 12°C and and high up to 21°C.
You can expect about 3 to 8 days of rain in Kitchener 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 Kitchener in September 2025.
If you’re planning to visit Kitchener in the near future, we highly recommend that you review the 14 day weather forecast for Kitchener before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -4° / -9° | 6 | 5 | 20 | 93 mm | Awful | Kitchener in January |
| February | -3° / -9° | 5 | 5 | 18 | 83 mm | Awful | Kitchener in February |
| March | 3° / -4° | 8 | 11 | 12 | 95 mm | Awful | Kitchener in March |
| April | 10° / 2° | 9 | 16 | 6 | 124 mm | Awful | Kitchener in April |
| May | 18° / 8° | 8 | 23 | 0 | 118 mm | Ok | Kitchener in May |
| June | 22° / 13° | 7 | 23 | 0 | 126 mm | Ok | Kitchener in June |
| July | 25° / 16° | 8 | 23 | 0 | 144 mm | Good | Kitchener in July |
| August | 25° / 15° | 6 | 25 | 0 | 118 mm | Perfect | Kitchener in August |
| September | 21° / 12° | 5 | 25 | 0 | 89 mm | Good | Kitchener in September |
| October | 14° / 6° | 7 | 22 | 1 | 120 mm | Ok | Kitchener in October |
| November | 6° / 0° | 7 | 14 | 9 | 81 mm | Awful | Kitchener in November |
| December | 0° / -4° | 6 | 7 | 17 | 85 mm | Awful | Kitchener in December |