Click on a day for an hourly weather forecast
The temperatures in Kingston 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 Kingston 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 Kingston in September 2025.
If you’re planning to visit Kingston in the near future, we highly recommend that you review the 14 day weather forecast for Kingston before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -4° / -10° | 5 | 6 | 21 | 81 mm | Awful | Kingston in January |
| February | -3° / -9° | 5 | 5 | 19 | 80 mm | Awful | Kingston in February |
| March | 3° / -4° | 7 | 11 | 13 | 69 mm | Awful | Kingston in March |
| April | 10° / 2° | 8 | 18 | 4 | 97 mm | Awful | Kingston in April |
| May | 17° / 8° | 7 | 24 | 1 | 93 mm | Ok | Kingston in May |
| June | 21° / 12° | 6 | 24 | 0 | 97 mm | Good | Kingston in June |
| July | 25° / 16° | 5 | 26 | 0 | 83 mm | Perfect | Kingston in July |
| August | 25° / 16° | 4 | 27 | 0 | 93 mm | Perfect | Kingston in August |
| September | 21° / 12° | 4 | 26 | 0 | 67 mm | Good | Kingston in September |
| October | 14° / 7° | 8 | 23 | 1 | 114 mm | Ok | Kingston in October |
| November | 7° / 1° | 6 | 16 | 8 | 78 mm | Bad | Kingston in November |
| December | 1° / -4° | 6 | 10 | 15 | 91 mm | Awful | Kingston in December |