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The weather in Whitehorse in September is very cold with temperatures between -1°C and 11°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Whitehorse 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.
Please note that Whitehorse can expect a few days of snow in September.
Our weather forecast can give you a great sense of what weather to expect in Whitehorse in September 2025.
If you’re planning to visit Whitehorse in the near future, we highly recommend that you review the 14 day weather forecast for Whitehorse before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -11° / -20° | 5 | 5 | 21 | 41 mm | Awful | Whitehorse in January |
| February | -8° / -20° | 5 | 7 | 17 | 26 mm | Awful | Whitehorse in February |
| March | -4° / -17° | 9 | 4 | 22 | 29 mm | Awful | Whitehorse in March |
| April | 3° / -8° | 8 | 7 | 17 | 28 mm | Awful | Whitehorse in April |
| May | 13° / 0° | 4 | 24 | 3 | 34 mm | Bad | Whitehorse in May |
| June | 17° / 3° | 7 | 23 | 0 | 60 mm | Ok | Whitehorse in June |
| July | 19° / 4° | 7 | 24 | 0 | 67 mm | Ok | Whitehorse in July |
| August | 17° / 3° | 7 | 24 | 0 | 79 mm | Ok | Whitehorse in August |
| September | 11° / -1° | 4 | 24 | 2 | 49 mm | Bad | Whitehorse in September |
| October | 3° / -6° | 7 | 11 | 13 | 44 mm | Awful | Whitehorse in October |
| November | -7° / -16° | 6 | 3 | 23 | 40 mm | Awful | Whitehorse in November |
| December | -11° / -20° | 6 | 5 | 21 | 30 mm | Awful | Whitehorse in December |