Monthly climate guide
Whitehorse weather in September
September in Whitehorse is typically cool, with average daytime highs around 8°C (47°F) and night-time lows near 0°C (32°F). The month usually brings about 59 mm of rain (some rain) and is often cloudy. Daytime highs are 5°C cooler than August and 8°C warmer than October.
What stands out in September
- It cools down fast from here: October is about 8°C cooler.
- Compared with Charlottetown, Whitehorse runs roughly 11°C cooler this month.
- In Whitehorse, September is early autumn.
Avg high
8°C
47°F
Avg low
0°C
32°F
Rainfall
59 mm
some rain
Humidity
85%
relative
Sky
72%
cloud · often cloudy
Whitehorse weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | -13°C / 9°F | -19°C / -3°F | 43 mm | 97% | 66% |
| February | -11°C / 13°F | -20°C / -3°F | 29 mm | 95% | 59% |
| March | -7°C / 19°F | -18°C / 0°F | 28 mm | 95% | 57% |
| April | 0°C / 31°F | -9°C / 15°F | 31 mm | 90% | 69% |
| May | 8°C / 47°F | -1°C / 31°F | 44 mm | 79% | 71% |
| June | 13°C / 55°F | 3°C / 38°F | 73 mm | 77% | 79% |
| July | 15°C / 59°F | 6°C / 42°F | 84 mm | 78% | 77% |
| August | 13°C / 56°F | 4°C / 40°F | 77 mm | 81% | 76% |
| September | 8°C / 47°F | 0°C / 32°F | 59 mm | 85% | 72% |
| October | 0°C / 32°F | -7°C / 20°F | 56 mm | 93% | 77% |
| November | -11°C / 13°F | -17°C / 1°F | 46 mm | 97% | 74% |
| December | -12°C / 10°F | -18°C / -1°F | 44 mm | 97% | 69% |
What to pack for September
- A proper insulated winter coat
- A hat, scarf and gloves
- A small travel umbrella, just in case
Is September a good time to visit Whitehorse?
Compare the months in the chart above to find your ideal window.
Best time to visit Whitehorse →Other Canada cities in September
Cite or embed this data
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Whitehorse weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/canada/whitehorse/september
<a href="https://weathercompare.eu/weather/canada/whitehorse/september">Whitehorse weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/canada/whitehorse" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Whitehorse weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/canada/whitehorse/september">Whitehorse weather in September</a> – WeatherCompare</p>
Whitehorse in September: quick answers
Is September a good time to visit Whitehorse?
September is cool in Whitehorse, with highs around 8°C. Better for museums and city walks than the beach, and usually quieter.
How warm is Whitehorse in September?
Average highs are about 8°C (47°F) and average lows about 0°C (32°F), based on 10 years of daily data.
Does it rain a lot in Whitehorse in September?
Whitehorse typically gets around 59 mm of rain in September — some rain.
Figures are long-term averages for the area around Whitehorse (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.