Whistler weather in September 2025

Expect 13°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Whistler in September. Check more long-term weather averages for Whistler in September before you book your next holiday to British Columbia in 2025/2026.

  • 13°C maximum daytime temperature in September in Whistler13
    13°C max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in September in Whistler11
    11 days with some rainfall
  • 4°C minimum night-time temperature in September in Whistler4
    4°C min night temperature
  • 13 hours of daylight per day in September in Whistler13
    13 hours of daylight per day
  • No heat & humidity in September in Whistler0
    No heat & humidity
  • 90 mm monthly rainfall in September in Whistler90
    90 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Whistler5
    5 (Moderate) UV index

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The September weather guide for British Columbia (Whistler) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How warm is it in Whistler in September?

Daytime temperatures usually reach 13°C in Whistler in September, falling to 4°C at night.

How sunny is it in Whistler in September?

There are normally 6 hours of bright sunshine each day in Whistler in September - that's 45% of daylight hours.

Does it rain in Whistler in September?

There are usually 11 days with some rain in Whistler in September and the average monthly rainfall is 90mm.

Whistler September sunrise & sunset times

Browse the sunrise and sunset times for Whistler in September 2025. Select a month to view Whistler sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:27 18:55
Monday, 15th September 2025 05:48 18:24
Tuesday, 30th September 2025 06:11 17:51

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