Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Whistler observes a minor decrease in the average high-temperature with the arrival of September, falling from August's enjoyable 19°C (66.2°F) to a still refreshing 13.9°C (57°F). Whistler's average low-temperature in September is measured at a wintry 3.3°C (37.9°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In Whistler, Canada, in September, during 17.3 rainfall days, 103mm (4.06") of precipitation is typically accumulated. In Whistler, during the entire year, the rain falls for 191.9 days and collects up to 1579mm (62.17") of precipitation.Snowfall
Months with snowfall in Whistler are January through May, September through December. September is the first month it typically snows in Whistler, Canada. Throughout September, in the average 0.1 snowfall days, it receives 2mm (0.08") of snow. Throughout the year, in Whistler, there are 99.7 snowfall days, and 3792mm (149.29") of snow is accumulated.Daylight
In Whistler, Canada, the average length of the day in September is 12h and 35min.On the first day of September in Whistler, sunrise is at 6:28 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:51 pm PDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In Whistler, Canada, the average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 2 in September translates into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What is the usual temperature for Whistler in September?
What is the average humidity in September in Whistler?
How much does it rain in Whistler in September?
When does it start snowing in Whistler?
What is the average length of the day in September in Whistler?
When is the sunrise / sunset in September in Whistler?
How many hours of sunshine does Whistler have in September?
How high is the UV index in September in Whistler?
Average temperature in September
Whistler, Canada
- Average high temperature in September: 13.9°C
The warmest month (with the highest average high temperature) is August (19°C).
The month with the lowest average high temperature is December (-2.5°C).
- Average low temperature in September: 3.3°C
The month with the highest average low temperature is August (5.9°C).
The coldest month (with the lowest average low temperature) is February (-10.6°C).
Average pressure in September
Whistler, Canada
- Average pressure in September: 1015.7mbar
The months with the highest atmospheric pressure are January and December (1018.4mbar).
The month with the lowest atmospheric pressure is June (1015.3mbar).
Average wind speed in September
Whistler, Canada
- Average wind speed in September: 6.3km/h
The windiest months (with the highest average wind speed) are March and November (7.5km/h).
The calmest month (with the lowest average wind speed) is August (5.9km/h).
Average humidity in September
Whistler, Canada
- Average humidity in September: 79%
The month with the highest relative humidity is March (95%).
The month with the lowest relative humidity is July (72%).
Average rainfall in September
Whistler, Canada
- Average rainfall in September: 103mm
The wettest month (with the highest rainfall) is January (226mm).
The driest month (with the least rainfall) is July (60mm).
Average rainfall days in September
Whistler, Canada
- Average rainfall days in September: 17.3 days
The month with the highest number of rainy days is June (23.4 days).
The month with the least rainy days is December (9.5 days).
Average snowfall in September
Whistler, Canada
- Average snowfall in September: 2mm
The month with the highest snowfall is December (848mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Whistler, Canada
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is March (19.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Whistler, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Whistler, Canada
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is August (13.8 days).
The month with the least sunshine days is June (4.5 days).
Average UV index in September
Whistler, Canada
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Whistler, Canada
- Average cloud cover in September: 44
The month with the most cloud cover is March (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Whistler, Canada
- Average visibility in September: 8km
The months with the highest visibility are July, August and September (8km).
The months with the lowest visibility are January, February, March and December (5km).
Whistler, Canada
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