Whistler weather in September 2025
September
Whistler weather in September 2025
September
Day
18 °C
Night
6 °C
Sea
14 °C
Precipitation
56 mm
in month
Rainy days
10 days
in month
Daylight
12 hours
average
Sunshine
6 hours
average
Humidity
76 %
Day
18 °C
Night
6 °C
Sea
14 °C
Precipitation
56 mm
in month
Rainy days
10 days
in month
Daylight
12 hours
average
Sunshine
6 hours
average
Humidity
76 %
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Weather overview for Whistler
Weather overview
In September in Whistler, the average air temperature ranges from 18 °C (64 °F) during the day to 6 °C (43 °F) at night. There are 10 days of rain on average, where the rainfall is 56 mm (2.21 in).
Is September a good month to visit Whistler?
There are good conditions for visiting in September in Whistler. There are only 10 days of rain in the whole month, so you can leave your umbrella at home. A relatively low temperature of 18 °C (64 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of 6 °C (43 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.
What is the temperature in Whistler during the day in September?
The average daily temperature in Whistler in September is 18 °C (64 °F). Nice temperature for walking around the city or on the beach, but you will probably get cold soon when wearing a swimsuit. When walking around all day, people used to cold conditions, pull out their shorts and get rid of their sweaters. On some days, when spending time in the direct sun, sunscreen can be useful, especially for people with more sensitive skin.
What is the sea temperature in Whistler in September?
In September in Whistler expect the sea to be warm at 14 °C (58 °F). This is a sea temperature for resilient people only, most people won't enjoy swimming in such cold water or will have to use a wetsuit for water activities.
How many days of precipitation on average can I expect in Whistler in September?
There are 10 days, which are rainy in September in Whistler, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.2 days of the week, or in general - 32 % days.
What is the rainfall intensity in Whistler in September?
In Whistler in September, there is 56 mm (2.21 in) rainfall, which means on average 2 mm (0.07 in) rainfall per day.
What is the night temperature in September in Whistler?
The average night temperature in September in Whistler is 6 °C (43 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.
Is Whistler rainier in September than in October?
No, September in Whistler is not a rainier month than October.
How many hours of sun to expect in September in Whistler?
In September in Whistler, you can expect around 6 hours of sunshine.
Is September part of the wet season in Whistler?
No, there is no wet season in September in Whistler - you can expect 10 days of rain during the month.
Is September part of the dry season in Whistler?
No, September is not a dry month in Whistler, expect rain approximately 10 days in a month.
What is the temperature trend in Whistler in September?
During September in Whistler, the day temperatures are decreasing - from 20 °C (67 °F) at the beginning of the month to 14 °C (57 °F) at the end of the month.
How long is the day (from dawn till dusk) in Whistler in September?
The length of daylight in September in Whistler is 12 hours.
Is the sea in Whistler warmer in September than in August?
No, the sea is not warmer in Whistler in September than in August.
Is the weather in Whistler warmer in September than in August?
No, September is not warmer in Whistler than August.
How does the sea temperature evolve during the month in Whistler in September?
Whistler has a decreasing trend of the sea temperature during September - from 15 °C (59 °F) in the first days of the month to 13 °C (55 °F) in the last days of the month.
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