CanadaThe weather in September in Chilliwack
It's pleasantly warm in September in Chilliwack with an average temperature of 22°C. Temperatures this month range from a low of 17°C to a high of 26°C. At night, you can expect temperatures between 11°C and 15°C.
Looking for sun? September isn’t a good month to be in Chilliwack. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Chilliwack, Canada. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2017, Chilliwack reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 12°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 4°C to a highest value of 24°C.
Rainfall amount
In September, there is an average of 190 mm of precipitation, spread over 19 days. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in September for Chilliwack
Click on any day in September to get detailed info about the usual weather on that day in Chilliwack. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Chilliwack | New York | |
|---|---|---|
| Average temperature | 22°C | 27°C |
| Max. temperature | 26°C | 31°C |
| Min. temperature | 11°C | -5°C |
| Total precipitation | 190 mm | 57 mm |
| Rainy days | 19 days | 9 days |
Start of September
The month of September starts in Chilliwack with warm temps, averaging around 25°C during the day and nights around 14°C.
Mid September
By mid-September, daytime temps drop to around 22°C, with nights around 13°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Chilliwack is around 20°C, while nighttime temps are about 12°C. There’s a significant chance of many days with precipitation.
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UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Chilliwack for all months and discover the best travel time
Curious about the weather in other parts of Canada? Check out the climate and weather for spots like Vancouver, Toronto, Niagara Falls, or explore other destinations in Canada.
Temperature charts
These charts show the average temperatures in September in Chilliwack, Canada. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Chilliwack
Temperature in September in Chilliwack over the years
Precipitation charts
These charts show the average amount of precipitation in September in Chilliwack, Canada. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Chilliwack
Total precipitation in September in Chilliwack over the years
Daily UV index in September in Chilliwack
This chart shows the average daily UV index in September in Chilliwack, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Chilliwack
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Average weather in Chilliwack by month
Click on a month below to see detailed weather info for Chilliwack. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.