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Chilliwack (BC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Chilliwack.
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Climate overview of Chilliwack
Chilliwack, British Columbia, Canada, experiences significant temperature variation throughout the year. Summers bring daytime highs of 22°C (72°F) in August, while winters cool to 3°C (37°F) in December.
The city receives considerable rain/snowfall, with around 2435 mm (96 in) annually. November is the wettest month. It has a distinct rainy season from October to April, with warm summers and cold winters. The most sunshine falls in July, with an average of 9.4 hours of daily sunshine.
Chilliwack Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Chilliwack - and find the best time to visit.
Monthly Temperature in Chilliwack
Depending on the time of the year, temperatures range from comfortable to chilly in Chilliwack. Typically, average maximum daytime temperatures range from a comfortable 22°C (72°F) in August to a chilly 3°C (37°F) in the coolest month, December.
Nights vary from 11°C (52°F) in August to around -2°C (28°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Chilliwack
Chilliwack has a relatively rain/snowy climate with high precipitation levels, averaging 2435 mm (96 in) of rain/snowfall annually. The climate in Chilliwack shows significant variation throughout the year. Expect heavy rainfall in November, the wettest month, with an average of 353 mm (14 in) of precipitation over 20 rainy days.
In contrast, the driest month July offers drier and sunnier days, with around 69 mm (2.7 in) of rainfall over 9 rainy days. For more details, please visit our Chilliwack Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Chilliwack
For those who appreciate different seasons, Chilliwack serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.4 hours of sunshine daily, and embrace the darker days in November, offering only 2.0 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Bellingham, the United States of America (59 KM, 37 Miles).
Daily hours of sunshine
Data from: Bellingham, the United States of America (59 KM, 37 Miles).
Best Time to Visit Chilliwack
Conditions in Chilliwack are generally most comfortable in July and August. They are typically least comfortable in January, February, March, April, October, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very wet
Feb
very wet
Mar
very wet
Apr
wet
May
mixed
Jun
good
Jul
excellent
Aug
excellent
Sep
good
Oct
very wet
Nov
very wet
Dec
very wet
- Best overall: July and August
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Seasonal pattern: A distinct rainy season from October to April, with warm summers and cold winters
- Coldest conditions: December, with freezing nights around -2°C (28°F).
Frequently asked questions about the climate in Chilliwack
What is the best time to visit Chilliwack?
July and August typically offer the most optimal weather in Chilliwack. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions. Chilliwack has a distinct rainy season from October to April, with warm summers and cold winters.
What temperatures can I expect in Chilliwack?
Daytime highs range from 3°C (37°F) in December to 22°C (72°F) in August. Nighttime lows range from -2°C (28°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Chilliwack get?
Annual rainfall is around 2435 mm (96 in). November is the wettest month with 353 mm (14 in), while July is the driest with 69 mm (2.7 in).
How sunny is Chilliwack?
Chilliwack receives around 1,887 hours of sunshine per year. July is the sunniest month with 281 hours, while November is the cloudiest with just 61 hours.
Chilliwack 3-Day Forecast
Chilliwack on the map
Chilliwack is highlighted - select any city to see its climate.
Popular in September
Where to go in September - average daytime high across popular destinations.
Toronto
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22°C (72°F) Ottawa22°C (72°F) Quebec City
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