Chilliwack (BC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Chilliwack.
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 January.
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. 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, January.
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
Daily hours of sunshine
Best Time to Visit Chilliwack
Rainfall during this time ranges from 69 mm (2.7 in) in July to 129 mm (5.1 in) in September. This means you can expect a mix of sunny days and occasional showers.
The rainy season falls during January, February, March, April, October, November and December, bringing heavy precipitation. Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.
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.
What temperatures can I expect in Chilliwack?
Daytime highs range from 3°C (37°F) in January 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 (BC) 3-Day Forecast
Chilliwack on the map
Chilliwack is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Niagara Falls
27°C (81°F) Montréal28°C (82°F) Ottawa27°C (81°F) Quebec City
26°C (79°F) Toronto26°C (79°F) Calgary24°C (75°F) Vancouver22°C (72°F) Whistler
19°C (66°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most beautiful lakes in Canada
Explore Canada's stunning lakes: Lake Louise, Lake Superior, Maligne Lake, Emerald Lake, and Lake Okanagan, each offering unique beauty and activities.
Canoeing the south Nahannii
The South Nahanni in the northwest of Canada is one of the most impressive wilderness rivers in the world. Canoeing the south Nahanni is something you must add to your bucket list.
See Polar Bears in Churchill Canada
Thousands of bears gather at the small town of Churchill. In the evening the northern lights give a light show against the dark evening sky. An unforgettable experience.
Banff National Park
Snowy mountains, clear blue lakes and green forests make Banff National Park a wonderful bucket list destination. The pristine wilderness is a mecca for walkers.