August weather forecastChilliwack, Canada
August
Weather in August
August carries forward the summer legacy of Chilliwack with a slight spike in temperatures. Frequently clear skies and long daylight hours set the perfect backdrop for sightseeing and outdoor activities. The month experiences the lowest precipitation levels in the year, with rainfall accounting for merely 31mm (1.22") over 10.2 days. The city baths in the unfaltering sunlight, with warm winds gracing the cityscape throughout. August radiates in the glow of summer, drawing visitors in with its ideal weather and inviting aura.Temperature
Chilliwack experiences its highest average temperatures in August, reaching a peak of 21.9°C (71.4°F) and a minimum of 8.7°C (47.7°F).Humidity
In Chilliwack, the average relative humidity in August is 75%.Rainfall
August is the month with the least rainfall. Rain falls for 10.2 days and accumulates 31mm (1.22") of precipitation.Snowfall
May through October are months without snowfall.Daylight
In August, the average length of the day in Chilliwack is 14h and 20min.On the first day of August in Chilliwack, sunrise is at 5:41 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:51 pm PDT.
Sunshine
August has the most sunshine of the year in Chilliwack, with an average of 10h of sunshine.UV index
In August, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 3 during August translates into the following directions:
Undertake protective steps - Preventing sun damage is advised. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Chilliwack, Canada
- Average high temperature in August: 21.9°C
The warmest month (with the highest average high temperature) is August (21.9°C).
The month with the lowest average high temperature is December (1.3°C).
- Average low temperature in August: 8.7°C
The month with the highest average low temperature is August (8.7°C).
The coldest month (with the lowest average low temperature) is December (-3.4°C).
Average pressure in August
Chilliwack, Canada
- Average pressure in August: 1015.7mbar
The month with the highest atmospheric pressure is January (1019.3mbar).
The month with the lowest atmospheric pressure is June (1015.6mbar).
Average wind speed in August
Chilliwack, Canada
- Average wind speed in August: 5km/h
The windiest months (with the highest average wind speed) are January and February (6.9km/h).
The calmest month (with the lowest average wind speed) is August (5km/h).
Average humidity in August
Chilliwack, Canada
- Average humidity in August: 75%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is July (74%).
Average rainfall in August
Chilliwack, Canada
- Average rainfall in August: 31mm
The wettest month (with the highest rainfall) is January (173mm).
The driest month (with the least rainfall) is August (31mm).
Average rainfall days in August
Chilliwack, Canada
- Average rainfall days in August: 10.2 days
The month with the highest number of rainy days is March (21.2 days).
The month with the least rainy days is August (10.2 days).
Average snowfall in August
Chilliwack, Canada
- Average snowfall in August: 0mm
The month with the highest snowfall is February (103mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in August
Chilliwack, Canada
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Chilliwack, Canada
- Average daylight in August: 14h and 18min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in August
Chilliwack, Canada
- Average sunshine days in August: 18.1 days
The month with the most sunshine days is August (18.1 days).
The months with the least sunshine days are March and April (8 days).
Average UV index in August
Chilliwack, Canada
- Average UV index in August: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in August
Chilliwack, Canada
- Average cloud cover in August: 35
The month with the most cloud cover is March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in August
Chilliwack, Canada
- Average visibility in August: 8km
The months with the highest visibility are May, July and August (8km).
The months with the lowest visibility are January, February, March, November and December (6km).








