The weather in Canada on thursday 21 August 2025
The average max temperature in Canada on 21 August is normally around 20°C. For comparison: the highest daytime temperature in the past 10 years was 27°C in 2016, while the lowest was 10°C in 2014.
There’s a fair chance of precipitation, as 6 out of the last 10 years had some, with an average of 5,1 mm on this day. There might be 0,1 cm of snow.The wind often comes from the Southeast with a maximum strength of 3 Bft.The UV index can reach 7.
Temperature on 21 August in Canada per year
This chart shows the average temperature on 21 August in Canada, measured in degrees Celsius, over the past years.
Precipitation on 21 August in Canada over the past years
This chart shows the total measured precipitation in millimetres on 21 August in Canada over the past years.
Snowfall on 21 August in Canada per year
This chart shows the total measured snowfall in centimetres on 21 August in Canada over the past years.
Average Weather in Canada by Month
Click on a month below to see detailed weather info for Canada. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.