August weather forecastChâteauguay, Canada
August
Weather in August
August, the last month of the summer in Châteauguay, is also a moderately hot month, with temperature in the range of an average low of 15.1°C (59.2°F) and an average high of 24.4°C (75.9°F).Temperature
Châteauguay, Canada, marks the onset of August with an average high-temperature of a still warm 24.4°C (75.9°F), a subtle shift from July's 25.3°C (77.5°F). Châteauguay records a consistent low-temperature of 15.1°C (59.2°F) during August nights.Humidity
The average relative humidity in August in Châteauguay is 79%.Rainfall
In Châteauguay, in August, it is raining for 16.5 days, with typically 74mm (2.91") of accumulated precipitation. Throughout the year, there are 153.6 rainfall days, and 759mm (29.88") of precipitation is accumulated.Snowfall
In Châteauguay, snow does not fall in June through September.Daylight
The average length of the day in August is 14h and 3min.On the first day of the month, sunrise is at 5:40 am and sunset at 8:22 pm. On the last day of August, sunrise is at 6:16 am and sunset at 7:33 pm EDT.
Sunshine
The month with the most sunshine in Châteauguay is August, with an average of 10.3h of sunshine.UV index
The average daily maximum UV index in August in Châteauguay, Canada, is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: During August, 5 as the daily maximum UV index converts into the following advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Châteauguay, Canada
- Average high temperature in August: 24.4°C
The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-5.6°C).
- Average low temperature in August: 15.1°C
The month with the highest average low temperature is July (15.9°C).
The coldest month (with the lowest average low temperature) is January (-12.7°C).
Average pressure in August
Châteauguay, Canada
- Average pressure in August: 1014.2mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).
Average wind speed in August
Châteauguay, Canada
- Average wind speed in August: 10.9km/h
The windiest months (with the highest average wind speed) are February and April (14.5km/h).
The calmest month (with the lowest average wind speed) is July (10.8km/h).
Average humidity in August
Châteauguay, Canada
- Average humidity in August: 79%
The months with the highest relative humidity are January and February (90%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in August
Châteauguay, Canada
- Average rainfall in August: 74mm
The wettest month (with the highest rainfall) is May (77mm).
The driest months (with the least rainfall) are February and September (51mm).
Average rainfall days in August
Châteauguay, Canada
- Average rainfall days in August: 16.5 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in August
Châteauguay, Canada
- Average snowfall in August: 0mm
The month with the highest snowfall is February (219mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in August
Châteauguay, Canada
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Châteauguay, Canada
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 10h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in August
Châteauguay, Canada
- Average sunshine days in August: 10.8 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in August
Châteauguay, Canada
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in August
Châteauguay, Canada
- Average cloud cover in August: 33
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in August
Châteauguay, Canada
- Average visibility in August: 9km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The month with the lowest visibility is January (7km).





