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Montréal weather in August (Quebec, Canada)

Looking to travel to Montréal in August? Here's what the weather might have in store during this month.

In August, Montréal generally has high temperatures and high rainfall. August is a summer month. Daytime temperatures hover around 27°C, while nights can cool down to about 15°C.

Montréal in August usually receives high rainfall, averaging around 104 mm for the month. Based on our climate data of the past 30 years, about 13 days of rain are anticipated.

The days are predominantly sunny, with an estimated total of around 245 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit. May, June, July, August and September generally stand out with the best circumstances. While January, February, March, April, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Montréal climate page with graphs.

 

Montréal, monthly averages in August

Min TemperatureMin Temperature 15°C  
Max TemperatureMax Temperature 27°C  
Water TemperatureWater Temperature 21°C  
Chance of RainChance of Rain 42%  
PrecipitationPrecipitation 104 mm  
Rainy daysRainy days 13 days  
HumidityHumidity 57%  
WindspeedWindspeed 18 km/h  
SunshineSunshine 245 hours  
Percentage SunshinePercentage Sunshine 56%  

Where to go in Canada in August

Find out more about the weather in Canada in August and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Montréal in August?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case. With a water temperature of around 21°C this is a great month to swim so bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in August.

Swimming
9/10
Cycling
7/10
Walking
7/10
Camping
6/10
Outdoor sports
7/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Montréal.

Our site offers climate and forecast data for every country in the world. Are you going to Canada? On this website you can find historical weather averages for many cities in Canada. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.