Montréal Weather in August

In Montréal, August brings high daytime temperatures around 30°C (86°F), with nights cooling to 17°C (63°F). Some rainfall is to be expected.

Rainfall in Montréal in August

This month experiences about 11 days of rain according to historical data, averaging 57 mm (2.2 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Montréal in August

If you're visiting Montréal in August, expect highs of 30°C (86°F) and overnight lows around 17°C (63°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 17°C (63°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable. On average, it is the warmest month of the year.

If you prefer enjoying temperate temperatures and rain-free days, May, June, July, September and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit France, check out our Montréal's climate page.

Montréal Temperature in August

Min Temperature 17°C (63°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 35%  

Precipitation 57 mm (2.2 in)  

Rainy days 11 days  

What to Wear in Montréal in August

Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket.

What To Do in Montréal in August

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

Cycling

8/10

Walking

8/10

Camping

8/10

Outdoor sports

8/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit France, check out our Montréal's climate page.

More climate data for Montréal

Temperature Rainfall

See the full Montréal climate overview or explore weather in France.