2026 Climate Averages

Weather: Montréal — August

The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.

🌟 Climate Overview

August is an excellent time to visit Montréal. Warm weather with highs of 25°C—great for outdoor activities. Rain is common, so pack an umbrella. Temperatures vary significantly between day and night—layering is recommended. As peak season, expect higher prices and more tourists.

6.5
GoTripzi Score Good

Based on weather comfort, crowds, prices, and activity options

Avg High

25°C

Avg Low

15°C

Rainy days

13days

Daylight

14.2h

Rainfall

141mm

Sunshine

10.4h/day

Humidity

75%

Humid
Sun Strength

7.2

Very High
Wind

15 km/h (gusts 33)

Is August a good time to visit Montréal?

The weather is near-perfect with ideal temperatures and minimal rain.

Now

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Feels like --
Wind --
Humidity --
UV Index --
Local time —

Air Quality

Travel Context

  • Crowds
    Very Busy
  • Travel Costs Peak Rates

Daylight

Sunrise

05:54

Sunset

20:05

14.2h daylight

Visiting Montréal in August: Pros & Cons

Pros

  • Comfortable temperatures for sightseeing
  • Abundant sunshine for beach and outdoor fun
  • Long daylight hours maximize sightseeing time
  • One of the best months to visit

Cons

  • Peak season — expect crowds and higher prices

Things to Do in August

Events & Festivals

🎵
Osheaga Music Festival
Late July–early August Music

Recommended for This Weather

🏛️ Museums & galleries
🍳 Cooking classes & food tours
🎭 Cultural tours & local experiences

Montréal Weather by Month

Month Avg High Avg Low Rain Sunshine Humidity UV Index Crowds Condition
Jan -5°C -12°C 11d (73mm) 5.2h
79% Humid
2.4 Moderate
Good
Feb -3°C -12°C 11d (72mm) 6.6h
74% Humid
3.9 Moderate
Good
Mar 4°C -5°C 12d (86mm) 7.8h
69% Humid
5.4 High
Good
Apr 12°C 2°C 12d (112mm) 8.8h
63% Moderate
6.8 High
Good
May 20°C 9°C 11d (73mm) 10.7h
60% Moderate
8.5 Very High
Good
Jun 24°C 14°C 13d (119mm) 11h
67% Humid
8.5 Very High
Excellent
Jul 27°C 17°C 14d (119mm) 11.8h
73% Humid
8.5 Very High
Excellent
Aug Current 25°C 15°C 13d (141mm) 10.4h
75% Humid
7.2 Very High
Excellent
Sep 21°C 11°C 8d (76mm) 9.4h
77% Humid
5.8 High
Excellent
Oct 15°C 6°C 11d (112mm) 7.3h
76% Humid
3.8 Moderate
Good
Nov 6°C -1°C 12d (82mm) 5.5h
76% Humid
2.3 Moderate
Good
Dec -1°C -7°C 13d (95mm) 4.5h
78% Humid
1.7 Low
Wet

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4.3

Where to Stay

See hotels, apartments & rentals around Montréal – live prices from Booking.com, Expedia, Vrbo and more

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Montréal

French-speaking city, including cobbled Old Montreal, Old Montreal and Mont Royal views, festivals, and poutine.

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What to Pack for August

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces. A waterproof jacket and shoes are non-negotiable — showers are frequent. Don't forget a wide-brimmed hat and high-SPF sunscreen — the sun is strong.

Cool Very Busy

🎒Personalized Packing List

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Your Packing List

📋Essentials
👕Clothing
👟Footwear
🎒Accessories
🧴Toiletries & Health

Planning a trip to Montréal?

🔥 Peak season — book early for best rates

Frequently Asked Questions

Is August a good time to visit Montréal?
August is typically excellent for visiting Montréal, with average highs of 25°C and around 13 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.
Does it get cold at night in Montréal in August?
Evenings in Montréal during August are mild at 15°C. A light cardigan or long sleeves for evenings is usually enough. Outdoor dining remains comfortable, making it a great time to enjoy rooftop bars and terrace restaurants.
What should I pack for Montréal in August?
With highs of 25°C and lows of 15°C in August, we recommend: Compact umbrella, Waterproof jacket/shell, Lightweight breathable clothes, Sunscreen SPF 30+. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.
Does it rain a lot in Montréal in August?
Montréal typically sees around 13 rainy days in August. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.
How many hours of daylight are there in Montréal in August?
In August, Montréal gets approximately 14.2 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.
Is August peak season in Montréal?
Yes, August is peak season in Montréal. Expect higher prices for accommodation and more crowds at popular attractions, but also the best weather conditions. Book hotels and major attractions in advance to secure availability and better rates.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: America/Toronto)

Last Updated: February 2026

More Montréal Guides

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