Montreal · SummerMonth summary
Montreal weather in August
✅ Good
🌡️ Temperature min / max
63°F – 77°F
🌧 Rainy days
41% of days
☀️ Sunshine
12.5h per day on average
🌊 🌊 Season
Summer
⭐ ⭐ Weather score
7.9/10
📅 📅 Best month
July (8.3/10)
Quick decision
Should you visit Montreal in August?
✅ Good
✅ Yes if: you want to explore cultural sites and local food.
❌ No if: you need guaranteed sunshine for photos or outdoor activities.
Our take: August is a good time to visit Montreal. July remains slightly better (+0.4 pts).
By trip type
Montreal in August by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ✅ Good
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in August
Summer in Montreal brings pleasant temperatures (25°F) and long sunny days (12.5h of sunshine). Expect rain on 41% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if July (8.3/10) remains theoretically better.
Browse by month
All months for Montreal
Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ❄️ January | 10°F | 27°F | 39% | 0.1in | 5.7h | 3.2/10 |
| ❄️ February | 10°F | 28°F | 41% | 0.1in | 7.0h | 3.6/10 |
| 🌨️ March | 23°F | 39°F | 40% | 0.1in | 8.9h | 4.0/10 |
| 🌦️ April | 34°F | 50°F | 42% | 0.2in | 9.8h | 4.6/10 |
| 🌤️ May | 46°F | 66°F | 35% | 0.1in | 11.9h | 7.3/10 |
| 🌤️ June | 57°F | 75°F | 43% | 0.1in | 12.6h | 7.8/10 |
| 🌤️ July | 64°F | 81°F | 39% | 0.1in | 13.3h | 8.3/10 |
| 🌤️ August | 63°F | 77°F | 41% | 0.1in | 12.5h | 7.9/10 |
| 🌤️ September | 55°F | 72°F | 27% | 0.1in | 11.0h | 7.8/10 |
| ⛅ October | 45°F | 57°F | 38% | 0.2in | 8.2h | 5.2/10 |
| 🌦️ November | 30°F | 41°F | 44% | 0.1in | 5.8h | 2.8/10 |
| 🌨️ December | 18°F | 32°F | 42% | 0.1in | 4.9h | 2.6/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In August, Montreal averages 77°F, 41% rainy days and 12.5h of sunshine per day. Overall weather score: 7.9/10.
See methodology →
Comparison
August vs July (best month)
The best month is July (score 8.3/10). Difference:
- 🌡️ Max temperature : +2°F
- 🌧 Rainy days : -2%
- ☀️ Sunshine : +0.8h/day
FAQ
FAQ — Montreal in August
Is August a good time to visit Montreal?
August is an excellent time to visit Montreal (score 7.9/10). With 77°F, 12.5h of sunshine and 41% rain, conditions are very favourable.
What to do in Montreal in August?
With 77°F max and 12.5h of sunshine, focus on cultural sites, museums and local gastronomy.
Accommodation
Find a place to stay in Montreal
Find places to stay in Montreal in August
Search on Hotels.com
Activities & tours
Activities and tours in Montreal
Guided tours, skip-the-line tickets and local experiences.
Browse activities on GetYourGuide
Flights
Find a flight to Montreal
Compare flights from all airlines.
Search flights
←
Explore also
Similar destinations in August
Sapporo🌍 Top destinations
Other top destinations in August
San Miguel de Allende
Salalah
Cape Verde
Djerba
Turks and CaicosWeather rankings
Compare destinations by weather
Best in EuropeGuides & comparisons