Montreal weather in August
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Montreal August weather at a glance
In August, Montreal averages 21.1°C, with typical highs of 25.5°C and lows of 17.1°C. The historical average is 12 wet days and 69% humidity.
Montreal August temperature & humidity
Montreal August rain & wet days
Pack a compact umbrella. Keep an indoor stop available between outdoor activities.
What to wear in Montreal in August
Choose breathable summer clothes and pack sun protection. Showers are possible, so a compact umbrella is useful.
- DaytimeBreathable short sleeves, hat and sunscreen · average high 25.5°C
- Morning & eveningLong sleeves with a jacket or cardigan · average low 17.1°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
Coupang affiliate links · We earn a commission on purchases. Products are sold on the Korean Coupang store.
Montreal August sunrise & sunset times
2026 August · Local time (America/Toronto)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-08-01 | 05:38 | 20:22 | 14h 44m |
| 2026-08-15 | 05:55 | 20:02 | 14h 7m |
| 2026-08-31 | 06:15 | 19:34 | 13h 19m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
Montreal travel updates
Watch live CCTV
- Montreal traffic camerasQuebec 511 · Updated images
Check the camera timestamp at the source.
Today’s weather and forecast
Check temperature, rain and wind in Windy.
Forecast · Windy. Monthly averages are in the Temperature section.
Montreal news search
Search for recent news and check publication dates before you travel.
Montreal city map
This map shows the city area, not a specific meeting point.
Montreal travel essentials
Popular MyRealTrip products · city search, sorted by sales · Product names are in Korean.
- Travel eSIM
미국/캐나다 이심 eSIM 뉴욕 LA 티모바일 매일 500MB 무제한 1일 유심사 알림톡Book now ↗ - [파란여행-토론토출발] 퀘벡 2박3일 BEST / 샤토Book now ↗
- Travel SIM card
[미국유심] 미국 메이저 통신사 버라이즌 미국내 통화 데이터 무제한 30일 미국번호로 개통Book now ↗ - Travel tour
[소규모/2박3일]토론토 출발, 몬트리올+퀘벡 투어 with TEAM ON(캐나다/토론토)Book now ↗ - [파란여행-토론토출발] 캐나다 동부여행 4박5일 BEST 퀘벡/몬트리올/오타와 (샤토숙박)Book now ↗
Explore with Klook
Klook.comAffiliate widget · We may earn a commission on bookings.
Montreal hotel search · Trip.com
Search hotels by destination, dates and number of guests. The Trip.com widget is in Korean.
Affiliate widget · A qualifying booking may earn us a commission. Trip.com may use cookies in this search widget.
Best months to visit Montreal
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
August weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Montreal weather like in August?
In August, Montreal averages 21.1°C, with typical highs of 25.5°C and lows of 17.1°C. The historical average is 12 wet days and 69% humidity. Our weather-comfort rating for this month is good.
Does it rain a lot in Montreal in August?
There are about 12 wet days in August. A compact umbrella is still useful.
What should I wear in Montreal in August?
Choose breathable summer clothes and pack sun protection. Showers are possible, so a compact umbrella is useful.
What are the best months to visit Montreal?
Recent weather data rates August, September among the more comfortable months.
Where can I check Montreal weather in August in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Montreal in August?
On 2026-08-15, calculated sunrise is 05:55 and sunset is 20:02 in local time (America/Toronto). Times vary by date and terrain.
Montreal weather by month
More Americas destinations in August
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations