Montreal Weather
Montreal weather today, the 14-day forecast, and average temperature, rain and what to wear for every month — compared against Hong Kong. Best months to visit: May, Jun, Jul, Aug and Sep.
Montreal current weather
Montreal now (local time 08:00)
4°C
Overcast
- Feels like
- 1°
- Humidity
- 98%
- Wind
- 5 km/h
Next 7 days · what to wear
3° – 16°C
Rain likely on 4 of 7 days
👕 A sweater plus a coat or windbreaker; it's wet, so pack a compact umbrella.
Montreal 14-day forecast
Today
10/4
🌦️
14°
3°
💧23%
Mon
10/5
🌧️
12°
3°
💧53%
Tue
10/6
☁️
12°
4°
💧1%
Wed
10/7
🌦️
14°
5°
💧42%
Thu
10/8
🌦️
16°
10°
💧40%
Fri
10/9
🌦️
12°
6°
💧20%
Sat
10/10
🌦️
10°
5°
💧20%
Sun
10/11
☁️
13°
3°
💧5%
Mon
10/12
☁️
17°
11°
💧25%
Tue
10/13
🌦️
19°
9°
💧32%
Wed
10/14
🌦️
13°
9°
💧32%
Thu
10/15
🌦️
8°
5°
💧18%
Fri
10/16
🌦️
10°
4°
💧19%
Sat
10/17
🌦️
7°
5°
💧29%
Best time to visit Montreal
On temperature and rainfall, the most comfortable months in Montreal are May, Jun, Jul, Aug and Sep. The hottest month is July (average high 25°C) and the coldest is January (average low -18°C).
Montreal climate by month
| Month | Avg high | Avg low | Rain | Humidity | vs Hong Kong |
|---|---|---|---|---|---|
| Jan | -7°C | -18°C | 72 mm | 92% | -29°C |
| Feb | -5°C | -16°C | 68 mm | 90% | -28°C |
| Mar | 0°C | -9°C | 76 mm | 87% | -24°C |
| Apr | 9°C | -1°C | 95 mm | 81% | -19°C |
| MayBest | 17°C | 7°C | 93 mm | 79% | -15°C |
| JunBest | 22°C | 13°C | 109 mm | 79% | -11°C |
| JulBest | 25°C | 16°C | 95 mm | 76% | -9°C |
| AugBest | 25°C | 15°C | 98 mm | 74% | -9°C |
| SepBest | 21°C | 10°C | 88 mm | 75% | -13°C |
| Oct | 12°C | 3°C | 114 mm | 81% | -18°C |
| Nov | 4°C | -4°C | 81 mm | 86% | -22°C |
| Dec | -4°C | -12°C | 98 mm | 91% | -26°C |
Data: NASA POWER 2001–2020 climatology (MERRA-2, elevation-corrected); Hong Kong comparison uses HKO 1991–2020 normals.
Montreal weather month by month: what to wear
Montreal in OctoberThis month
October in Montreal is chilly: average highs of 12°C and lows of 3°C, around 114 mm of rain (some rain) and 81% humidity — about 18°C colder than Hong Kong.
👕 A sweater plus a coat or windbreaker; big day–night swing, so dress in layers.
Montreal in November
November in Montreal is cold: average highs of 4°C and lows of -4°C, around 81 mm of rain (some rain) and 86% humidity — about 22°C colder than Hong Kong.
👕 A down jacket, thermal base layers, scarf and gloves.
Montreal in December
December in Montreal is freezing: average highs of -4°C and lows of -12°C, around 98 mm of rain (some rain) and 91% humidity — about 26°C colder than Hong Kong.
👕 A heavy down jacket, thermals, gloves, a hat and non-slip shoes; snow is possible.
Montreal in January
January in Montreal is freezing: average highs of -7°C and lows of -18°C, around 72 mm of rain (mostly dry) and 92% humidity — about 29°C colder than Hong Kong.
👕 A heavy down jacket, thermals, gloves, a hat and non-slip shoes; big day–night swing, so dress in layers; snow is possible.
Montreal in February
February in Montreal is freezing: average highs of -5°C and lows of -16°C, around 68 mm of rain (mostly dry) and 90% humidity — about 28°C colder than Hong Kong.
👕 A heavy down jacket, thermals, gloves, a hat and non-slip shoes; big day–night swing, so dress in layers; snow is possible.
Montreal in March
March in Montreal is freezing: average highs of 0°C and lows of -9°C, around 76 mm of rain (mostly dry) and 87% humidity — about 24°C colder than Hong Kong.
👕 A down jacket, thermal base layers, scarf and gloves; big day–night swing, so dress in layers; snow is possible.
Montreal in April
April in Montreal is cold: average highs of 9°C and lows of -1°C, around 95 mm of rain (some rain) and 81% humidity — about 19°C colder than Hong Kong.
👕 A warm coat over a sweater, plus a scarf; big day–night swing, so dress in layers.
Montreal in MayBest month
May in Montreal is mild and cool: average highs of 17°C and lows of 7°C, around 93 mm of rain (some rain) and 79% humidity — about 15°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Long sleeves with a light jacket or sweater; big day–night swing, so dress in layers.
Montreal in JuneBest month
June in Montreal is pleasantly warm: average highs of 22°C and lows of 13°C, around 109 mm of rain (some rain) and 79% humidity — about 11°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; big day–night swing, so dress in layers.
Montreal in JulyBest month
July in Montreal is pleasantly warm: average highs of 25°C and lows of 16°C, around 95 mm of rain (some rain) and 76% humidity — about 9°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.
Montreal in AugustBest month
August in Montreal is pleasantly warm: average highs of 25°C and lows of 15°C, around 98 mm of rain (some rain) and 74% humidity — about 9°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.
Montreal in SeptemberBest month
September in Montreal is pleasantly warm: average highs of 21°C and lows of 10°C, around 88 mm of rain (some rain) and 75% humidity — about 13°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; big day–night swing, so dress in layers.
FAQ
›What is the best time to visit Montreal?
On temperature and rainfall, the most comfortable months in Montreal are May, Jun, Jul, Aug and Sep. The hottest month is July (average high 25°C) and the coldest is January (average low -18°C).
›What's the weather like in Montreal in October, and what should I wear?
October in Montreal is chilly: average highs of 12°C and lows of 3°C, around 114 mm of rain (some rain) and 81% humidity — about 18°C colder than Hong Kong. What to wear: A sweater plus a coat or windbreaker; big day–night swing, so dress in layers.
›What's the weather like in Montreal in November, and what should I wear?
November in Montreal is cold: average highs of 4°C and lows of -4°C, around 81 mm of rain (some rain) and 86% humidity — about 22°C colder than Hong Kong. What to wear: A down jacket, thermal base layers, scarf and gloves.
›When is the rainy season in Montreal?
Montreal is wettest in October, with about 114 mm on average, and driest in February, with about 68 mm.
›How cold does Montreal get? Does it snow?
The coldest month is January, averaging -7°C by day and -18°C at night. Nights regularly drop below freezing and snow is possible.
Planning a trip to Montreal?
More Canada weather
Popular destinations in October
Forecast data: Open-Meteo.com (CC BY 4.0), refreshed every 3 hours. Hottest month: July; coldest: January.