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Best time to visit Montreal, QC, Canada

Our verdict

The best time to visit Montreal is September-October

Montreal is a place lots of people visit almost all year round, but if you’re looking for the best time to go, September-October is definitely the time you should visit. This is based on a number of factors such as the weather, cost of flights and accommodation, peak travel periods and more.

The very hottest temperatures in Montreal get to around 29℃ (84℉) in the height of summer. In the winter, temperatures can get down to -18℃ (0℉) around January.

The longest days between sunrise and sunset in Montreal are usually in July, so if you want to get the most out of your daytime activities, be sure to plan your visit around this time. May sees the most amount of rain in a month if you’re ok with chancing getting drenched, so if you’re looking to stay dry, visit in September instead.

Find out everything you need to know about when to visit Montreal below, including detailed information about the weather and tools to help you find the best prices and book your trip.

Warmest month

July

Least rainfall

September

Most daylight

July

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Montreal

Montreal seasons

Before you continue, it’s important to know when the seasons are in Montreal as they might be different to yours depending on where in the world you’re travelling from. Montreal is in the Northern Hemisphere, so the seasons fall during these months:

Season Months
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in Montreal

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Montreal for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

Montreal climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Montreal for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

Montreal in January

  • Average temperature: -9℃ (16℉)
  • Average high temperature: -6℃ (22℉)
  • Average low temperature: -13℃ (9℉)
  • Average humidity: 90%
  • Average sunny days: 11 days
  • Average rainfall: 67mm (3") over 5 days
  • Average snow days: 18 days
11 days
of pure sunshine
5 days
of showers or rain

What to pack: If you’re heading to Montreal in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Montreal in February

  • Average temperature: -8℃ (18℉)
  • Average high temperature: -4℃ (24℉)
  • Average low temperature: -12℃ (11℉)
  • Average humidity: 90%
  • Average sunny days: 9 days
  • Average rainfall: 63mm (2") over 5 days
  • Average snow days: 18 days
9 days
of pure sunshine
5 days
of showers or rain

What to pack: If you’re heading to Montreal in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Montreal in March

  • Average temperature: -2℃ (28℉)
  • Average high temperature: 1℃ (34℉)
  • Average low temperature: -6℃ (22℉)
  • Average humidity: 85%
  • Average sunny days: 11 days
  • Average rainfall: 68mm (3") over 10 days
  • Average snow days: 13 days
11 days
of pure sunshine
10 days
of showers or rain

What to pack: If you’re heading to Montreal in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Montreal in April

  • Average temperature: 6℃ (43℉)
  • Average high temperature: 10℃ (50℉)
  • Average low temperature: 2℃ (35℉)
  • Average humidity: 74%
  • Average sunny days: 10 days
  • Average rainfall: 80mm (3") over 17 days
  • Average snow days: 5 days
10 days
of pure sunshine
17 days
of showers or rain

What to pack: If you’re heading to Montreal in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Montreal in May

  • Average temperature: 14℃ (57℉)
  • Average high temperature: 19℃ (65℉)
  • Average low temperature: 9℃ (48℉)
  • Average humidity: 73%
  • Average sunny days: 12 days
  • Average rainfall: 85mm (3") over 18 days
12 days
of pure sunshine
18 days
of showers or rain

What to pack: If you’re heading to Montreal in May, make sure you pack a warm jacket or coat.


Montreal in June

  • Average temperature: 18℃ (64℉)
  • Average high temperature: 22℃ (72℉)
  • Average low temperature: 13℃ (55℉)
  • Average humidity: 78%
  • Average sunny days: 11 days
  • Average rainfall: 76mm (3") over 17 days
11 days
of pure sunshine
17 days
of showers or rain

What to pack: If you’re heading to Montreal in June, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.


Montreal in July

  • Average temperature: 21℃ (70℉)
  • Average high temperature: 26℃ (78℉)
  • Average low temperature: 16℃ (61℉)
  • Average humidity: 77%
  • Average sunny days: 11 days
  • Average rainfall: 60mm (2") over 17 days
11 days
of pure sunshine
17 days
of showers or rain

What to pack: If you’re heading to Montreal in July, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Montreal in August

  • Average temperature: 20℃ (68℉)
  • Average high temperature: 25℃ (77℉)
  • Average low temperature: 15℃ (60℉)
  • Average humidity: 77%
  • Average sunny days: 13 days
  • Average rainfall: 66mm (3") over 16 days
13 days
of pure sunshine
16 days
of showers or rain

What to pack: If you’re heading to Montreal in August, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Montreal in September

  • Average temperature: 16℃ (61℉)
  • Average high temperature: 21℃ (69℉)
  • Average low temperature: 12℃ (53℉)
  • Average humidity: 76%
  • Average sunny days: 16 days
  • Average rainfall: 55mm (2") over 12 days
16 days
of pure sunshine
12 days
of showers or rain

What to pack: If you’re heading to Montreal in September, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.

Montreal in October

  • Average temperature: 9℃ (49℉)
  • Average high temperature: 13℃ (55℉)
  • Average low temperature: 6℃ (43℉)
  • Average humidity: 78%
  • Average sunny days: 14 days
  • Average rainfall: 84mm (3") over 15 days
  • Average snow days: 1 days
14 days
of pure sunshine
15 days
of showers or rain

What to pack: If you’re heading to Montreal in October, make sure you pack a warm jacket or coat.


Montreal in November

  • Average temperature: 2℃ (36℉)
  • Average high temperature: 5℃ (41℉)
  • Average low temperature: -1℃ (30℉)
  • Average humidity: 78%
  • Average sunny days: 14 days
  • Average rainfall: 69mm (3") over 11 days
  • Average snow days: 6 days
14 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Montreal in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Montreal in December

  • Average temperature: -5℃ (24℉)
  • Average high temperature: -2℃ (28℉)
  • Average low temperature: -8℃ (19℉)
  • Average humidity: 86%
  • Average sunny days: 11 days
  • Average rainfall: 75mm (3") over 9 days
  • Average snow days: 14 days
11 days
of pure sunshine
9 days
of showers or rain

What to pack: If you’re heading to Montreal in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.


Top FAQs

The hottest month of the year in Montreal is usually July, where temperatures tend to rise to around 26℃ (78℉) in the middle of the day or early afternoon.
The month with the least amount of rain in Montreal is generally around September. The dry season often coincides with cooler weather, so you should check the temperatures in September first to make sure it’s still a good time to go.
The rainiest time of year in Montreal is generally around May, although the wetter season can sometimes extend a few months either side of May too.
If you want to get the most out of your time visiting Montreal, or if you're just afraid of the dark, the days in July are usually the longest between sunrise and sunset.

Montreal map

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