The best times to visit Montreal for ideal weather are

May 7th to October 7th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 


Montreal Travel Guide

  • Safety
  • The busiest and least popular months
  • Overall travel experience by time of year
  • Weather in Montreal

    Temperature

    Average temperatures in Montreal vary greatly and are seasonally temperate. The area is in the top 62 percent of tourist destinations for pleasant weather. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Montreal, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid-July where highs are regularly around 81.4°F (27.4°C) with temperatures rarely dropping below 65.1°F (18.4°C) at night.

    Montreal Temperatures (Fahrenheit)

    Key
    High
    Average
    Low

    Montreal Temperatures (Celsius)

    Key
    High
    Average
    Low

    “Feels-Like” Temperatures

    The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

    Montreal Perceived Temperature (F)

    Key
    High
    Average
    Low

    Montreal Perceived Temperature (C)

    Key
    High
    Average
    Low

     

    Average Montreal Temperatures by Month

    Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

    Show Fahrenheit

    Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
    Jan 25.9 17.7 10.8
    Feb 27.2 19.2 12.4
    Mar 39.2 30.3 22.9
    Apr 55.4 45.3 37.3
    May 69.8 59 49.9
    Jun 76.5 66.6 58.7
    Jul 81 71.6 64.1
    Aug 79.3 70 62.4
    Sep 73 62.9 55.2
    Oct 58.3 50 43.4
    Nov 46 38.2 32.3
    Dec 32 25.1 19.3

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan -3.4 -7.9 -11.8
    Feb -2.7 -7.1 -10.9
    Mar 4 -0.9 -5.1
    Apr 13 7.4 2.9
    May 21 15 9.9
    Jun 24.7 19.2 14.8
    Jul 27.2 22 17.8
    Aug 26.3 21.1 16.9
    Sep 22.8 17.2 12.9
    Oct 14.6 10 6.3
    Nov 7.8 3.4 0.2
    Dec 0 -3.8 -7.1

     

    Precipitation (Rain or Snow)

    If dry weather is what you’re after, the months with the lowest chance of precipitation in Montreal are December, June, and then February. The lowest chance of rain or snow occurs around mid-to late August. For example, on the week of August 20th there are only 1.8 days of precipitation on average. By contrast, it’s most likely to rain or snow in late May to early June with an average of 4 days with significant precipitation the week of May 28th.

    When can you find snow in Montreal? Weather stations report a bit of annual snow likely to be deepest around December, especially close to late December. Powder (new snow) is most often falls around December 24th. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

    Chance of Precipitation

    The graph below shows the % chance of rainy and snowy days in Montreal.

    Key
    Days with precipitation

    Snow on the Ground

    The graph below shows the average snow on the ground in Montreal (in).

    Key
    Snow depth

    Average Rain and Snow by Month

    Show Inches

    Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
    Jan 37.1 0 0.08
    Feb 40 0 0.09
    Mar 35.7 0 0.09
    Apr 38.6 0 0.12
    May 38.6 0 0.13
    Jun 44.3 0 0.15
    Jul 34.3 0 0.13
    Aug 34.3 0 0.14
    Sep 31.4 0 0.11
    Oct 37.1 0 0.14
    Nov 34.3 0.4 0.09
    Dec 48.6 3 0.16

    Show Centimeters

    Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
    Jan 37.1 0 0.2
    Feb 40 0 0.23
    Mar 35.7 0 0.23
    Apr 38.6 0 0.3
    May 38.6 0 0.33
    Jun 44.3 0 0.38
    Jul 34.3 0 0.33
    Aug 34.3 0 0.36
    Sep 31.4 0 0.28
    Oct 37.1 0 0.36
    Nov 34.3 1 0.23
    Dec 48.6 7.6 0.41

     

    Humidity and Wind

    Montreal has slightly low to average humidity compared to most tourist destinations. The least humid month is April (45.6% relative humidity), and the most humid month is December (67.8%).

    Wind in Montreal is usually calm. The windiest month is March, followed by April and May. March’s average wind speed of around 4 knots (4.6 MPH or 7.4 KPH) is considered “light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid-April where average top sustained speeds reach 7.2 knots, which is considered a gentle breeze.

    Relative Humidity (%)

    The graph below shows the average % humidity by month in Montreal.

    Key
    Avg. Relative Humidity

    Wind

    The graph below shows wind speed (max and average) in knots.

    Key
    Max Sustained Wind
    Average Daily Wind

    Average Wind Speeds

    Show Wind Speeds

    All wind speeds are in knots.

    Month Avg. Wind Meaning (Beaufort) Avg. Maximum Sustained Wind Meaning (Beufort)
    Jan 3.7 light air 6.3 a light breeze
    Feb 3.7 light air 6.4 a light breeze
    Mar 4 a light breeze 6.8 a light breeze
    Apr 4 a light breeze 6.9 a light breeze
    May 3.8 light air 6.5 a light breeze
    Jun 3.2 light air 5.6 a light breeze
    Jul 3.1 light air 5.6 a light breeze
    Aug 3 light air 5.4 a light breeze
    Sep 3.1 light air 5.6 a light breeze
    Oct 3.2 light air 5.7 a light breeze
    Nov 3.3 light air 5.9 a light breeze
    Dec 3.4 light air 6.2 a light breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan 60.1
    Feb 56.2
    Mar 49.1
    Apr 45.6
    May 48.3
    Jun 57.5
    Jul 58.1
    Aug 61.1
    Sep 61.2
    Oct 60.8
    Nov 59.2
    Dec 67.8

     

    Is it Safe to Travel to Montreal?

    As of 6/28/2017 there are no travel advisories or warnings for Canada; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories.
     

    The Busiest and Least Crowded Months

    The busiest month for tourism in Montreal, Canada is July, followed by August and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Montreal in December. Those willing to visit at these times will likely find it the least expensive month.

    Estimated Tourism by Month

     

    Most Popular Months to Visit

    Key
    Tourists Seeking Accommodations

    Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Displayed data is calculated relative to the peak, so a score of 47.2 in December means 47.2% of the tourists vs. July.

    Overall Montreal Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel moderately cold. Highs range from 74°F (23.3°C) and 30.4°F (-0.9°C) with warmer temperatures in the later months. Rain is very common with 11 to 12 days of precipitation per month. Spring is busy for tourism, which makes it a good time for those looking for things to do.

    Summer (June through August)

    The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with 11 to 13 days of precipitation per month. June – August is the busiest season for tourism in Montreal, so lodging and other accommodations may cost more than usual.

    Fall (September through November)

    Fall daily highs range from 78.5°F (25.8°C) and 39.3°F (4.1°C), which will feel chilly given the humidity and wind. It rains or snows a great amount: 9 to 12 days per month. Tourism is the slowest during these months due to the weather, so hotels may be lower priced.

    Winter (December through February)

    Weather is far too cold this time of year in Montreal to be enjoyable for warm weather travelers. The average high during this season is between 35.9°F (2.2°C) and 20.8°F (-6.2°C). On average, it rains or snows a great amount: 11 to 15 times per month. These times of year are fairly slow with tourists.

     


     

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