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
Weather in Montreal
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)
Montreal Temperatures (Celsius)
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)
Montreal Perceived Temperature (C)
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.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
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.
Snow on the Ground
The graph below shows the average snow on the ground in Montreal (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
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.
The graph below shows wind speed (max and average) in knots.
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|
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
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.