The best times to visit Old Montreal for ideal weather are

May 14th 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.



Other Old Montreal Travel Info

Weather in Old Montreal


Average temperatures in Old Montreal vary an incredible amount. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 28th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Old 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.

Old Montreal Temperatures (Fahrenheit)


Old Montreal Temperatures (Celsius)


“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.

Old Montreal Perceived Temperature (F)


Old Montreal Perceived Temperature (C)



Average Old 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 significant precipitation in Old Montreal are January, November, and then September. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early February. For example, on the week of February 5th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late May to early June with an average of 3 days of significant precipitation the week of May 28th.

When can you find snow in Old Montreal? Weather stations report a bit of annual snow likely to be deepest around December, especially close to late December. The best time to ski (if at all) in Old Montreal is often around around November 19th when fresh powder is deepest. 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 Old Montreal.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 20% 0 2.6
Feb 22% 0 2.5
Mar 22% 0 2.9
Apr 26% 0 3.7
May 26% 0 4.1
Jun 28% 0 4.5
Jul 25% 0 4
Aug 23% 0 4.2
Sep 21% 0 3.3
Oct 27% 0 4.4
Nov 21% 0.4 2.6
Dec 32% 3 5

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 20 0 6.6
Feb 22 0 6.4
Mar 22 0 7.4
Apr 26 0 9.4
May 26 0 10.4
Jun 28 0 11.4
Jul 25 0 10.2
Aug 23 0 10.7
Sep 21 0 8.4
Oct 27 0 11.2
Nov 21 1 6.6
Dec 32 7.6 12.7


Humidity and Wind

Old Montreal has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is April (45.6% relative humidity), and the most humid month is December (67.8%).

Wind in Old Montreal is usually extremely calm. The windiest month is March, followed by April and May. March’s average wind speed of around 4 knots (4.7 MPH or 7.5 KPH) is considered “a 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 Old Montreal.

Avg. Relative Humidity


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

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 3.7 Barely noticeable 6.3 Light breeze
Feb 3.7 Barely noticeable 6.4 Light breeze
Mar 4 Light breeze 6.8 Light breeze
Apr 4 Light breeze 6.9 Light breeze
May 3.8 Barely noticeable 6.5 Light breeze
Jun 3.2 Barely noticeable 5.6 Light breeze
Jul 3.1 Barely noticeable 5.6 Light breeze
Aug 3 Barely noticeable 5.4 Light breeze
Sep 3.1 Barely noticeable 5.6 Light breeze
Oct 3.2 Barely noticeable 5.7 Light breeze
Nov 3.3 Barely noticeable 5.9 Light breeze
Dec 3.4 Barely noticeable 6.2 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 Old Montreal?



The Busiest and Least Crowded Months

The busiest month for tourism in Old Montreal, QC, 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 Old 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

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is very reliable. 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 Old 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 far warmer temperatures in the later months. Rain is somewhat common with 7 to 8 days of significant precipitation per month. Spring is the second busiest 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 the most precipitation with 7 to 8 days of precipitation per month. June – August is the busiest season for tourism in Old 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 significant amount: 6 to 8 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Old 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 fair amount: 6 to 10 times per month. These times of year are fairly slow with tourists.


Best Times to TravelCanada › Old Montreal, QC, Canada