The weather in October in Montréal

It's cool to moderate in October in Montréal with an average temperature of 15°C. Temperatures this month range from a low of 11°C to a high of 18°C. At night, you can expect temperatures between 6°C and 11°C.

Looking for sun and warm weather? October isn’t a good month to be in Montréal. The temperatures are too low for a warm stay this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in October for Montréal, Canada. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 30°C in 2023, Montréal reached the highest temperature in October over the past 10 years. The lowest daytime temperature in this month was 1°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of -4°C to a highest value of 20°C.

Water temperature

The water temperature at Montréal is 19°C this month. Refreshing if you feel like a swim.

Precipitation and snowfall

In October, there is an average of 235 mm of precipitation, spread over 19 days. Of the total precipitation, about 0,3 cm falls as snow in October. The wind speed is around 3 Bft, mostly coming from the South.

Daily weather in October for Montréal

Click on any day in October to get detailed info about the usual weather on that day in Montréal. Check out the historical temperatures and precipitation over the past 10 years on this day.

October weather comparison

  Montréal New York
Average temperature 15°C 21°C
Max. temperature 18°C 26°C
Min. temperature 6°C -5°C
Total precipitation 235 mm 119 mm
Rainy days 19 days 13 days
Total snowfall 0,3 cm 0 cm
Snowy days 1 day 0 days

Start of October

The month of October starts in Montréal with cool temps, averaging around 17°C during the day and nights around 10°C.

Mid October

By mid-October, daytime temps drop to around 15°C, with nights around 8°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of October

By the end of October, the average daytime temperature in Montréal is around 13°C, while nighttime temps are about 7°C. There’s a significant chance of many days with precipitation.

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UV index

The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.

Check out the climate of Montréal for all months and discover the best travel time

Curious about the weather in other parts of Canada? Check out the climate and weather for spots like Vancouver, Toronto, Niagara Falls, or explore other destinations in Canada.

Temperature charts

These charts show the average temperatures in October in Montréal, Canada. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in October in Montréal

Temperature in October in Montréal over the years

Precipitation charts

These charts show the average amount of precipitation in October in Montréal, Canada. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in October in Montréal

Total precipitation in October in Montréal over the years

Daily Snowfall in October in Montréal

Snowfall in October in Montréal per year

Daily UV index in October in Montréal

This chart shows the average daily UV index in October in Montréal, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in October in Montréal

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Average weather in Montréal by month

Click on a month below to see detailed weather info for Montréal. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.