Weather in Montreal in October 2025
Average weather
Average temperature in Montreal in October
The expected average maximum temperature in October is +16°C with a maximum of +30°C and a minimum of -1°C.
The average maximum temperature goes down 65% by the end of the month, compared with the beginning of the month, from +25°C to +5°C.
Is Montreal warm or cold in October?
Montreal is typically mild in October.
Maximum temperatures go down compared to the previous month from +21°C to +13°C. The minimum temperature also goes down from +12°C to +6°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how October is compared to other months in Montreal:
Climate in Montreal in October
| September | October | November | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +21°C | +13°C | +6°C | ||||
| Min. temperature | ||||||
| -3°C | -6°C | -20°C | ||||
| Max. temperature | ||||||
| +34°C | +30°C | +23°C | ||||
| Rainfall | ||||||
| 98 mm | 113 mm | 78 mm | ||||
| Wind | ||||||
| 3 m/s | 4 m/s | 4 m/s | ||||
| Humidity | ||||||
| 73% | 73% | 74% | ||||
| Air pressure | ||||||
| 1016 HPa | 1015 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 7 | 5 | 3 | ||||
| Cloudy days | ||||||
| 9 | 9 | 10 | ||||
| Rainy days | ||||||
| 13 | 16 | 10 | ||||
| Snowy days | ||||||
| 0 | 1 | 7 | ||||
October typically has worse weather conditions compared to September. It’s getting colder in October. From +21°C in the day, the average maximum temperature lowers to +13°C. Prepare for more rain. Average rainfall goes from 98 mm to 113 mm. Humidity levels don’t change as the month goes on, averaging around 73%. Winds are stronger in comparison to September, going up from 3 m/s to 4 m/s on average. The days becoming less sunny, going from 7 sunny days in September to 5 in October.
November brings much the same weather, it remains ok.
Wind
The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Montreal is gradually increasing during October, going from 2 m/s to 4 m/s over the course of the month.
Rain
Snow
Here’s how October is compared with other months in the amount of snow, total mm:
How was the weather last October in Montreal?
Climate Change over Years
The climate in Montreal in October has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+10°C) and the highest in 2021 (+14°C). The driest year was 1985 with only 524 mm of rainfall, and the wettest year was 2023 with 2843 mm.
FAQ
Is October a good time to visit Montreal?
Can you sunbathe in Montreal in October?
Is Montreal rainy in October?
Is it sunny in Montreal in October?
Other cities in Canada
Monthly weather in Montreal
Source of the data
For this page, we’ve looked at the typical weather in Montreal, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.