Montréal Weather in October
With daytime temperatures of 14°C (57°F) and nighttime lows of 5°C (41°F), October in Montréal brings moderate temperatures during the day. It is also the wettest month of the year, so pack an umbrella.
Rainfall in Montréal in October
Given that this is the rainiest month, it's wise to carry an umbrella to stay dry during unexpected showers. Past climate data indicates that roughly 13 days will see rain, totalling around 114 mm (4.5 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Montréal in October
In October, Montréal sees moderate temperatures, with highs of 14°C (57°F). Nights drop to around 5°C (41°F). The difference between afternoon and evening temperatures is usually noticeable. At 5°C (41°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Montréal in October
The month experiences a moderate amount of sunlight, with 140 hours of sunshine. This provides a nice balance between sunshine and clouds.
Wind Speed in Montréal in October
October sees wind speeds averaging 6 m/s (12 knots). You'll experience strong winds that cause whole trees to sway and require effort when walking against them. As an average, expect variation from moderate breezes to particularly windy days that affect daily routines.
Average water temperature in October
At 14°C (57°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.If you prefer enjoying temperate temperatures and rain-free days, May, June, July, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Montréal's climate page.
Montréal Temperature in October
Min Temperature
5°C (41°F)
Max Temperature
14°C (57°F)
Water Temperature
14°C (57°F)
Chance of Rain
42%
Precipitation
114 mm (4.5 in)
Rainy days
13 days
Humidity
62%
Windspeed
6 m/s (12 knots)
Sunshine
140 hours
Percentage Sunshine
43%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Montréal typically drop from around 16°C (61°F) at the start of October to approximately 10°C (50°F) by the end. Nights are cold, with lows typically ranging from 2°C (36°F) to 9°C (48°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Montréal in October
Browse day-by-day weather records for Montréal spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Montréal historical weather extremes in October
Based on weather observations in Montréal between 1976 and 2025, these are the recorded extremes during October.
- The warmest day in October was on October 5, 2025, with a maximum of 30°C (86°F).
- The coldest October day was on October 30, 2020, with a maximum of 2°C (36°F).
- The lowest overnight temperature recorded in October was -7°C (19°F) (October 31, 1988).
Best Places in Canada in October
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in October →
perfect weather
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tolerable
unpleasant
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What to Wear in Montréal in October
The weather can be unpredictable in October, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 14°C (57°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Montréal in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Montréal's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Montréal climate overview or explore weather in Canada.
