Montréal Weather in December
During December, Montréal experiences very low daytime temperatures of 0°C (32°F) and cooler nights around -8°C (18°F). As part of the winter season, expect quite a bit of snow/rainfall. Around 92 mm (3.6 in) is typical.
Rainfall in Montréal in December
Past climate data indicates that roughly 15 days will see snow/rain, totalling around 92 mm (3.6 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Montréal in December
In December, expect very low temperatures in Montréal, with highs of 0°C (32°F) and lows of -8°C (18°F) at night. The month of December belongs to the winter season. Even daytime conditions remain cold, making layers, a warm coat, and winter accessories a good idea. At -8°C (18°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating. With temperatures this low, you'll need to dress warmly. Staying prepared is crucial to avoid the discomfort of the cold.
Sunshine in Montréal in December
This month is characterized by fewer sunny days, with about 80 hours of sunshine. It's great for those who appreciate cooler, less sunny days.
Wind Speed in Montréal in December
December has wind speeds averaging 7 m/s (14 knots). You can expect generally windy conditions with strong breezes affecting daily routines on typical days. As an average, some days have moderate strong winds while others feature more intense gusts that make walking and movement challenging.
Average water temperature in December
At 11°C (52°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Montréal.
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 December
Min Temperature
-8°C (18°F)
Max Temperature
0°C (32°F)
Water Temperature
11°C (52°F)
Chance of Rain
51%
Precipitation
92 mm (3.6 in)
Rainy days
15 days
Humidity
71%
Windspeed
7 m/s (14 knots)
Sunshine
80 hours
Percentage Sunshine
31%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Montréal typically drop from around 1°C (34°F) at the start of December to approximately -4°C (25°F) by the end. Nights are very cold, with lows typically ranging from -12°C (10°F) to -4°C (25°F).
Average temperatures in December
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 December
Historical weather for Montréal in December
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 December
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Montréal.
- The warmest day in December was on December 6, 2001, with a maximum of 16°C (61°F).
Best Places in Canada in December
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in December →
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What to Wear in Montréal in December
Dress warmly and in layers for your trip to Montréal in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. The water temperature sits at about 11°C (52°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Montréal in December
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.
