Moncton Weather in December
December in Moncton brings very low temperatures, with highs of 2°C (36°F) and nights dropping to -8°C (18°F). It's the rainiest month of the year, so come prepared with waterproof gear.
Rainfall in Moncton in December
With the most rainfall occurring this month, it's practical to keep an umbrella handy for sudden downpours. Historically, approximately 17 days this month are expected to have snow/rain, averaging 115 mm (4.5 in). Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Moncton in December
In December, expect very low temperatures in Moncton, with highs of 2°C (36°F) and lows of -8°C (18°F) at night. The month of December belongs to the winter season. Time outdoors is usually more comfortable with proper winter clothing and protection from wind. Nights drop below freezing to -8°C (18°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. This month is marked by cold temperatures, so wearing layers is key to staying warm. Don't be caught off-guard by the cold.
Sunshine in Moncton in December
You can expect a moderate amount of sunlight, with approximately 101 hours. This means a pleasant mix of sun and overcast.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Moncton.
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 Moncton's climate page.
Moncton Temperature in December
Min Temperature
-8°C (18°F)
Max Temperature
2°C (36°F)
Chance of Rain
56%
Precipitation
115 mm (4.5 in)
Rainy days
17 days
Sunshine
101 hours
Percentage Sunshine
38%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Moncton typically drop from around 2°C (36°F) at the start of December to approximately -2°C (28°F) by the end. Nights are very cold, with lows typically ranging from -12°C (10°F) to -5°C (23°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 Moncton in December
Browse day-by-day weather records for Moncton spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Moncton historical weather extremes in December
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Moncton.
- On December 1, 2020, temperatures climbed to 15°C (59°F), marking the warmest December day on record.
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 →
perfect weather
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tolerable
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What to Wear in Moncton in December
Dress warmly and in layers for your trip to Moncton 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Moncton 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 Moncton's climate page.
See the full Moncton climate overview or explore weather in Canada.
