Sisimiut Weather in December
December in Sisimiut brings very low temperatures around -8°C (18°F) during the day, dropping to -13°C (9°F) at night, with quite a bit of snowfall expected, averaging around 60 mm (2.4 in) for the month.
Rainfall in Sisimiut in December
Historically, December sees about 14 days of snow, with a monthly average of 60 mm (2.4 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Sisimiut in December
In December, Sisimiut sees very low temperatures, with highs of -8°C (18°F). Nights drop to around -13°C (9°F). It stays very cold throughout much of the day, so warm winter clothing is essential. Nights drop below freezing to -13°C (9°F). An extra blanket is worth packing if you're unsure about the heating where you're staying. With the coldest weather of the year, this month demands extra warmth. Be sure to layer up to stay comfortable.
Sunshine in Sisimiut in December
This month sees fewer sunny days, with about 0 hours of sunshine, perfect for those who enjoy cooler temperatures.
Wind Speed in Sisimiut in December
Wind speeds average 3 m/s (6 knots) during December. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.To explore more travel options, our weather planner can help you discover destinations worldwide.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Greenland, check out our Sisimiut's climate page.
Sisimiut Temperature in December
Min Temperature
-13°C (9°F)
Max Temperature
-8°C (18°F)
Chance of Rain
47%
Precipitation
60 mm (2.4 in)
Rainy days
14 days
Humidity
80%
Windspeed
3 m/s (6 knots)
Sunshine
0 hours
Percentage Sunshine
Daily Historical Temperatures
47-year average (1976-2025)
Based on our historical records, temperatures in Sisimiut typically stay consistent throughout December, with daily highs averaging around -8°C (18°F). Nights are very cold, with lows typically ranging from -14°C (7°F) to -9°C (16°F).
Average temperatures in December
Historical weather for Sisimiut in December
Browse day-by-day weather records for Sisimiut spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sisimiut historical weather extremes in December
Based on 19 years of weather observations (2006-2025), these are the most extreme conditions recorded in Sisimiut.
- On December 20, 2021, temperatures climbed to 12°C (54°F), marking the warmest December day on record.
- Sisimiut experienced its chilliest December day on December 25, 2016, reaching only -18°C (0°F).
- The lowest overnight temperature recorded in December was -21°C (-6°F) (December 17, 2015).
- The wettest December day on record brought 33 mm (1.3 in) of precipitation to Sisimiut (December 23, 2018).
Best Places in Greenland in December
Find out more about the weather in Greenland and which places have the best travel conditions in this month. See all of Greenland in December →
perfect weather
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tolerable
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What to Wear in Sisimiut in December
It's wise to bundle up for freezing conditions in Sisimiut in December. If you have a winter jacket with good insulation, waterproof winter boots, thermal layers, and warm accessories it's smart to pack them. Hand and foot warmers can be lifesavers, especially during the night. Wet weather is likely, so pack waterproof gear for multiple rainy days. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Sisimiut 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 Greenland, check out our Sisimiut's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Sisimiut climate overview or explore weather in Greenland.
