January Weather in Sisimiut, Greenland

Last updated: August 21, 2025

In January, the weather in Sisimiut, Greenland is characterized by a chilly climate, with average temperatures hovering around -12°C (11°F). Daytime highs can reach up to a brisk 2°C (37°F), while nighttime lows plummet to -23°C (-8°F), creating a stark contrast. Precipitation is not uncommon, with a total of 49 mm (1.9 in) falling over approximately 12 days, and high humidity levels at 96% contribute to a penetrating cold. This combination of temperatures and moisture defines January as a month of stark beauty, enveloping Sisimiut in a winter wonderland.

January Temperature in Sisimiut

In January in Sisimiut, Greenland, temperatures can be quite frigid, with a minimum dipping to -23°C (-8°F) and an average hovering around -12°C (11°F). The month sees a maximum temperature climb to 2°C (37°F), showcasing a stark contrast to the depths of winter. As we transition into February, temperatures plunge further, with lows reaching an extreme -30°C (-21°F), indicating a trend of increasing cold that characterizes the early part of the year. By March, while still cold, the temperatures begin to ease slightly, with averages rising to -13°C (8°F), suggesting a slow thaw. This gradual warming trend continues into April, where mild increases lead to maximum temperatures of 5°C (42°F). As spring approaches, the temperatures rise consistently, indicating a noteworthy shift from the harsh winter chill towards more temperate conditions, providing a glimpse of the brighter months ahead.

January Weather in Sisimiut: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Sisimiut, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sisimiut, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec1028213038434437302119
Data source: Temperature data for Sisimiut generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Sisimiut

January in Sisimiut, Greenland, ushers in a relatively wet winter with an average precipitation of 49 mm (1.9 in) across approximately 12 days. This substantial amount stands out against the subsequent month of February, which sees a dramatic drop to just 19 mm (0.8 in) over a mere 5 days. As the seasons shift, March brings a slight resurgence with 44 mm (1.8 in), hinting at the variability of Greenland's climate. This trend continues as spring approaches, with precipitation peaking in the summer months—most notably July, which averages 80 mm (3.2 in). Thus, January's precipitation reflects not only the depths of winter conditions but also sets the stage for the fluctuating weather patterns that characterize Sisimiut's climate throughout the year.

January Precipitation Trends in Sisimiut

The chart displays monthly precipitation patterns in Sisimiut, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Sisimiut, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec491945512135806653757570
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Sisimiut

In January, Sisimiut, Greenland experiences a remarkable humidity level of 96%, making it one of the most humid months of the year. As winter progresses into February, humidity slightly decreases to 93%, yet remains notably high, reflecting the region's cold and moist climate. By March, humidity again stabilizes at 94%, maintaining the winter's characteristic dampness. A gradual decline begins in April as humidity drops to 89%, continuing through May at 87%. As the temperatures warm into the summer months, humidity levels soften further, reaching their lowest point in July and August at 81% and 89%, respectively. The trend shows a clear shift towards drier conditions as spring evolves, with humidity gradually climbing again into the fall and winter, peaking once more in December at 90%. This cyclical pattern highlights the intrinsic link between temperature and humidity in Sisimiut's unique Arctic climate.

January Average Humidity in Sisimiut

This chart illustrates the average monthly humidity levels in Sisimiut, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Sisimiut is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%93%94%89%87%82%81%89%85%86%89%90%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Sisimiut

In Sisimiut, Greenland, the UV Index during January typically reflects a low exposure category, registering at 1. This means outdoor enthusiasts can enjoy the winter landscape with a burn time of about 45 minutes before needing to seek shade or cover. Interestingly, the trend remains consistent into February, with identical index levels and burn times. As spring approaches in March, the UV Index sees a slight increase to 2, still categorized as low, signaling that while sun exposure is minimal, it’s a gentle reminder of the rising daylight. This gradual rise continues into April and May, where the index reaches 4 and 5 respectively, marking a shift to moderate exposure and shorter burn times. By June, the peak of summer arrives with a UV Index of 6, indicating high exposure and a significantly reduced burn time of just 25 minutes. As summer wanes into July and August, the index stabilizes around 5 and 4, before tapering off in the autumn months to back to 2 in October and returning to the low category in November and December. Overall, the UV Index in Sisimiut highlights a clear seasonal pattern, allowing residents and visitors to plan their sun protection accordingly throughout the year. For more information on UV levels, check out Sisimiut UV Index.

Maximum UV Index Levels in Sisimiut for January

The chart shows the monthly maximum UV Index (UVI) for Sisimiut in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Sisimiut typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112456543211
Data source: Sisimiut January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Sisimiut

In Sisimiut, Greenland, January greets its residents with a mere 19 hours of sunshine, casting a long shadow into the winter months. However, as the calendar flips to February, there’s a noticeable uplift with sunshine soaring to 124 hours, hinting at the gradual return of daylight. This trend continues through the spring months, peaking in May when the sun graces the town with a remarkable 356 hours of light, a joyful contrast to the winter's darkness. The summer months maintain high levels of brightness, with July offering 343 hours, before a gentle decline begins in August. As autumn approaches, the sunlight diminishes swiftly, reducing to just 41 hours in November and a scant 1 hour by December. This rhythmic cycle of light not only defines the seasons in Sisimiut but also shapes the community’s vibrant connection to both the sun and their stunning, stark landscape.

Monthly Sunshine Duration in Sisimiut: January Highlighted

The January sunshine duration represents the total number of hours Sisimiut experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec19h124h208h287h356h333h343h302h229h136h41h1h
Data source: Sisimiut January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sisimiut During January

In Sisimiut, Greenland, January presents a modest chance of sunny weather, with only a 22% likelihood of sun. As the year progresses, sunlight becomes more common, particularly in February when the chance almost doubles to 41%. This trend displays a consistent increase in sunny days leading into spring, with March experiencing a sharp decline at just 9%. Notably, this fluctuation reflects the transitional nature of Greenland's climate, where winter's grip lessens, making way for a more balanced distribution of sunshine. Despite the potential for brighter days in April and May, the lingering winter chill in January leaves residents and visitors with limited sunshine, beckoning them to embrace the beauty of winter’s stark landscapes.

Percentage of Sunny Days in January in Sisimiut

The chart illustrates the percentage of sunny days in Sisimiut throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Sisimiut experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%41%9%24%31%22%35%19%57%36%20%24%
Data source: Sisimiut January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sisimiut in January

In Sisimiut, Greenland, January marks the transition from the fading light of winter to the gradual return of longer days. With only 6 hours of daylight, the month is a stark contrast to the 23 hours of sun experienced in June. As February comes, sunlight increases to 8 hours, hinting at the seasonal shift ahead. By March, longer days bring 11 hours of daylight, a sign that spring is near. April continues this trend, offering 15 hours that further signal the awakening of nature. The progression toward summer culminates in May's impressive 20 hours, followed by the peak in June when the sun nearly never sets. However, as summer wanes, July sees a slight decrease to 21 hours, and this dwindling continues into August with 16 hours. The descent into the darker months resumes in September and October, with 13 and 9 hours respectively, while November returns to the depths of winter with just 5 hours. December provides a brief respite with 18 hours, reminding us of the stark beauty of the Arctic cycle.

Average Daylight Hours in Sisimiut for January

The chart illustrates the variation in daylight duration in Sisimiut throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 10m8h 2m11h 49m15h 39m20h23h 58m21h 45m16h 54m13h 2m9h 17m5h 20m18h 21m
Data source: Sisimiut daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Sisimiut

In January, the winds of Sisimiut, Greenland maintain a brisk cadence, averaging 4.5 m/s (10 mph), just slightly stronger than the winds seen in February at 4.0 m/s (9 mph). As winter continues, March sees a mild increase, with wind speeds rising to 4.7 m/s (10 mph), hinting at the approaching thaw. This trend experiences a gentle decline in April and May, where speeds drop to 4.1 m/s (9 mph) and 3.3 m/s (7 mph), marking a brief lull before summer. From there, the winds return to steadier patterns, fluctuating between 3.3 m/s (7 mph) and 4.8 m/s (11 mph) throughout the warmer months, with December boasting the highest average of the year. This rhythmic transition in wind speeds not only reflects the changing seasons but also crafts an engaging backdrop to life in this remote Arctic community.

Average January Wind Speed in Sisimiut

The chart displays monthly wind speed patterns in Sisimiut, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.5 m/s4.04.74.13.33.43.94.44.04.24.34.8
Data source: Sisimiut January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Sisimiut Compares to Other Months

Weather in Sisimiut varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Sisimiut, focusing on differences in temperature, rainfall, humidity, and UV levels.

January typically experiences milder temperatures compared to February, with average highs reaching 2°C (37°F) and lows around -23°C (-8°F). In contrast, February sees a significant drop in temperatures, averaging -17°C (2°F) with lows dipping to -30°C (-21°F). Precipitation is more frequent in January, occurring on 12 days and totaling 49 mm (1.9 in), while February has only 5 days of precipitation amounting to 19 mm (0.8 in). Despite the slight decrease in humidity from January to February, both months remain quite humid, with January at 96% and February at 93%. For more details on February weather, check out Sisimiut weather in February.

January and March exhibit notable differences in weather conditions, despite being just a couple of months apart. In January, temperatures hover between a minimum of -23°C (-8°F) and a maximum of 2°C (37°F), with an average temperature of -12°C (11°F). The month experiences significant precipitation, with about 49 mm (1.9 in) falling over 12 days, along with high humidity levels at 96%. Conversely, March sees slightly colder temperatures, with a minimum of -26°C (-15°F) and a maximum of 0°C (32°F), resulting in an average temperature of -13°C (8°F). Precipitation decreases modestly to 44 mm (1.8 in) over 10 days, and humidity remains relatively high at 94%. For more specifics about March weather, you can check out Sisimiut weather in March.

In comparing the weather between January and April, it's evident that while both months experience cold temperatures, April offers a slight reprieve. January sees a significant chill, with average temperatures around -12°C (11°F) and a minimum plunging to -23°C (-8°F). In contrast, April exhibits a warmer average of -6°C (21°F) and a maximum of 5°C (42°F), making it more bearable for outdoor activities. Precipitation levels are similar, with January receiving 49 mm over 12 days and April experiencing 51 mm over 10 days, though humidity drops from 96% in January to 89% in April, suggesting somewhat drier conditions. For a detailed look at April's weather in this region, check out Sisimiut weather in April.

January and May present stark contrasts in weather conditions. In January, temperatures plummet to a minimum of -23°C (-8°F) with an average of -12°C (11°F) and a maximum reaching just 2°C (37°F). The month is characterized by high humidity at 96% and significant precipitation, totaling 49 mm (1.9 in) spread over 12 days. In contrast, May experiences milder temperatures, with a minimum of -11°C (12°F), an average of -1°C (31°F), and a maximum of 9°C (48°F). Precipitation decreases to 21 mm (0.8 in) and occurs over only 4 days, accompanied by slightly lower humidity at 87%. For more detailed insights, you can check out Sisimiut weather in May.

The weather in January and June presents a stark contrast in terms of temperature and humidity. January experiences frigid temperatures, with average highs only reaching 2°C (37°F) and lows plummeting to -23°C (-8°F). The month is characterized by high humidity at 96%, contributing to a damp and chilly atmosphere, with 49 mm (1.9 in) of precipitation over 12 days. In contrast, June brings a much milder climate, with average temperatures ranging from a minimum of -2°C (28°F) to a maximum of 12°C (54°F). Although June has slightly less precipitation at 35 mm (1.4 in) over 9 days, the humidity drops to 82%, offering a more comfortable weather experience. For more specific details, you can refer to Sisimiut weather in June.

In January, the weather is harshly cold with temperatures ranging from a chilling -23°C (-8°F) at night to a maximum of just 2°C (37°F) during the day, accompanied by high humidity levels of 96%. Precipitation occurs on about 12 days, totaling 49 mm (1.9 in), making the winter months feel even more frigid. In stark contrast, July brings milder conditions with minimum temperatures around -1°C (31°F) and daytime averages hitting 6°C (43°F) to a maximum of 14°C (57°F). While July sees slightly higher precipitation at 80 mm (3.2 in) over 11 days, the humidity drops to a more comfortable 81%. For those interested in more detailed insights, you can check Sisimiut weather in July.

In January, the weather is significantly colder, with temperatures ranging from a frigid minimum of -23°C (-8°F) to a maximum of just 2°C (37°F), and an average temperature of -12°C (11°F). The month experiences high humidity at 96% and around 49 mm (1.9 inches) of precipitation over 12 days. In contrast, August sees much milder conditions, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 13°C (56°F), averaging around 7°C (44°F). Although precipitation increases to 66 mm (2.6 inches) over just 11 days, the humidity remains lower at 89%. For more detailed information on August weather in Sisimiut, you can visit Sisimiut weather in August.

In January, the weather is severely cold, with average temperatures hovering around -12°C (11°F) and nighttime lows plummeting to -23°C (-8°F). The month experiences significant precipitation, totaling 49 mm (1.9 in) across approximately 12 days, accompanied by high humidity at 96%. In contrast, September brings milder temperatures, with averages around 3°C (37°F) and minimums of -4°C (25°F). Although there is a slight increase in precipitation, totaling 53 mm (2.1 in) over 10 days, the humidity is lower at 85%. For a more detailed look at September weather, check out Sisimiut weather in September.

In January, the weather is notably harsher, with average temperatures hovering around -12°C (11°F) and dipping to a minimum of -23°C (-8°F). In contrast, October offers a milder climate, with average temperatures reaching -1°C (30°F) and lows of -12°C (11°F). While January experiences a significant amount of humidity at 96%, October's humidity is slightly lower at 86%. Precipitation is also more pronounced in October, with 75 mm (2.9 in) over 11 days compared to January’s 49 mm (1.9 in) spanning 12 days. For more detailed weather information, check Sisimiut weather in October.

In January, temperatures in Sisimiut are notably colder, with a minimum of -23°C (-8°F) and an average of -12°C (11°F), compared to November's milder minimum of -15°C (5°F) and average of -6°C (22°F). January also experiences lower maximum temperatures, peaking at just 2°C (37°F), while November can reach up to 4°C (39°F). Precipitation is relatively high in both months, with January receiving 49 mm (1.9 in) over 12 days, while November sees 75 mm (3.0 in) across 14 days, indicating more frequent precipitation. Humidity levels remain high in both months, but January is slightly more humid at 96%, compared to November's 89%. For more detailed insights, you can check Sisimiut weather in November.

In comparing January and December weather, January is notably colder, with average temperatures hovering around -12°C (11°F), compared to December's milder average of -7°C (19°F). While both months experience frequent precipitation, December has a slightly higher total at 70 mm (2.8 in) over 14 days, whereas January sees 49 mm (1.9 in) across 12 days. Additionally, January features higher humidity levels at 96%, compared to December's 90%. For a more detailed overview, you can check out Sisimiut weather in December.

Compare Sisimiut's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Sisimiut

As January settles over Sisimiut, the charm of winter is palpable. This month stands out with its crisp air and profound cold, where temperatures often plunge into the depths of winter, creating an ambiance that starkly contrasts the milder months of the year. The landscape is blanketed in snow, contributing to a high humidity that makes the chill feel even more pronounced. With increased precipitation over several days, January sets the stage for a winter wonderland, beckoning outdoor adventure seekers to embrace the frosty beauty. For a more in-depth look at the trends and conditions that characterize Sisimiut's climate, explore Sisimiut Climate.