December Weather in Suomussalmi, Finland

Last updated: August 21, 2025

Experience the chilling embrace of Suomussalmi, Finland, in December, where winter sets in with an icy grip. Daily temperatures can reach a maximum of 3°C (37°F), while the average hovers around -6°C (22°F), plummeting to a frigid minimum of -22°C (-7°F). This month is characterized by significant precipitation, totaling 66 mm (2.6 in) over 18 days, contributing to the enchanting snowy landscape. Expect 100% humidity, adding to the wintry atmosphere—a true paradise for winter enthusiasts and a test of endurance for all.

December Temperature in Suomussalmi

In December, Suomussalmi, Finland, transitions into the heart of winter, with temperatures that reflect the chill of the season. The month kicks off with a minimum of -22°C (-7°F), while the average temperature hovers around -6°C (22°F), providing a stark contrast to the milder months preceding it. Daytime highs barely break the freezing mark, reaching a maximum of 3°C (37°F). This trend highlights the shift from the relatively moderate conditions of autumn to the more intense cold typical of a northern winter. As daylight dwindles and snow blankets the landscape, December in Suomussalmi invites for cozy indoor gatherings and an enchanting outdoor winter wonderland.

December Weather in Suomussalmi: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Suomussalmi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Suomussalmi, December 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).
JanFebMarAprMayJunJulAugSepOctNovDec161523324356605646372821
Data source: Temperature data for Suomussalmi generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Suomussalmi

December in Suomussalmi, Finland, brings a notable shift in precipitation patterns as the year draws to a close. With an average precipitation of 66 mm (2.6 in), December reflects a consistent winter embrace, characterized by frequent weather changes across 18 days of the month. This uptick in precipitation days marks a peak in the seasonal rhythm, culminating from the milder, wetter fall months. While maintained at a lower level compared to the heavier summer rains seen in August, December's precipitation contributes to a picturesque winter landscape, where snow and rain mingle, reinforcing the region's enchanting charm. Overall, December serves as a bridging month that elegantly balances the tail end of autumn's moisture with the onset of winter's chill.

December Precipitation Trends in Suomussalmi

The chart displays monthly precipitation patterns in Suomussalmi, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Suomussalmi, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4539464358747810883907366
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Suomussalmi

In Suomussalmi, Finland, December brings a notable shift as humidity peaks at a striking 100%, reflecting the cold embrace of winter. This increase contrasts with the gradual decline from January's 101%, where moisture levels begin at their highest, and flows through the subsequent months, dropping to a low of 79% in June. As winter sets in, humidity levels rebound sharply, rising from 96% in both October and November to complete the year's cycle on a frost-laden note. Overall, the data illustrates a clear seasonal rhythm, with humidity levels decreasing steadily through the warmer months before the winter months bring them back to their wintery zenith, underscoring the characteristic climate of this northern haven.

December Average Humidity in Suomussalmi

This chart illustrates the average monthly humidity levels in Suomussalmi, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Suomussalmi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec101%99%94%88%83%79%83%88%91%96%96%100%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Suomussalmi

In December, the UV Index in Suomussalmi remains low at 1, reflecting the winter season's characteristic lack of intense sunlight. With a burn time of approximately 45 minutes, residents and visitors can enjoy outdoor activities with minimal risk of overexposure, similar to the previous months of November and January. Overall, the trend shows a gradual increase in UV levels as the year progresses, peaking in the summer months of June and July at 6. However, as daylight wanes and temperatures drop, the index drops back to lower levels in winter, making it essential to remain mindful of skin protection even in the cooler months. For more detailed information on the UV Index throughout the year, visit Suomussalmi UV Index.

Maximum UV Index Levels in Suomussalmi for December

The chart shows the monthly maximum UV Index (UVI) for Suomussalmi in December, 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 December, the maximum UV index in Suomussalmi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112356643211
Data source: Suomussalmi December 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.

December Sunshine in Suomussalmi

In Suomussalmi, Finland, the contrast in sunshine hours throughout the year is striking, painting a vivid picture of seasonal change. While December bids farewell to daylight with a meager 11 hours of sunshine, the months that precede it offer a bright anticipation of spring. As winter approaches, November sees a sharp drop to 41 hours, hinting at the long, dark days ahead. The sunshine returns with vigor, as January emerges with just 28 hours, setting the stage for a gradual increase in light. This trend culminates in the vibrant spring and summer months when sunlight peaks, reaching an impressive 479 hours in July. Such fluctuations highlight the stark beauty of the Finnish seasons, where each month tells a unique story through the lens of sunlight.

Monthly Sunshine Duration in Suomussalmi: December Highlighted

The December sunshine duration represents the total number of hours Suomussalmi experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec28h118h251h342h421h467h479h351h227h108h41h11h
Data source: Suomussalmi December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Suomussalmi During December

In Suomussalmi, Finland, December brings a notable dip in the likelihood of sunny weather, with a mere 7% chance of sunshine. This decline follows a modest uptick in chances during the spring and early summer months, where the sun shines more brightly—rising to as high as 49% in July. As we transition from the vibrant colors of fall to the stark winter landscape, the chances of clear skies diminish sharply from 23% in September and October to even lower percentages in the late fall. Thus, December is characterized by its long, dark days, making the rare moments of sunshine all the more precious in this tranquil winter wonderland.

Percentage of Sunny Days in December in Suomussalmi

The chart illustrates the percentage of sunny days in Suomussalmi throughout the year, with December 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 Suomussalmi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec3%13%38%33%23%41%49%22%23%5%9%7%
Data source: Suomussalmi December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Suomussalmi in December

In Suomussalmi, Finland, the dwindling daylight of December is a stark reminder of the region's polar climate, where the sun graces the sky for a mere three hours each day. This month marks the culmination of a dramatic decline in daylight, beginning with the transition from the brief five hours in January, gradually increasing through February to a more hopeful eight hours by month’s end. As spring emerges, residents relish an increase in daylight, peaking in June with an astonishing 21 hours. However, as the year draws to a close, the diminishing light provides a unique atmosphere, painting the winter landscape in serene hues of twilight and inviting reflection during the longest nights of the year. Thus, the rhythm of daylight in Suomussalmi not only shapes the daily lives of its inhabitants but also creates a captivating seasonal narrative that resonates throughout the year.

Average Daylight Hours in Suomussalmi for December

The chart illustrates the variation in daylight duration in Suomussalmi throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec5h 10m8h 25m11h 49m15h 16m18h 48m21h 28m19h 55m16h 24m12h 58m9h 34m6h 11m3h 53m
Data source: Suomussalmi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Suomussalmi

As December arrives in Suomussalmi, Finland, the wind continues to whisper through the serene landscapes at an average speed of 3.2 m/s (7 mph). This consistent breeze mirrors the trends observed throughout the autumn months, maintaining a gentle yet brisk presence. Interestingly, while January and June both show the calmest winds of the year at 2.9 m/s (6 mph), the late fall and early winter months largely hover around the 3.0 to 3.7 m/s (7-8 mph) range, suggesting a subtle uptick in airflow as the season deepens. December's winds, although not the strongest, carry the crisp essence of winter, making it a perfect backdrop for the picturesque snowy scenery that envelops this charming Finnish village.

Average December Wind Speed in Suomussalmi

The chart displays monthly wind speed patterns in Suomussalmi, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.93.13.73.23.12.92.93.13.03.73.23.2 m/s
Data source: Suomussalmi December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Suomussalmi Compares to Other Months

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

December and January present markedly cold weather, though January takes the chill to a more extreme level. In December, temperatures range from a minimum of -22°C (-7°F) to an average of -6°C (22°F) and can reach a maximum of 3°C (37°F). Precipitation in December totals 66 mm (2.6 in) over 18 days, with humidity at a constant 100%. In contrast, January sees even lower temperatures, with a minimum of -33°C (-27°F) and an average of -9°C (16°F), while the maximum slightly increases to 4°C (40°F). Precipitation decreases to 45 mm (1.8 in) over 12 days, and humidity rises slightly to 101%. For more detailed weather information, you can visit Suomussalmi weather in January.

December and February present distinctly cold weather patterns, with December experiencing somewhat milder temperatures compared to February. In December, average temperatures hover around -6°C (22°F), with a minimum of -22°C (-7°F) and a maximum of 3°C (37°F). The month sees substantial precipitation, totaling 66 mm (2.6 in) over approximately 18 days, accompanied by high humidity at 100%. In contrast, February is colder, with an average temperature of -10°C (15°F), a minimum of -28°C (-19°F), and a maximum reaching 4°C (40°F). Precipitation drops significantly to 39 mm (1.5 in) over just 9 days, with humidity slightly lower at 99%. Overall, while both months are frigid, February is marked by deeper cold and less precipitation. For more insights, you can check Suomussalmi weather in February.

In December, Suomussalmi experiences a chillier climate with average temperatures hovering around -6°C (22°F) and a maximum of only 3°C (37°F). The month sees significant snowfall, with precipitation recorded on 18 days and a total of 66 mm (2.6 in). With humidity at a consistent 100%, the air feels particularly frigid.

By March, the weather begins to show signs of warming, with average temperatures reaching -5°C (23°F) and maximums rising to 10°C (51°F). Although the minimum temperature dips to -28°C (-19°F), precipitation is less frequent, occurring on only 12 days and amounting to 46 mm (1.8 in). The humidity also decreases to 94%, making March feel somewhat more tolerable than December. For more details on March weather, you can visit Suomussalmi weather in March.

In December, the weather in Suomussalmi is notably frigid, with temperatures ranging from a chilling -22°C (-7°F) to a maximum of only 3°C (37°F). The month experiences significant precipitation totaling 66 mm (2.6 in) over 18 days, coupled with a high humidity of 100%, creating a wintry landscape.

Conversely, April marks a transition towards milder conditions. The minimum temperature increases to -15°C (5°F), with average temperatures hovering around 0°C (33°F) and peaking at a pleasant 20°C (68°F). Precipitation decreases to 43 mm (1.7 in) across 10 days, and humidity drops to 88%, signaling the arrival of spring. For more detailed information about April weather, visit Suomussalmi weather in April.

In December, the weather is characterized by frigid temperatures, with lows dropping to -22°C (-7°F) and an average temperature around -6°C (22°F). The maximum temperature barely reaches above freezing at 3°C (37°F), accompanied by high humidity levels at 100%. Precipitation occurs on 18 days, totaling 66 mm (2.6 in), which often falls as snow during this cold month.

In contrast, May brings a dramatic shift in weather, with temperatures ranging from a minimum of -9°C (17°F) to a comfortable average of 6°C (44°F) and highs peaking at a warm 28°C (82°F). The humidity decreases to 83%, creating a more pleasant atmosphere, and precipitation occurs less frequently, with only 11 days of rain, accumulating to 58 mm (2.3 in). For more detailed insights, you can explore Suomussalmi weather in May.

December and June in Suomussalmi showcase stark contrasts in weather. In December, temperatures plunge to a minimum of -22°C (-7°F) and hover around an average of -6°C (22°F), with a maximum reaching just 3°C (37°F). The month is characterized by high humidity at 100% and a notable amount of precipitation (66 mm or 2.6 in) over 18 days. In contrast, June brings a dramatic shift, with temperatures ranging from a minimum of 0°C (31°F) to an average of 13°C (57°F) and peaking at a warm 30°C (86°F). The precipitation is slightly higher at 74 mm (2.9 in) but occurs over fewer days (13), and humidity is lower at 79%. For more details, you can visit Suomussalmi weather in June.

In December, the weather is characterized by frigid temperatures, with minimums plummeting to -22°C (-7°F) and an average around -6°C (22°F). The month sees frequent precipitation on 18 days, accumulating to 66 mm (2.6 in), accompanied by high humidity at 100%, creating a wintery atmosphere. In contrast, July brings warmth with temperatures ranging significantly higher, with average lows of 4°C (40°F) and highs reaching up to 30°C (86°F). Despite being the wettest month, July has fewer rainy days, totaling 11, and overall precipitation is marginally higher at 78 mm (3.1 in), with humidity at a comfortable 83%. For more insights on the warm weather expected during this month, check Suomussalmi weather in July.

December and August present two contrasting weather patterns. In December, temperatures plummet with minima reaching -22°C (-7°F) and averages around -6°C (22°F), peaking at just 3°C (37°F). This cold month is characterized by high humidity levels of 100% and frequent precipitation, totaling 66 mm (2.6 in) over 18 days. In stark contrast, August enjoys a milder climate, featuring minimum temperatures of 1°C (35°F) and an average of 13°C (56°F), with maximums soaring to 30°C (86°F). Though it receives more precipitation at 108 mm (4.2 in), it does so over a similar number of days (17), accompanied by slightly lower humidity at 87%. For a more detailed look at August weather, check out Suomussalmi weather in August.

December and September present contrasting weather patterns. While December boasts a chilling average temperature of -6°C (22°F), with minimums plunging to -22°C (-7°F), September enjoys a much milder climate, averaging 8°C (47°F) and peaking at 23°C (73°F). Precipitation is notable in both months, with December receiving 66 mm (2.6 in) over 18 days, compared to September's 83 mm (3.3 in) across 13 days. The humidity levels also illustrate the seasonal shift, as December maintains a high 100% humidity, while September's humidity sits at a slightly lower 91%. For more detailed information, you can check Suomussalmi weather in September.

In December, the weather in Suomussalmi becomes significantly colder, with temperatures ranging from a minimum of -22°C (-7°F) to a maximum of 3°C (37°F) and an average of -6°C (22°F). In contrast, October experiences milder conditions, featuring temperatures from a minimum of -11°C (13°F) to a maximum of 18°C (65°F) and an average of 3°C (37°F). While December sees a substantial 66 mm (2.6 in) of precipitation over 18 days, October has slightly more precipitation at 90 mm (3.5 in) across 16 days. Humidity remains high in both months, with December at 100% and October at 96%. For more details, check out Suomussalmi weather in October.

December weather in Suomussalmi is notably colder than November, with average temperatures dropping from -2°C (29°F) in November to -6°C (22°F) in December. While the minimum temperature remains similar, December sees a slight increase in precipitation, totaling 66 mm (2.6 in) over 18 days compared to 73 mm (2.9 in) over 15 days in November. Additionally, December's humidity reaches a peak of 100%, making the cold feel even more intense. For more detailed insights, you can check Suomussalmi weather in November.

Compare Suomussalmi's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Suomussalmi

December in Suomussalmi marks a distinct transition into the depths of winter, presenting a significant departure from the milder months that precede it. With temperatures dropping into the chill of sub-zero averages and an increase in precipitation, the landscape transforms into a serene yet frosty wonderland. The high humidity, consistently reaching 100%, adds a heavy veil of moisture to the crisp winter air, making each breath feel especially invigorating. While December sees more days of precipitation than some other months, it also sets the stage for the magical charm of winter, inviting residents and visitors alike to embrace the season's beauty. To learn more about the overall climate patterns in this captivating region, explore Suomussalmi Climate.