December Weather in Smolensk, Russian Federation

Last updated: August 27, 2025

December in Smolensk, Russian Federation presents a chill that permeates the atmosphere, with maximum temperatures reaching a mere 9°C (48°F) and the average settling at a frosty -2°C (28°F). The month can witness lows plummeting to -17°C (2°F), making warm attire a necessity. With 67 mm (2.6 in) of precipitation spread over 15 days, the city often dons a veil of snow or rain, enhancing its wintry charm. Coupled with an impressively high humidity level of 95%, December in Smolensk embodies the quintessential cold season, offering a serene yet invigorating backdrop for both residents and visitors alike.

December Temperature in Smolensk

In December, Smolensk, Russian Federation, experiences a sharp drop in temperatures as winter fully sets in. With minimums dipping to -17°C (2°F) and an average temperature of around -2°C (28°F), the city feels the chill of the season. Despite this cold, daytime highs can reach a relatively mild 9°C (48°F), offering brief respite from the biting frost. This month marks a transition from the more moderate temperatures of autumn, as both minimums and averages reflect a significant decrease compared to November. The trend indicates that as the days grow shorter and winter deepens, residents and visitors alike should prepare for the frosty embrace of Decembral weather.

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

The chart illustrates December temperature patterns in Smolensk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Smolensk, 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).
JanFebMarAprMayJunJulAugSepOctNovDec242532435463646354453528
Data source: Temperature data for Smolensk 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.

December Precipitation in Smolensk

In Smolensk, Russian Federation, December marks a shift into the winter season with precipitation levels reaching 67 mm (2.6 in) over approximately 15 days of the month. This amount reflects a notable increase compared to previous months, illustrating a trend where late autumn sees a gradual rise in rainfall leading into winter. December's precipitation is higher than November's 49 mm (1.9 in) despite both months having a similar number of rainy days. As winter sets in, the persistent moisture combined with shorter daylight hours creates a unique atmosphere in Smolensk, making it a month where the city's landscape transforms under a blanket of frost, influenced by these late-year rains.

December Precipitation Trends in Smolensk

The chart displays monthly precipitation patterns in Smolensk, 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 Smolensk, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4443434771731207264644967
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Smolensk

December in Smolensk, Russian Federation, wraps up the year with a high humidity level of 95%, reflecting a consistent trend of elevated moisture throughout the colder months. Following a gradual decline from the peak of 96% in January, the humidity remains notably high during the winter, with slight decreases observed as the seasons shift towards spring. November’s 94% humidity precedes December’s levels, maintaining an atmospheric richness that is characteristic of this region. As the cold weather persists into the first month of the year, the humidity remains elevated, suggesting a continuation of moist air that significantly influences the winter climate in Smolensk.

December Average Humidity in Smolensk

This chart illustrates the average monthly humidity levels in Smolensk, 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 Smolensk is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%92%90%84%71%76%79%78%85%92%94%95%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Smolensk

As winter sets in Smolensk, the December UV Index registers a low level of 1, suggesting minimal sun exposure risk. This month follows a trend of declining UV radiation that began in the warmer months, where the index soared to a significant 8 in June. The gradual decrease in UV levels from moderate to low categories indicates a clear seasonal shift. With a burn time of 45 minutes, residents can enjoy outdoor activities with little concern for sunburn. This low UV period complements the previous months of increasing moderation, reminding us that winter time brings not just colder temperatures, but also a protective shield from the sun’s harsher rays. For those looking to stay informed about UV levels throughout the year, check out Smolensk UV Index.

Maximum UV Index Levels in Smolensk for December

The chart shows the monthly maximum UV Index (UVI) for Smolensk 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 Smolensk typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124568775321
Data source: Smolensk 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 Smolensk

In Smolensk, the December sunshine pales in comparison to the vibrant months preceding it, offering only about 55 hours of daylight. This decline marks the close of a year characterized by an impressive increase in sunshine hours throughout the spring and summer, peaking at 427 hours in June. After basking in the warmth of longer days, residents experience a gradual tapering of sunlight as autumn sets in, culminating in November's mere 103 hours. December’s brief rays can feel elusive, highlighting the stark contrast to the sun-drenched days of May and June. Despite this seasonal shift, the fleeting moments of sunshine in December add a touch of magic to the winter landscape, reminding us of nature's cyclical beauty.

Monthly Sunshine Duration in Smolensk: December Highlighted

The December sunshine duration represents the total number of hours Smolensk 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.
JanFebMarAprMayJunJulAugSepOctNovDec53h134h244h325h400h427h414h390h287h203h103h55h
Data source: Smolensk December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Smolensk During December

In the cold embrace of December, Smolensk sees a mere 6% chance of sunny weather, marking it as one of the least likely months for sun to break through the clouds. As the year progresses from January's bleak 4%, the likelihood of sunshine gradually improves, peaking in the vibrant months of June and July with 59% and 55% respectively. However, as autumn gives way to winter, the chance plummets again, highlighting a clear trend: sunny days become increasingly rare as we shift toward the year's end. This suggests that if you're yearning for sunlight during December in Smolensk, it's wise to manage expectations while embracing the unique charm of winter's gray skies.

Percentage of Sunny Days in December in Smolensk

The chart illustrates the percentage of sunny days in Smolensk 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 Smolensk experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec4%9%33%34%33%59%55%32%22%40%11%6%
Data source: Smolensk December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Smolensk in December

In Smolensk, Russian Federation, the daylight duration paints a vivid picture of the seasonal transition throughout the year. December, closing the year, offers only about 7 hours of sunlight, mirroring January's gloominess. As the year progresses from the depths of winter to the brightness of spring, daylight gradually stretches from a mere 7 hours in January to a flourishing 16 hours by May. This trend reaches its peak in June with a nearly 17-hour day, heralding the height of summer. However, as autumn sets in, daylight diminishes rapidly, shrinking back down to only 8 hours in November, before receding to the winter solstice's brief stretches. Such cyclical variations reflect the rhythm of nature in this historical city, where the change in seasons deeply influences daily life and culture.

Average Daylight Hours in Smolensk for December

The chart illustrates the variation in daylight duration in Smolensk throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 52m9h 41m11h 53m14h 8m16h 8m17h 13m16h 38m14h 50m12h 39m10h 25m8h 23m7h 17m
Data source: Smolensk daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Smolensk

As December arrives in Smolensk, the winds start to pick up, reaching an average speed of 4.2 m/s (9 mph). This slight increase compared to the previous months reflects a trend of higher wind speeds leading into winter. Notably, November had an average wind speed of 4.5 m/s (10 mph), the highest in the year, suggesting that winter's approach brings a briskness to the air. In contrast, the summer months saw much calmer conditions, with July recording a mere 2.5 m/s (6 mph), offering a stark contrast to the energizing gusts that define December. The overall pattern indicates a seasonal shift where cooler months deliver more invigorating breezes, inviting both residents and visitors to embrace the crispness of Smolensk's winter.

Average December Wind Speed in Smolensk

The chart displays monthly wind speed patterns in Smolensk, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.54.13.83.63.82.62.52.93.93.94.54.2 m/s
Data source: Smolensk December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Smolensk Compares to Other Months

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

December and January both bring cold temperatures, but January tends to be notably chillier. In December, temperatures range from a minimum of -17°C (2°F) to a maximum of 9°C (48°F), while January sees even lower temperatures, with minimums plummeting to -29°C (-19°F) and maximums only reaching 4°C (40°F). Additionally, December experiences more precipitation, totaling 67 mm (2.6 in) over 15 days, compared to January's 44 mm (1.7 in) over 12 days. The humidity remains high in both months, with December at 95% and January slightly higher at 96%. For more detailed insights into January weather, you can check Smolensk weather in January.

In December, the weather is relatively milder, with average temperatures ranging from a minimum of -17°C (2°F) to a maximum of 9°C (48°F). The month experiences significant precipitation, totaling 67 mm (2.6 in) over approximately 15 days, accompanied by high humidity levels at 95%.

In contrast, February is colder, with average temperatures dropping to a minimum of -24°C (-11°F) and a maximum of 7°C (45°F). Precipitation in February is less, amounting to 43 mm (1.7 in) over 11 days, and humidity decreases slightly to 92%. For a more detailed look at weather patterns, you can check Smolensk weather in February.

December and March present notably different weather conditions. In December, temperatures typically range from a chilling -17°C (2°F) at night to a milder max of 9°C (48°F) during the day, with an average temperature of -2°C (28°F). The month sees considerable precipitation, totaling 67 mm (2.6 in) over approximately 15 days, coupled with high humidity at 95%.

In contrast, March enjoys slightly warmer temperatures, with nighttime lows of -18°C (0°F) and daytime highs reaching 17°C (62°F), resulting in a more comfortable average of 0°C (32°F). Precipitation decreases to 43 mm (1.7 in) over about 12 days, and humidity drops to 90%. For more detailed information, check out Smolensk weather in March.

December and April in Smolensk present a stark contrast in weather conditions. December is characterized by frigid temperatures, with minimums dropping to -17°C (2°F) and an average of -2°C (28°F), while April sees a noticeable increase with temperatures ranging from a minimum of -9°C (17°F) and averaging 6°C (43°F) that can peak at 23°C (74°F). Additionally, December experiences higher humidity at 95% and more precipitation over 15 days, totaling 67 mm (2.6 in), compared to April’s 84% humidity and lighter precipitation of 47 mm (1.8 in) over 12 days. For more information, you can check Smolensk weather in April.

December and May showcase a stark contrast in weather conditions. In December, temperatures can plummet to a minimum of -17°C (2°F) and average around -2°C (28°F), while the maximum rarely exceeds 9°C (48°F). The month is characterized by high humidity levels at 95% and consistent precipitation, with rain or snow occurring on 15 days, totaling 67 mm (2.6 inches). In contrast, May ushers in milder temperatures, with a minimum of -3°C (28°F) and an average of 12°C (54°F), peaking at a warm 28°C (83°F). Although May sees slightly more precipitation at 71 mm (2.8 inches), it occurs over fewer days (12 days), and humidity levels drop to a more comfortable 71%. For a detailed look at what to expect in May, visit Smolensk weather in May.

When comparing the weather in December and June, there is a stark contrast in temperatures and conditions. December experiences extremely cold temperatures, with a minimum of -17°C (2°F) and an average around -2°C (28°F), while June brings much milder weather, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 35°C (95°F) and an average of 17°C (64°F). Precipitation levels are somewhat similar, with December receiving 67 mm (2.6 in) over 15 days and June getting 73 mm (2.9 in) across 12 days. Additionally, December's humidity is notably higher at 95%, in stark contrast to June’s more comfortable 76%. For a detailed look at the weather specifics for June, you can check Smolensk weather in June.

December and July present stark contrasts in weather conditions. In December, temperatures can plummet to a minimum of -17°C (2°F), with an average of -2°C (28°F) and a maximum of 9°C (48°F). The month is characterized by high humidity at 95% and receives about 67 mm (2.6 in) of precipitation over approximately 15 days. In contrast, July boasts a much milder climate, with temperatures ranging from a minimum of 6°C (43°F) to a high of 32°C (91°F) and an average of 18°C (65°F). While July also experiences precipitation on 15 days, it totals 120 mm (4.7 in) with lower humidity at 79%. For more details, explore Smolensk weather in July.

December and August present strikingly different weather patterns. In December, temperatures can plummet to a minimum of -17°C (2°F) with an average of -2°C (28°F) and a maximum of 9°C (48°F), creating a frigid atmosphere. This month experiences high humidity at 95% and sees precipitation on about 15 days, accumulating to 67 mm (2.6 in). In stark contrast, August warms up with minimum temperatures of 4°C (40°F) and an inviting average of 17°C (63°F), reaching highs of 30°C (86°F). This summer month has slightly more precipitation at 72 mm (2.8 in) but over a fewer number of days, just 11, and the humidity is lower at 78%. For more details on the summer conditions, you can check Smolensk weather in August.

The weather in December is notably colder than in September, with temperatures ranging from a frigid -17°C (2°F) at night to a maximum of 9°C (48°F) during the day, while September enjoys milder conditions with temperatures fluctuating between -3°C (28°F) and a warm 28°C (82°F). Precipitation levels are similar, with December receiving about 67 mm (2.6 in) over 15 days and September just slightly lower at 64 mm (2.5 in) over 10 days. Additionally, December’s humidity is considerably higher at 95%, compared to September’s 85%. For more details, you can check Smolensk weather in September.

December presents a stark contrast to October, with significantly colder temperatures and increased humidity. While October's average temperature hovers around 7°C (45°F), December sees an average of -2°C (28°F), with nighttime lows plunging to -17°C (2°F). Precipitation is similarly notable, with December experiencing slightly more, at 67 mm over 15 days compared to October's 64 mm across 12 days. Additionally, December's humidity is higher at 95%, compared to October's 92%, contributing to a chillier atmosphere. For more detailed information on the weather during October, you can visit Smolensk weather in October.

When comparing the weather in December and November, December tends to be colder overall, with minimum temperatures dropping to -17°C (2°F) compared to November's minimum of -14°C (6°F). The average temperature in December is -2°C (28°F), which is notably lower than November's average of 1°C (35°F). Additionally, December experiences more precipitation at 67 mm (2.6 in) over 15 days, while November sees 49 mm (1.9 in) on 11 days. Humidity remains quite high in both months, with December at 95% and November at 94%. For more detailed information on November weather, visit Smolensk weather in November.

Compare Smolensk's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Smolensk

As December envelops Smolensk, the weather transforms dramatically compared to previous months, plunging into a chill that makes winter unmistakable. The biting cold brings an average temperature well below freezing, often dipping to frigid lows that could surprise even the hardiest residents. With frequent precipitation—spanning around 15 days—this month can feel particularly damp, as humidity levels soar to a staggering 95%, amplifying the cold and creating a penetrating chill. Overall, December marks a stark transition into full winter, aligning with the robust climate variations typical of the region. For a deeper understanding of the changing weather patterns throughout the year, explore Smolensk Climate.