December Weather in Ustka, Poland

Last updated: August 27, 2025

December in Ustka, Poland is marked by a chilly maritime climate, with maximum temperatures reaching a modest 10°C (51°F) and averages lingering around 3°C (38°F). As winter settles in, the mercury can dip to a brisk -7°C (20°F), inviting cozy indoor activities. This month also brings a fair amount of moisture, with an average precipitation of 71 mm (2.8 in) spread over 15 days, creating a damp ambiance. Humidity levels hover at a significant 85%, adding to the wintry feel that blankets this picturesque seaside town. Visitors are encouraged to bundle up and relish the quaint charm of Ustka during this serene winter month.

December Temperature in Ustka

In Ustka, Poland, December marks a chill in the air as temperatures dip significantly, with minimums reaching -7°C (20°F) while highs struggle to reach 10°C (51°F). This month showcases a noticeable shift from the milder autumn, as the average temperature settles around 3°C (38°F). The transition towards winter becomes evident not only through the drop in temperatures but also in the stark contrast from the preceding months. December's conditions hint at the cold ahead, yet they still provide a crisp beauty to the scenery, inviting those who embrace the season's charm. As the year comes to a close, Ustka wraps itself in a wintry embrace, setting the stage for cozy gatherings and the promise of snow.

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

The chart illustrates December temperature patterns in Ustka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ustka, 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).
JanFebMarAprMayJunJulAugSepOctNovDec363538445263656660534538
Data source: Temperature data for Ustka 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 Ustka

December in Ustka, Poland, brings a notable 71 mm (2.8 in) of precipitation over the month, marking it as a relatively wet time of year. With precipitation occurring on 15 days, the landscape transforms into a tapestry of winter moods, reminiscent of the preceding month, November, which recorded 76 mm (3.0 in). Interestingly, this slight dip in rainfall signals a trend of decreasing precipitation as the colder months approach, following the wetter autumn months of October—where a notable 115 mm (4.5 in) fell, prompting brisk sea breezes and the occasional winter storm. As the year closes, Ustka embraces the interplay between rainfall and seasonal chill, setting the stage for a serene coastal winter.

December Precipitation Trends in Ustka

The chart displays monthly precipitation patterns in Ustka, 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 Ustka, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec66555834514410367901157671
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ustka

In Ustka, Poland, December marks a slight dip in humidity, settling at 85%, which aligns closely with the trend of decreasing humidity observed as winter approaches. The month begins the transition from the higher humidity levels experienced during the autumn, particularly November's 86%, and maintains the moderate levels characteristic of the fall, with winter months generally seeing humidity around the mid-80s. This gradual decline contrasts with the consistently high humidity throughout the earlier months of the year, which hovered around 87%. Overall, December's humidity reflects a seasonal shift that hints at colder, crisper days ahead while still retaining a softness in the air typical of this coastal region.

December Average Humidity in Ustka

This chart illustrates the average monthly humidity levels in Ustka, 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 Ustka is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%87%85%81%81%81%80%81%84%86%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ustka

In December, the UV Index in Ustka, Poland, remains low at 1, mirroring the trend seen in the previous month of November. With minimal exposure to harmful UV rays, residents and visitors can enjoy outdoor activities without the worry of sunburn, as the burn time extends to 45 minutes. This consistency in low UV levels typically characterizes the winter months, providing a stark contrast to the peak summer values that can soar to 7 in July and June. This time of year is ideal for cozy indoor pursuits, but for those venturing outside, minimal sun protection is advised. To learn more about Ustka's UV trends throughout the year, check out Ustka UV Index.

Maximum UV Index Levels in Ustka for December

The chart shows the monthly maximum UV Index (UVI) for Ustka 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 Ustka typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124567765311
Data source: Ustka 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 Ustka

In Ustka, Poland, December marks the culmination of a year characterized by a steady increase in sunshine hours. The month may begin with just 118 hours of radiant sunlight, but this is a stark contrast to the lengthy sunlight enjoyed in the vibrant summer months, reaching a peak of 440 hours in June. As the seasons transition, the gradual decline from the 424 hours in May to the 161 hours in November reveals the waning of daylight as winter descends. Despite December's brevity, it serves as a reminder of the abundant sunshine that filled the earlier months, especially with spring and summer showcasing lively periods of light that fuel the beauty of Ustka’s coastal charm. As the year closes, the low sunshine hours set the stage for the cozy, reflective winter nights that define the season.

Monthly Sunshine Duration in Ustka: December Highlighted

The December sunshine duration represents the total number of hours Ustka 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.
JanFebMarAprMayJunJulAugSepOctNovDec100h196h267h363h424h440h439h398h302h239h161h118h
Data source: Ustka December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ustka During December

In Ustka, Poland, the likelihood of enjoying sunny weather in December is relatively low at 20%. This figure reflects the trend of declining sunlight as the year progresses; the chances diminish particularly in the later months, as seen in November with only 15%. While December's sunshine probability is slightly better than November's, it starkly contrasts with the peak of summer in June, where residents bask under 61% sunny days. As winter settles in, the transition from longer, brighter days to shorter, cloudier ones becomes evident, making December a time for cozy indoor activities rather than soaking up the sun.

Percentage of Sunny Days in December in Ustka

The chart illustrates the percentage of sunny days in Ustka 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 Ustka experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%31%33%44%43%61%40%33%33%30%15%20%
Data source: Ustka December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ustka in December

In Ustka, Poland, December heralds the return of shorter days, with daylight lasting around 7 hours—the same as at the beginning of the year in January. This pattern underscores a gradual decline from the 17 hours of sunlight experienced in June, reflecting the natural ebb and flow of seasonal light. As the months progress from vibrant summer to the chilly depths of winter, daylight diminishes steadily, with the most pronounced drop occurring from October's 10 hours to November's 8 hours. December's fleeting daylight serves as a reminder of the enchanting cycle of seasons, inviting residents to embrace cozy evenings and the beauty of festive winter nights.

Average Daylight Hours in Ustka for December

The chart illustrates the variation in daylight duration in Ustka throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 55m9h 43m11h 53m14h 7m16h 5m17h 9m16h 35m14h 48m12h 39m10h 26m8h 26m7h 20m
Data source: Ustka daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Ustka

As December sets in, Ustka, Poland experiences a notable increase in wind activity, with average speeds rising to 6.0 m/s (13 mph). This marks a peak for the year, following a trend of gradual intensification during the colder months. While the earlier part of the year displayed relatively consistent wind speeds around the 5.2 to 5.8 m/s range, December signals a shift, pulling winds in from the Baltic Sea with greater vigor. The transition from the milder summer months, where wind speeds dipped to around 4.0 m/s (9 mph) in June and July, showcases the dynamic weather patterns Ustka experiences. With the start of winter, the invigorating December winds offer a stark reminder of the season's approach, enhancing the coastal charm of this picturesque Polish town.

Average December Wind Speed in Ustka

The chart displays monthly wind speed patterns in Ustka, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.45.25.25.34.64.04.25.14.65.85.86.0 m/s
Data source: Ustka December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Ustka Compares to Other Months

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

In comparing the weather of December and January, we observe a slight decrease in temperatures as the new year begins. December typically experiences a minimum temperature of -7°C (20°F), while January sees a drop to -12°C (11°F). The average temperatures remain fairly close, with December averaging 3°C (38°F) and January slightly lower at 2°C (36°F). Precipitation levels are also similar, with December receiving about 71 mm (2.8 in) over 15 days and January slightly less at 66 mm (2.6 in) across 14 days. Both months maintain high humidity levels, with December at 85% and January at 87%. For more detailed information, you can check out Ustka weather in January.

December and February showcase distinct winter characteristics in terms of weather. In December, temperatures range from a chilly minimum of -7°C (20°F) to a mild maximum of 10°C (51°F), with an average temperature of 3°C (38°F). The month sees about 71 mm (2.8 in) of precipitation over 15 days, and humidity hovers around 85%. In contrast, February experiences even colder conditions, with minimum temperatures dropping to -12°C (11°F) and an average of 2°C (36°F), though the maximum reaches a warmer 14°C (57°F). The precipitation in February is less, at 55 mm (2.2 in) over 12 days, and the humidity increases slightly to 87%. For more detailed insights into February weather, visit Ustka weather in February.

In December, temperatures range from a chilly -7°C (20°F) to a mild 10°C (51°F), with an average of around 3°C (38°F). The month experiences considerable precipitation of 71 mm (2.8 in) over approximately 15 days, accompanied by high humidity at 85%.

In contrast, March sees a slightly wider temperature range, with minimums dropping to -14°C (7°F) and maximums reaching up to 13°C (56°F), although the average remains consistent at 3°C (38°F). Precipitation in March is somewhat lower at 58 mm (2.3 in) over 12 days, with a slight increase in humidity to 87%.

For more detailed insights, you can visit Ustka weather in March.

December weather is characterized by cold temperatures, with an average around 3°C (38°F) and a maximum reaching only 10°C (51°F). The month experiences significant precipitation, totaling 71 mm (2.8 in) over 15 days, and a consistent humidity level of 85%. In contrast, April offers a more temperate climate, with temperatures ranging from a minimum of -3°C (27°F) to a pleasant maximum of 20°C (69°F), featuring an average of 7°C (45°F). The month also sees considerably less rainfall, accumulating only 34 mm (1.3 in) across 7 days, while maintaining the same humidity level of 85%. For more details, you can check out Ustka weather in April.

In December, the weather is quite chilly, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 10°C (51°F), averaging around 3°C (38°F). The month experiences significant precipitation, totaling 71 mm (2.8 in), over 15 days, alongside high humidity, averaging 85%. In contrast, May offers a more pleasant climate, with temperatures starting from 1°C (35°F) and peaking at 24°C (76°F), averaging 11°C (53°F). The precipitation is lower at 51 mm (2.0 in) across 11 days, and humidity remains relatively high at 81%. This stark difference highlights the transition from the cold and wet winter to the milder and drier spring. For more details on the weather conditions in May, visit Ustka weather in May.

December weather in Ustka is characterized by colder temperatures, with a minimum of -7°C (20°F) and an average of 3°C (38°F), reaching a maximum of 10°C (51°F). The month sees considerable precipitation, averaging 71 mm (2.8 in) over 15 days, and the air is quite humid at 85%. In contrast, June brings a much milder climate, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 30°C (87°F), averaging 17°C (63°F). Precipitation decreases to 44 mm (1.7 in) over just 8 days, and humidity also drops slightly to 81%. For a detailed comparison of weather in June, visit Ustka weather in June.

December and July present starkly contrasting weather conditions. In December, temperatures can drop as low as -7°C (20°F), with an average of around 3°C (38°F) and highs reaching only 10°C (51°F). This chilly month experiences significant precipitation, totaling 71 mm (2.8 in) over 15 days, and the humidity remains high at 85%, contributing to a gloomy atmosphere. In contrast, July boasts much milder temperatures, with a minimum of 10°C (50°F), an average of 18°C (65°F), and maximums soaring to 30°C (86°F). Although July has higher total precipitation at 103 mm (4.1 in) over the same number of days, the humidity is slightly lower at 81%, making for a more comfortable and vibrant summer experience. For more specifics on July weather, check out Ustka weather in July.

December and August offer markedly different weather experiences. In December, temperatures dip significantly, with a minimum of -7°C (20°F) and an average of 3°C (38°F), while the maximum reaches only 10°C (51°F). The month is relatively humid, with an 85% humidity level and around 71 mm (2.8 in) of precipitation spread over 15 days. In contrast, August presents a much warmer climate, with temperatures ranging from a minimum of 10°C (51°F) to a comfortable maximum of 31°C (87°F), averaging 19°C (66°F). Although August sees slightly less precipitation at 67 mm (2.6 in) over 12 days, humidity remains high at 80%. For more details, you can explore Ustka weather in August.

In December, the weather in Ustka tends to be much colder, with temperatures ranging from a minimum of -7°C (20°F) to an average of 3°C (38°F) and a maximum of 10°C (51°F). The month experiences significant precipitation, totaling 71 mm (2.8 in) over about 15 days, accompanied by high humidity levels of 85%. In contrast, September offers a much milder climate, with temperatures ranging from a minimum of 8°C (46°F) to an average of 15°C (60°F) and reaching up to 28°C (83°F) at its warmest. This month sees slightly more precipitation at 90 mm (3.5 in) over 17 days, with humidity at a lower 81%. For a detailed look at September weather in Ustka, you can visit Ustka weather in September.

In comparing the weather between October and December, we see notable differences in temperature and precipitation patterns. December typically experiences colder temperatures, ranging from a minimum of -7°C (20°F) to an average of 3°C (38°F), while October is milder, with temperatures varying from a minimum of 3°C (38°F) to an average of 11°C (53°F), peaking at a maximum of 21°C (70°F). On the precipitation front, October has higher rainfall, totaling 115 mm (4.5 in) over 18 days, compared to December's 71 mm (2.8 in) over 15 days. Humidity levels remain quite similar, with December at 85% and October at 84%. For a more comprehensive look at October weather specifics, you can visit Ustka weather in October.

In comparing the weather patterns of December and November, notable differences emerge. December experiences lower temperatures, with a minimum of -7°C (20°F) and an average of 3°C (38°F), in contrast to November's milder conditions, which see a minimum of -2°C (28°F) and an average of 7°C (45°F). Additionally, while precipitation levels are similar—71 mm (2.8 in) in December versus 76 mm (3.0 in) in November—December often feels wetter with its persistent rain over 15 days, just like November. Humidity remains quite high during both months, at 85% in December and 86% in November, adding to the overall chill. For more insights on the climate during November, you can visit Ustka weather in November.

Compare Ustka's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Ustka

As December unfolds in Ustka, the weather takes on a distinctly chilly character, differentiating itself from other months with its brisk temperatures and increased precipitation. With humidity levels soaring to 85% and around fifteen days of rainfall, the month often feels damp and frosty. Unlike the milder months, December's average temperature hovers around just 3°C, reminding residents and visitors alike that winter is firmly setting in. For a deeper insight into how this maritime town's climate evolves throughout the year, visit Ustka Climate.