December Weather in Marstal, Denmark

Last updated: October 30, 2025

December in Marstal, Denmark brings a chill in the air, with average temperatures hovering around 5°C (41°F). The mercury can dip as low as -1°C (30°F), while the maximum often reaches 10°C (50°F), showcasing the month’s variability. This winter month is characterized by a significant amount of precipitation, totaling 84 mm (3.3 in) over 17 days, contributing to the island's serene yet damp atmosphere. With humidity levels peaking at 88%, residents and visitors alike can expect a cozy, if somewhat soggy, experience as the festive season unfolds in this charming Danish town.

December Temperature in Marstal

As December sweeps into Marstal, Denmark, the temperatures begin to dip noticeably, heralding the onset of winter. With a minimum of -1°C (30°F), the month starts off briskly, while the average temperature hovers around a cool 5°C (41°F). Daytime highs struggle to reach 10°C (50°F), reflecting a significant drop compared to the milder autumn months. This chill signals a shift in the seasons, as the stark contrast to the preceding months becomes evident. Snow may dust the landscape, and cozy indoor gatherings become the norm, inviting a sense of warmth amid the winter chill. Overall, December in Marstal encapsulates the tranquil beauty of winter, with its crisp air and soothing atmosphere.

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

The chart illustrates December temperature patterns in Marstal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marstal, December typically has an average temperature of 5°C (41°F), with highs reaching up to 10°C (50°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec383739455262646560544741
Data source: Temperature data for Marstal 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 Marstal

In Marstal, Denmark, December marks a significant uptick in precipitation, with 84 mm (3.3 in) recorded, making it one of the wetter months alongside October. A notable trend emerges as December experiences 17 days of rainfall, equaling the highest count for the year, a reflection of late autumn's transition into winter. This consistent rainfall contributes to an overall pattern where the colder months—from October through December—see increased precipitation compared to the spring and early summer months. The relatively high precipitation levels during this time are essential for the region's ecosystem, ensuring that the landscape remains vibrant even as temperatures drop.

December Precipitation Trends in Marstal

The chart displays monthly precipitation patterns in Marstal, 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 Marstal, December typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec7367693659557283721087284
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Marstal

In Marstal, Denmark, December marks a subtle transition in humidity as it settles at 88%, maintaining a level reminiscent of the preceding months. This figure reflects a slight dip from November's 89%, indicating a trend of gradual fluctuations as the year winds down. Throughout the colder months, humidity remains high, with January peaking at 90%. Interestingly, the summer months consistently showcase lower humidity at 77%, suggesting a comfortable reprieve. As the year progresses from the dry warmth of summer into the crispness of late autumn, Marstal's humidity trends reveal an enduring maritime influence, creating an atmosphere that is both refreshing and invigorating.

December Average Humidity in Marstal

This chart illustrates the average monthly humidity levels in Marstal, 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 Marstal is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%88%85%80%77%77%77%84%87%89%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Marstal

In Marstal, Denmark, the UV Index experiences a notable decline as the year progresses towards winter. Starting with a low index of 1 in December, residents can bask in the sun for a generous 45 minutes without worry. This aligns with the trend throughout the winter months, where UV exposure remains minimal, ensuring that sunburn is less of a concern. In contrast, the summer months of June and July see a sharp rise, reaching a peak of 8 and 7 respectively, classified as very high and high exposure categories. Overall, this seasonal pattern highlights the importance of adjusting sun safety practices as the UV Index fluctuates. For more detailed information, check out the Marstal UV Index.

Maximum UV Index Levels in Marstal for December

The chart shows the monthly maximum UV Index (UVI) for Marstal 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 Marstal typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123568765321
Data source: Marstal 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 Marstal

In December, Marstal, Denmark, experiences a gentle retreat into winter, with 118 hours of sunshine gracing the month. This marks a notable decrease from the vibrant autumn days of 321 hours in September and 250 hours in October. As the year draws to a close, the trend shows a gradual decline in sunlight, especially evident in the transition from the longer summer days, peaking at 440 hours in July. Despite the chilly weather, December's low sunlight serves as a reminder of the stark beauty of the season, inviting residents and visitors alike to reflect on the serenity and charm that the dark months bestow upon this coastal town.

Monthly Sunshine Duration in Marstal: December Highlighted

The December sunshine duration represents the total number of hours Marstal 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.
JanFebMarAprMayJunJulAugSepOctNovDec101h186h257h367h420h434h440h403h321h250h159h118h
Data source: Marstal December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Marstal During December

In December, the chance of enjoying sunny weather in Marstal, Denmark, stands at 22%, a modest uptick from November's 16% but still reflective of the region's generally overcast winter climate. As the year progresses, there’s a notable trend of increasing sunshine—beginning at a low of 17% in January, climbing steadily to 53% by April, and then fluctuating through the warmer months before dipping again in late autumn. December's numbers suggest a glimpse of light amidst the darkness, hinting at the slow return of brighter skies as winter unfolds. Although not abundant, these sunny moments can offer a refreshing break during the season's chill.

Percentage of Sunny Days in December in Marstal

The chart illustrates the percentage of sunny days in Marstal 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 Marstal experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%24%39%53%29%38%33%38%30%29%16%22%
Data source: Marstal December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Marstal in December

In Marstal, Denmark, the daylight duration undergoes a remarkable transformation throughout the year, beautifully illustrating the seasonal shift. As the year transitions from the deep winter months of December and January, where daylight hovers around 7 hours, a gradual increase begins in February, offering 9 hours of sunlight. This upward trend accelerates during the spring months, peaking in June with an impressive 17 hours of daylight, creating long, vibrant days. However, as summer fades into autumn, the daylight starts to dwindle once again, with July featuring 16 hours before gently tapering to 10 hours by October. Ultimately, December circles back to its wintry charm, with daylight returning to 7 hours, reminding us of the cyclical dance of light and dark in this picturesque seaside town.

Average Daylight Hours in Marstal for December

The chart illustrates the variation in daylight duration in Marstal 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: Marstal daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Marstal

As December settles over Marstal, Denmark, the average wind speed reaches 7.4 m/s (16 mph), weaving a brisk tapestry of chilly gusts that herald the heart of winter. This maintains a consistent trend seen throughout the year, where wind speeds tend to peak during the fall and early winter months. Notably, October also recorded a high of 7.5 m/s (17 mph), suggesting that as temperatures drop, the winds only seem to strengthen, invigorating the coastal landscape. Compared to the summer lull, where June dips to a gentle 4.7 m/s (11 mph), December’s gusty embrace underscores the dynamic shifts in Marstal's maritime climate, inviting both thrill-seekers and contemplative souls to experience the invigorating charm of winter winds.

Average December Wind Speed in Marstal

The chart displays monthly wind speed patterns in Marstal, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7.27.46.26.36.14.75.86.55.97.56.87.4 m/s
Data source: Marstal December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Marstal Compares to Other Months

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

December and January exhibit contrasting weather patterns despite being consecutive months. In December, temperatures range from a minimum of -1°C (30°F) to a maximum of 10°C (50°F), with an average of 5°C (41°F). The month experiences considerable precipitation at 84 mm (3.3 in) over 17 days, coupled with high humidity at 88%. In comparison, January sees a dip in the minimum temperature to -8°C (17°F) while maintaining a similar maximum of 10°C (51°F) and an average of 3°C (38°F). Precipitation decreases slightly to 73 mm (2.9 in) across 14 days, accompanied by a modest increase in humidity to 90%. For more detailed insights on January weather, visit Marstal weather in January.

December and February present interesting contrasts in weather. In December, temperatures range from a chilly -1°C (30°F) at their lowest to a mild average of 5°C (41°F), reaching a maximum of 10°C (50°F). The month experiences substantial precipitation, totaling 84 mm (3.3 in) over 17 days, alongside high humidity at 88%. In comparison, February sees a slight drop in the minimum temperature to -6°C (22°F) with an average of 3°C (38°F) and a high of 11°C (52°F). Precipitation decreases to 67 mm (2.6 in) over 13 days, while humidity remains comparable at 89%. For a more detailed look at February conditions, check out Marstal weather in February.

In December, temperatures range from a minimum of -1°C (30°F) to a maximum of 10°C (50°F), with an average of 5°C (41°F). The month is quite wet, experiencing 84 mm (3.3 in) of precipitation over 17 days, all while maintaining a high humidity level of 88%. In contrast, March sees slightly colder temperatures, with a minimum of -6°C (22°F) and a maximum of 11°C (51°F), resulting in an average of 4°C (40°F). Precipitation is lower at 69 mm (2.7 in) over 12 days, but humidity remains consistent at 88%. For more detailed information on March weather conditions, you can refer to Marstal weather in March.

In December, the weather is generally colder, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 10°C (50°F) and an average temperature of 5°C (41°F). This month also experiences higher precipitation levels, totaling 84 mm (3.3 in) over 17 days, contributing to a humid environment with humidity averaging around 88%. In contrast, April brings milder temperatures, starting from a minimum of 1°C (34°F) and reaching up to 14°C (58°F), with an average of 7°C (45°F). Precipitation decreases significantly to 36 mm (1.4 in) over just 8 days, and humidity slightly lowers to about 85%. For a detailed forecast on April weather, you can check Marstal weather in April.

In December, the weather is considerably colder, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 10°C (50°F), and an average temperature of 5°C (41°F). The month sees about 84 mm (3.3 in) of precipitation over 17 days, coupled with a high humidity level of 88%. In contrast, May offers a more temperate climate, with temperatures starting at a minimum of 5°C (41°F) and peaking at 18°C (66°F) for an average of 11°C (53°F). Precipitation is lower at 59 mm (2.3 in) spread across just 9 days, and humidity drops to 80%. For a more detailed comparison of the weather in Marstal during May, you can refer to Marstal weather in May.

In December, the weather is quite chilly, with temperatures ranging from a frigid minimum of -1°C (30°F) to a maximum of 10°C (50°F), and an average of 5°C (41°F). The month sees considerable precipitation, totaling 84 mm (3.3 in) over 17 days and high humidity at 88%. In contrast, June offers a much milder climate, with temperatures starting at a minimum of 10°C (51°F) and peaking at 23°C (74°F), averaging around 16°C (62°F). The month experiences less rainfall, with 55 mm (2.2 in) over 10 days and lower humidity at 77%. For more details, you can check out Marstal weather in June.

In December, the weather is notably colder, with average temperatures ranging from a minimum of -1°C (30°F) to a maximum of 10°C (50°F). This month experiences higher humidity levels at 88% and considerable precipitation of 84 mm (3.3 in) over 17 days, making it a relatively wet winter month. In contrast, July brings a much milder climate with temperatures averaging between 13°C (55°F) and 26°C (78°F), along with lower humidity at 77%. Precipitation in July is also less, totaling 72 mm (2.8 in) over 13 days, creating a more pleasant and drier summer atmosphere. For more detailed information on July weather, you can visit Marstal weather in July.

The weather in December and August presents a stark contrast in temperature and humidity. December features cold temperatures, with a minimum of -1°C (30°F) and an average of 5°C (41°F), while August enjoys milder conditions, starting at a minimum of 13°C (56°F) and averaging 18°C (65°F). Precipitation levels are quite similar, with December receiving 84 mm over 17 days and August slightly lower at 83 mm over 14 days. However, December's humidity is higher at 88%, compared to August's 77%, highlighting a more damp and chilly atmosphere during the winter month. For specific details about Marstal's August weather, visit Marstal weather in August.

In comparison to September, December typically brings significantly colder temperatures, with daily averages hovering around 5°C (41°F) compared to September's warmer average of 16°C (61°F). While September features comfortable conditions with minimal precipitation (72 mm over 12 days), December sees increased rainfall, totaling 84 mm across 17 days, and a higher humidity level of 88%. For those interested in the specifics of September's climate, you can explore more at Marstal weather in September.

December in Marstal brings colder temperatures, with a minimum of -1°C (30°F) and an average of 5°C (41°F), compared to the milder October, which sees minimums of 5°C (42°F) and averages of 12°C (55°F). While both months experience precipitation on 17 days, October receives more overall at 108 mm (4.2 in) compared to December's 84 mm (3.3 in). Humidity levels are quite similar, with December at 88% and October slightly lower at 87%. For a detailed look at October's weather, you can visit Marstal weather in October.

In comparing the weather patterns of November and December, December tends to be colder, with average temperatures dropping to around 5°C (41°F) compared to November's average of 8°C (47°F). The minimum temperatures in December can fall to -1°C (30°F), while November sees milder lows at 2°C (36°F). Additionally, December experiences more precipitation, accumulating 84 mm (3.3 in) over 17 days, in contrast to November's 72 mm (2.8 in) across 15 days. Despite the slight difference in humidity levels, both months remain quite high, hovering around 88% in December and 89% in November. For more detailed insights, you can refer to Marstal weather in November.

Compare Marstal's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Marstal

As December sets in, Marstal transforms into a winter wonderland, with its temperatures dipping significantly compared to earlier months, often hovering around a chilly 5°C. The days grow shorter and the air becomes heavy with humidity levels reaching 88%, making the cold feel even more pronounced. Frequent precipitation, averaging 84 mm over about 17 days, adds a layer of wetness that distinguishes this month from the more temperate fall. While brighter autumn days may linger in memory, December brings a unique charm and a cozy atmosphere that beckons to be explored. To learn more about this month's climate contrasts with the rest of the year, visit Marstal Climate.