December Weather in Nacka, Sweden

Last updated: August 27, 2025

In December, Nacka, Sweden, experiences a chilly winter atmosphere, with average temperatures hovering around 2°C (35°F) and dipping to a minimum of -10°C (14°F). Residents can expect maximum temperatures peaking at 8°C (47°F), a stark contrast to the frigid lows. This month brings significant precipitation, with a total of 70 mm (2.8 in) spread over 15 days, leading to a notably humid environment, averaging 87% humidity. As frosty landscapes transform with winter's touch, the charm of Nacka in December invites both locals and visitors to embrace the season's beauty with cozy outings and festive cheer.

December Temperature in Nacka

In December, Nacka, Sweden, presents a chilly embrace as winter takes hold, with temperatures ranging from a brisk -10°C (14°F) at their lowest to a somewhat milder 8°C (47°F) as the maximum. The average temperature hovers around 2°C (35°F), mirroring the transition into the colder months. This month notably marks a slight uptick in temperature compared to the preceding November, which experienced a minimum of -7°C (20°F) and an average of 5°C (41°F). As daylight wanes, the crisp air and serene snowscapes invite a cozy atmosphere, perfect for enjoying the festive season while nestled in warm layers.

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

The chart illustrates December temperature patterns in Nacka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nacka, 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).
JanFebMarAprMayJunJulAugSepOctNovDec333235404959636356484135
Data source: Temperature data for Nacka 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 Nacka

In December, Nacka, Sweden experiences a notable uptick in precipitation, with 70 mm (2.8 in) of rain spread over 15 days. This trend marks a significant rise compared to preceding months, particularly November, which recorded 50 mm (2.0 in) over 11 days. The winter's onset brings increased moisture, likely contributing to the festive, often overcast atmosphere of the season. As the year closes, December not only delivers more rainfall than any month since October but also offers a higher frequency of rainy days, emphasizing the transition into Sweden's cold, wet climate during the winter months.

December Precipitation Trends in Nacka

The chart displays monthly precipitation patterns in Nacka, 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 Nacka, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec433844255044556852765170
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Nacka

In Nacka, Sweden, December brings a slight drop in humidity to 87%, following the high levels seen in the preceding months. The year starts off with notably high humidity, peaking at 90% in both January and November. As the seasons change, there's a gradual decline, with summer months experiencing the lowest values, around 74-77% in July and August. Interestingly, as fall settles in, humidity begins to rise again, climbing back to 89% come October. December's humidity reflects this trend, offering a blend of crisp winter air while still maintaining notable moisture, making it a significant part of the seasonal transition in Nacka.

December Average Humidity in Nacka

This chart illustrates the average monthly humidity levels in Nacka, 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 Nacka is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%89%85%77%76%74%77%85%89%90%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Nacka

In December, Nacka, Sweden experiences a UV Index of 1, indicating a low exposure category with a burn time of approximately 45 minutes. This trend of low UV levels is consistent with the preceding months of November and October, where indices also registered at 1 and 2 respectively. As the year draws to a close, the UV Index remains largely calm, reflecting the shorter days and diminished sunlight typical of winter. This is a stark contrast to the summer months, particularly June and July, when the index surged to a high of 7. As you enjoy the chilly winter days, it’s essential to remember that while the UV exposure may be low, protective measures are always a wise choice. For more detailed insights into UV levels throughout the year, visit Nacka UV Index.

Maximum UV Index Levels in Nacka for December

The chart shows the monthly maximum UV Index (UVI) for Nacka 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 Nacka typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457754211
Data source: Nacka 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 Nacka

In Nacka, Sweden, the month of December brings a gentle dip in sunshine, with only 78 hours to bask in the fading light of the year. This marks a stark contrast to the brighter days of summer, where July gleams with nearly 488 hours of sunlight. The trend over the months reveals a gradual build-up of sunlight from the winter's 71 hours in January, peaking in June and July, before the daylight dwindles again toward the end of the year. While December may feel quite dim compared to the vibrant 454 hours of May, the slow return to longer days begins with the turn of the calendar, ushering in the promise of spring ahead. The cycle of sunlight in Nacka is not just a reflection of the seasons but also a reminder of nature's rhythm, inviting residents to cherish each fleeting ray in the colder months.

Monthly Sunshine Duration in Nacka: December Highlighted

The December sunshine duration represents the total number of hours Nacka 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.
JanFebMarAprMayJunJulAugSepOctNovDec71h171h261h366h454h477h488h419h312h219h138h78h
Data source: Nacka December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nacka During December

In Nacka, Sweden, the likelihood of sunny weather experiences a notable shift as the year progresses. December sits at a 30% chance of sunshine, echoing the preceding months but distinctly lower than the more radiant summer months. The sun begins to make a more regular appearance as early as March, where possibilities rise to 34%, and continues to peak in July at an impressive 57%. As autumn fades, the December sky is still likely to bring occasional sunny breaks, aligning closely with its late-fall counterparts like November and October, both hovering around 29% to 30%. Thus, while December may not boast the sunniest days, it carries a consistent promise of light amidst the long nights.

Percentage of Sunny Days in December in Nacka

The chart illustrates the percentage of sunny days in Nacka 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 Nacka experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%30%34%49%31%55%57%38%27%30%29%30%
Data source: Nacka December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nacka in December

As December arrives in Nacka, Sweden, the daylight hours dwindle to just 6 hours, echoing the dimming light of January. This diminutive duration marks the culmination of a gradual decline from the vibrant 18 hours of June, where summer days stretch luxuriously long. Transitioning through the months, residents experience a notable increase in daylight during spring, peaking in April at 14 hours, only to see a steady decrease as autumn sets in. By December, the daylight hours mirror the depths of winter, creating a cozy, yet reflective atmosphere as the year draws to a close. This cyclical rhythm of light and dark paints a vivid portrait of Nacka's seasonal shifts, inviting both the beauty of shorter days and the anticipation of longer ones that will follow in the new year.

Average Daylight Hours in Nacka for December

The chart illustrates the variation in daylight duration in Nacka throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 59m9h 14m11h 52m14h 33m17h 1m18h 26m17h 40m15h 23m12h 46m10h 7m7h 38m6h 13m
Data source: Nacka daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Nacka

As December unfolds in Nacka, Sweden, the winds continue to howl with an average speed of 5.3 m/s (12 mph), mirroring the gusty conditions experienced in November. This consistency suggests that the onset of winter brings a brisk reminder of nature's presence, with wind speeds holding steady even as the temperatures drop. A closer look at the year's wind patterns reveals a gentle decline from the higher speeds in October, where winds peaked at 5.8 m/s (13 mph). The trend illustrates a gradual transition into calmer months, from the dynamic breezes of early autumn to the more subdued winds of summer. As Nacka embraces the chill of December, the wind whispers tales of the changing season, encouraging locals and visitors alike to bundle up and enjoy the crisp, invigorating air.

Average December Wind Speed in Nacka

The chart displays monthly wind speed patterns in Nacka, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.25.15.14.94.03.53.94.54.85.85.35.3 m/s
Data source: Nacka December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Nacka Compares to Other Months

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

December and January present distinct aspects of winter weather. December experiences an average temperature of 2°C (35°F), with a range that dips to a minimum of -10°C (14°F) and peaks at 8°C (47°F). The month is characterized by significant precipitation, totaling 70 mm (2.8 in) across 15 days, and a humidity level of 87%. In contrast, January shows colder temperatures with an average of 0°C (33°F), where the minimum can drop to -15°C (6°F) and the maximum reaches 9°C (49°F). Precipitation decreases to 43 mm (1.7 in) over just 10 days, and humidity rises slightly to 90%. For a more detailed look at January’s weather, you can visit Nacka weather in January.

December and February both display cold winter climates, but there are notable differences in their weather patterns. December experiences slightly milder temperatures with an average of 2°C (35°F) and a maximum of 8°C (47°F), while February has a colder average of 0°C (32°F) and a minimum that dips down to -12°C (11°F). Precipitation is more abundant in December, totaling 70 mm (2.8 in) over about 15 days, compared to February's 38 mm (1.5 in) over just 9 days. Humidity levels remain high in both months, with February hovering around 88%. For more detailed information on February weather, you can visit Nacka weather in February.

In December, the weather typically features a minimum temperature of -10°C (14°F) and an average of 2°C (35°F), with a maximum reaching 8°C (47°F). This month experiences considerable precipitation, totaling 70 mm (2.8 in) over about 15 days, coupled with high humidity at 87%. In contrast, March shares the same minimum of -10°C (14°F) and average temperature of 2°C (35°F) but sees a higher maximum at 14°C (57°F). Precipitation decreases to 44 mm (1.7 in) over just 9 days, while humidity remains slightly higher at 89%. For more details on March weather, you can visit Nacka weather in March.

December weather in Nacka is characterized by cold temperatures, with a minimum often plunging to -10°C (14°F) and an average around 2°C (35°F). The month experiences significant precipitation, totaling 70 mm (2.8 in) over about 15 days, along with high humidity levels at 87%. In contrast, April offers a noticeable shift, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 17°C (62°F) and an average of 5°C (40°F). Precipitation decreases to 25 mm (1.0 in) over only 7 days, and humidity remains slightly lower at 85%. This transition marks the end of the bitter cold of winter and the gentle arrival of spring. For more detailed insights, you can check Nacka weather in April.

December and May exhibit contrasting weather patterns. In December, temperatures can plunge to a minimum of -10°C (14°F) and average around 2°C (35°F), with a maximum of only 8°C (47°F). The month sees considerable precipitation, totaling 70 mm (2.8 in) over about 15 days, accompanied by high humidity levels at 87%. In stark contrast, May brings a milder climate, with temperatures ranging from a minimum of -2°C (29°F) to an average of 9°C (49°F), peaking at 21°C (69°F). Precipitation is less frequent, totaling 50 mm (2.0 in) over just 9 days, and humidity decreases to 77%. For more specific insights into the weather during this lively spring month, you can visit Nacka weather in May.

In December, the weather is notably colder, with temperatures ranging from a frigid minimum of -10°C (14°F) to a mild maximum of 8°C (47°F). This month sees an average temperature of just 2°C (35°F) and experiences significant precipitation of about 70 mm (2.8 in) over approximately 15 days, accompanied by high humidity at 87%. In contrast, June brings a much warmer atmosphere, boasting minimum temperatures of 7°C (44°F) and comfortable maximum temperatures reaching 23°C (75°F). The average temperature in June is a pleasant 15°C (60°F), with much less precipitation at 44 mm (1.7 in) over only 7 days and a lower humidity of 76%. To explore more about the weather in June, check out Nacka weather in June.

December and July exhibit stark contrasts in weather, reflecting the distinct characteristics of winter and summer. In December, temperatures can plunge to a chilling -10°C (14°F), with an average of 2°C (35°F) and a maximum of 8°C (47°F). The month sees substantial precipitation, totaling 70 mm (2.8 in) over approximately 15 days, accompanied by high humidity levels at 87%. In contrast, July offers a much milder climate, where temperatures range from a minimum of 9°C (48°F) to an average of 17°C (64°F), peaking at 26°C (80°F). Precipitation is less frequent in July, with only 55 mm (2.1 in) falling over 9 days and humidity at a more comfortable 74%. To explore the weather specifics for July, you can check Nacka weather in July.

December and August present starkly contrasting weather conditions. In December, temperatures plummet, with a minimum of -10°C (14°F) and an average of just 2°C (35°F), while max temperatures reach a chilly 8°C (47°F). The month is characterized by high humidity at 87% and frequent precipitation, totaling around 70 mm (2.8 in) over 15 days. In contrast, August offers a much milder climate, with temperatures ranging from a minimum of 8°C (47°F) to a warm average of 17°C (63°F) and maximums soaring to 27°C (81°F). Precipitation in August is slightly lower at 68 mm (2.7 in) over 12 days, accompanied by a more comfortable humidity level of 77%. For more details, check out Nacka weather in August.

December and September present contrasting weather experiences. In December, temperatures dip significantly, with a minimum of -10°C (14°F) and an average of just 2°C (35°F), while the maximum reaches a cool 8°C (47°F). This month also sees increased precipitation, averaging 70 mm over 15 days and a higher humidity level at 87%. In contrast, September offers a milder climate, with temperatures ranging from a minimum of 3°C (38°F) to a comfortable average of 13°C (56°F) and a maximum of 22°C (72°F). The precipitation is less, totaling 52 mm across 10 days, paired with slightly lower humidity at 85%. For a closer look at the weather specifics in September, check out Nacka weather in September.

In comparing the weather of December and October, December tends to be significantly colder, with average temperatures ranging from a minimum of -10°C (14°F) to a maximum of 8°C (47°F). In contrast, October offers a milder climate, with temperatures ranging from 0°C (32°F) at night to a pleasant 16°C (60°F) during the day. December also sees more precipitation over a longer duration, averaging 70 mm (2.8 in) across 15 rainy days compared to October's 76 mm (3.0 in) across just 13 days. Humidity levels are quite similar, with December at 87% and October at 89%, highlighting the dampness typical of both months. For more detailed information, you can check out Nacka weather in October.

In December, temperatures tend to be colder than in November, with average lows dropping to -10°C (14°F) compared to November's minimum of -7°C (20°F). The average temperature in December is 2°C (35°F), whereas November boasts a milder average of 5°C (41°F). Additionally, December experiences more precipitation, totaling 70 mm (2.8 in) over 15 days, while November has 50 mm (2.0 in) across 11 days. The humidity remains relatively high in both months, with December at 87% and November slightly higher at 90%. For more details on November weather patterns, you can visit Nacka weather in November.

Compare Nacka's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Nacka

As December rolls in, Nacka's weather takes on a chilly character distinct from the milder months of fall. With average temperatures hovering around 2°C (35°F), the air feels crisp and invigorating, yet a stark contrast to the warmer autumn days. The month also sees an increase in precipitation, often manifesting as rain or even early snow, contributing to the 87% humidity that cloaks the landscape in a damp chill. The 15 days of precipitation lend a wintery feel, making December feel like a transition into true winter. For a deeper understanding of how December fits within Nacka's overall climate, explore Nacka Climate.