December Weather in Lysekil, Sweden

Last updated: August 27, 2025

In December, Lysekil, Sweden, experiences a chilly climate characterized by a maximum temperature of 10°C (51°F) and a noteworthy average of 3°C (37°F). The month can be harsh, with minimum temperatures plummeting to -9°C (15°F). Rainfall is prevalent, accumulating to 80 mm (3.2 in) over approximately 16 days, creating a notably damp atmosphere underscored by a high humidity level of 93%. This combination of cold temperatures and frequent precipitation paints December in Lysekil as a month where winter truly asserts its presence.

December Temperature in Lysekil

In December, Lysekil, Sweden experiences a notable chill as winter sets in, with temperatures dipping to a minimum of -9°C (15°F) and reaching an average of 3°C (37°F). This month reflects a transition from the milder late autumn conditions, marked by November's averages of 6°C (43°F). As the year concludes, daily highs remain modest, peaking at around 10°C (51°F). The consistent drop in temperatures, especially compared to the warmer months, highlights the shift into deeper winter, tinged with the frosty air characteristic of this picturesque coastal town. Visitors during December can expect a crisp atmosphere, perfect for enjoying the serene winter landscapes and the festive spirit of the season.

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

The chart illustrates December temperature patterns in Lysekil, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lysekil, 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).
JanFebMarAprMayJunJulAugSepOctNovDec363538445261646257504337
Data source: Temperature data for Lysekil 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 Lysekil

In December, Lysekil, Sweden experiences a notable shift in precipitation patterns as winter settles in. With an average of 80 mm (3.2 in) of rain falling over 16 days, December marks a significant increase compared to the previous months. This surge in rainfall contributes to the overall wetness of the late autumn season, which peaks in October with 120 mm. Notably, December's precipitation is slightly lower than the 91 mm recorded in November but still reflects a consistent trend of increased moisture during the colder months. As daylight diminishes, the 16 days of rain serve as a reminder of the transition into the harsher winter climate, while the preceding months of autumn have prepared the landscape for this wet finale to the year.

December Precipitation Trends in Lysekil

The chart displays monthly precipitation patterns in Lysekil, 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 Lysekil, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec587067346066791041051219180
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Lysekil

In Lysekil, Sweden, December experiences humidity levels around 93%, maintaining a trend of consistently high moisture in the air as the year draws to a close. This winter month mirrors November's humidity, reflecting the onset of colder temperatures that typically accompany increased dampness. The data suggests a gradual decline in humidity from 94% in January to 71% in June, followed by a steady rise as summer transitions into the wetter fall months. With December's humidity plateauing near this year's high points, it underscores Lysekil's characteristic winter chill, setting the scene for long, cozy evenings amidst the lush coastal beauty.

December Average Humidity in Lysekil

This chart illustrates the average monthly humidity levels in Lysekil, 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 Lysekil is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%89%82%73%71%72%77%86%92%93%93%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Lysekil

In December, Lysekil, Sweden witnesses a UV Index of 1, indicating low exposure levels, similar to the preceding months of January and November. Throughout the year, the UV Index generally rises from 1 in the winter to a peak of 7 during the summer months of June and July, reflecting a notable seasonal trend. As the days shorten and temperatures drop, residents and visitors can revel in outdoor activities without the worry of sunburn, as the burn time remains a generous 45 minutes. For those interested in monitoring solar radiation levels throughout different seasons, explore the insights at Lysekil UV Index.

Maximum UV Index Levels in Lysekil for December

The chart shows the monthly maximum UV Index (UVI) for Lysekil 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 Lysekil typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123467764211
Data source: Lysekil 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 Lysekil

December in Lysekil, Sweden, sees a subtle transition as daylight hours begin to wane, yet the year closes with a glimmer of brightness. With approximately 102 hours of sunshine, this month marks a drop from the preceding vibrant autumn, where September basked in 307 hours. Despite the chill setting in, December emerges as a reflective period, contrasting sharply with the sun-drenched peak of July, which boasts 477 hours. As winter approaches, visitors experience a serene beauty as the soft sunlight dances across the coastline, providing a cozy backdrop to the festive season. While the light is fleeting, it offers a gentle reminder of the refreshing spring ahead, where the days will again stretch longer.

Monthly Sunshine Duration in Lysekil: December Highlighted

The December sunshine duration represents the total number of hours Lysekil 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.
JanFebMarAprMayJunJulAugSepOctNovDec91h176h281h379h442h470h477h412h307h246h140h102h
Data source: Lysekil December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lysekil During December

As December approaches in Lysekil, Sweden, the likelihood of enjoying sunny weather remains relatively low, with only a 29% chance of sunshine. This marks a slight uptick from the dismal 24% seen in November, but still falls short compared to the more promising forecasts of spring and early summer. The trend shows that while the chances for sunshine rise steadily from late winter, peaking at 58% in April, the darker winter months tend to keep those rays at bay. As residents gear up for the holidays, it seems that December is best characterized by its crisp air and occasional clouds rather than the warmth of the sun.

Percentage of Sunny Days in December in Lysekil

The chart illustrates the percentage of sunny days in Lysekil 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 Lysekil experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%36%42%58%32%46%44%44%30%27%24%29%
Data source: Lysekil December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lysekil in December

In Lysekil, Sweden, the evolution of daylight throughout the year reveals a striking rhythm of natural illumination. As winter sets in, December delivers the year’s shortest days, offering only 6 hours of daylight, a stark contrast to the 18 hours basked in during the height of summer in June. This gradual transition from April’s long days to the crisp, darkened December nights underscores a seasonal trend where daylight steadily increases from the depths of winter—just 7 hours in January—toward the summer solstice. As the year progresses, each month brings the promise of more sun, peaking in the warmth of summer before gently tapering off into the twilight of autumn. This cyclical dance of daylight not only shapes the landscape of Lysekil but also reflects the shifting seasons, inviting residents and visitors alike to embrace every fleeting hour of sunlight.

Average Daylight Hours in Lysekil for December

The chart illustrates the variation in daylight duration in Lysekil throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 12m9h 21m11h 52m14h 27m16h 48m18h 7m17h 24m15h 15m12h 44m10h 11m7h 49m6h 29m
Data source: Lysekil daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Lysekil

In December, the winds of Lysekil, Sweden, blow with an average speed of 4.6 m/s (10 mph), marking a slight decrease from the more robust gusts experienced in the preceding months. As the year draws to a close, the wind speeds exhibit a subtle pattern: from the brisk highs of 5.7 m/s (13 mph) in October and 5.1 m/s (11 mph) in November, December brings a gentler breeze, reminiscent of the quieter spring months like May and July, which also hovered around 3.7 m/s. Overall, while December's winds remain moderate, they provide a reflective transition into the stillness of winter, echoing the seasonal cycle of nature in this coastal town.

Average December Wind Speed in Lysekil

The chart displays monthly wind speed patterns in Lysekil, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.24.74.74.83.74.03.73.94.25.75.14.6 m/s
Data source: Lysekil December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Lysekil Compares to Other Months

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

In December, the weather features a milder average temperature of 3°C (37°F) with a maximum of 10°C (51°F), making it slightly warmer than January, which has an average of 2°C (36°F) and reaches a maximum of 9°C (49°F). December also experiences more precipitation, tallying 80 mm (3.2 in) over 16 days, compared to January's 58 mm (2.3 in) over 10 days. Notably, humidity remains relatively high in both months, with December at 93% and January rising slightly to 94%. For more detailed insights on January weather, you can visit Lysekil weather in January.

When comparing the weather in December and February, December typically experiences milder temperatures, with averages around 3°C (37°F), while February sees a slightly chillier average of 1°C (35°F). Both months have similar maximum temperatures, each reaching up to 11°C (51°F), but February can get colder at night, with minimum temperatures dipping to -14°C (8°F) compared to December's -9°C (15°F). In terms of precipitation, December accumulates more with 80 mm (3.2 in) over 16 days, while February has 70 mm (2.7 in) spread over just 11 days. Humidity levels are comparable, with December at 93% and February at 92%. For more detailed insights about February weather, you can check Lysekil weather in February.

December and March present notable differences in weather patterns despite their similar average temperatures. In December, temperatures range from a minimum of -9°C (15°F) to a maximum of 10°C (51°F), with high humidity at 93% and significant precipitation of 80 mm (3.2 in) over 16 days. In contrast, March is slightly cooler with a minimum of -12°C (11°F) and a maximum of 12°C (53°F), but experience lower precipitation at 67 mm (2.6 in) spread over just 11 days, along with a lower humidity level of 89%. For a closer look at March's conditions, you can refer to Lysekil weather in March.

December and April present contrasting weather conditions. In December, temperatures range from a chilly -9°C (15°F) to a mild 10°C (51°F), with an average of 3°C (37°F). The month typically experiences 80 mm (3.2 in) of precipitation over 16 days, accompanied by high humidity levels at 93%. In contrast, April brings a significant warming trend, with temperatures ranging from -3°C (26°F) to a comfortable 20°C (68°F) and an average of 7°C (44°F). Precipitation decreases to 34 mm (1.4 in) over just 7 days, and humidity also drops to 82%. For more details on the weather patterns, you can check Lysekil weather in April.

December and May present contrasting weather patterns in terms of temperature, precipitation, and overall climate. In December, temperatures can plummet to a minimum of -9°C (15°F), with an average temperature around 3°C (37°F) and a maximum of 10°C (51°F). The month is characterized by high humidity at 93% and considerable precipitation, averaging 80 mm (3.2 in) over 16 days. In stark contrast, May brings a milder climate with temperatures ranging from a minimum of 1°C (34°F) to an average of 11°C (53°F), peaking at a warm 28°C (83°F). Although May also sees some rainfall, it is less frequent, totaling 60 mm (2.4 in) over just 11 days, and the humidity dips to a more comfortable 73%. For a closer look at the pleasant conditions of May, visit Lysekil weather in May.

In December, the weather tends to be quite cold, with temperatures ranging from a minimum of -9°C (15°F) to a maximum of 10°C (51°F), and an average of around 3°C (37°F). The month experiences significant precipitation, totaling 80 mm (3.2 in) over about 16 days, accompanied by high humidity levels at 93%.

In contrast, June ushers in a much milder climate, with temperatures ranging from a minimum of 8°C (47°F) to a pleasant maximum of 28°C (83°F), and an average of 16°C (61°F). Precipitation decreases to 66 mm (2.6 in) over just 11 days, and humidity drops to 71%. For more detailed information about the weather in June, you can visit Lysekil weather in June.

Overall, December's frigid temperatures and high humidity starkly contrast with June's warm conditions and reduced precipitation, making for a profound seasonal difference.

December and July present strikingly different weather conditions. In December, temperatures can plunge to a minimum of -9°C (15°F), with an average of just 3°C (37°F) and a maximum of 10°C (51°F). This month experiences significant humidity at 93% and receives about 80 mm (3.2 in) of precipitation across 16 days. In contrast, July brings a much warmer climate with minimum temperatures around 9°C (48°F) and an average of 18°C (64°F), peaking at a comfortable 30°C (86°F). With lower humidity at 72%, July sees similar precipitation levels of about 79 mm (3.1 in) but over only 10 days, making it a much drier month overall. For further details on July weather, you can check Lysekil weather in July.

The weather in December showcases a stark contrast to that of August. In December, temperatures can dip as low as -9°C (15°F), with an average of just 3°C (37°F) and a maximum of 10°C (51°F). The month is characterized by high humidity at 93% and substantial precipitation, totaling 80 mm (3.2 in) over 16 days. Conversely, August enjoys milder conditions, with temperatures ranging from a minimum of 8°C (47°F) to a pleasant maximum of 30°C (87°F), averaging at 17°C (62°F). While August has slightly higher precipitation at 104 mm (4.1 in) over 15 days, the humidity is notably lower at 77%. These differences highlight the seasonal transitions that profoundly affect the climate in this region. For more details, you can visit Lysekil weather in August.

In comparing the weather of December and September, we can observe notable differences in temperature and precipitation patterns. December typically sees colder temperatures, with a minimum of -9°C (15°F) and an average of 3°C (37°F), while September enjoys milder conditions with a minimum of 3°C (38°F) and an average of 14°C (57°F). Precipitation is slightly higher in September, totaling 105 mm (4.1 in) over 15 days, compared to December's 80 mm (3.2 in) spread over 16 days. Additionally, December's humidity is higher at 93%, whereas September has a more moderate humidity level of 86%. For more insights on September weather, you can visit Lysekil weather in September.

In December, the weather in Lysekil becomes significantly colder, with average temperatures ranging from a minimum of -9°C (15°F) to a maximum of 10°C (51°F), compared to October's milder temperatures, which range from a minimum of -2°C (30°F) to a maximum of 19°C (66°F). While October experiences higher average temperatures, it also sees more rainfall, with 120 mm (4.7 in) over 17 days, compared to December's 80 mm (3.2 in) over 16 days. Humidity levels remain high in both months, with December at 93% and October slightly lower at 92%. For more detailed information on October weather, check Lysekil weather in October.

In comparing the weather patterns of December and November, December tends to be slightly cooler than November. While both months experience minimum temperatures around -9°C (15°F), December's average temperature is 3°C (37°F), which is lower than November's average of 6°C (43°F). Additionally, the maximum temperatures in December reach only 10°C (51°F), compared to November's warmer maximum of 15°C (59°F). Precipitation levels are relatively close, with December receiving 80 mm (3.2 in) over 16 days, while November sees slightly higher precipitation at 91 mm (3.6 in) over 15 days. Interestingly, both months share the same humidity level of 93%. For more detailed insights, you can check out Lysekil weather in November.

Compare Lysekil's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Lysekil

As December unfolds in Lysekil, the weather transforms significantly, marking a shift from the milder autumn temperatures to the chill of winter. With average temperatures hovering around 3°C, residents and visitors experience a briskness that contrasts sharply with the more temperate months prior. The notable increase in precipitation, totaling 80 mm over 16 days, coupled with a high humidity of 93%, adds to the wet and often gray landscape. This damp atmosphere, along with the potential for cold snaps leading to temperatures as low as -9°C, makes December a month distinctly characterized by its cool, wet conditions, a departure from the generally drier and warmer autumn days. For a deeper look into the seasonal variations, explore the details at Lysekil Climate.