December Weather in Karlsruhe, Germany

Last updated: February 26, 2025

In December, Karlsruhe, Germany, experiences a cool and damp climate, with average temperatures hovering around 4°C (40°F). The month sees a maximum of 14°C (58°F) and dips to a chilly minimum of -5°C (24°F), reminding residents and visitors alike of winter's presence. Rainfall is significant, with 108 mm (4.2 in) spread over 18 days, contributing to a high humidity level of 91% that blankets the city in a misty embrace. This combination of cool temperatures and frequent precipitation sets the stage for a quintessentially European winter experience.

December Temperature in Karlsruhe

As December unfolds in Karlsruhe, Germany, temperatures begin to dip, marking a transition into the deeper winter months. With a minimum temperature of -5°C (24°F), the days can feel quite crisp, while the average hovers around 4°C (40°F), providing a chilly yet bearable climate for outdoor activities. The maximum reaches about 14°C (58°F), allowing for occasional mild spells that can make winter strolls enjoyable. This month typically showcases a steady decline from the more moderate temperatures of November, signaling a clear shift towards the wintry season. As the year draws to a close, the cool weather invites cozy gatherings and festive cheer, making December a unique and charming month in Karlsruhe.

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

The chart illustrates December temperature patterns in Karlsruhe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec374045515868696961544339
Data source: Temperature data for Karlsruhe 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 Karlsruhe

In December, Karlsruhe experiences a notable surge in precipitation, recording 108 mm (4.2 in), making it the wettest month of the year. This month's rainfall is accompanied by an increase in the number of precipitation days, totaling 18, which is significantly higher than any other month. The frequent rains contribute to a damp and chilly atmosphere as winter settles in. This increase in both the volume and frequency of rainfall contrasts sharply with the drier spring months like April, which sees only 36 mm (1.4 in) over a mere 8 days. Overall, December sets the stage for a soggy end to the year in Karlsruhe, reflecting a seasonal shift that influences both local weather patterns and the landscape's wintry charm.

December Precipitation Trends in Karlsruhe

The chart displays monthly precipitation patterns in Karlsruhe, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7568763684796760486853108
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Karlsruhe

In Karlsruhe, Germany, December ushers in a season of increased moisture, with humidity levels rising to 91%, reflecting the trend of winter's chill that often brings dampness. As the year progresses, humidity generally fluctuates, peaking during the colder months of January and December, while reaching its lowest point in the more temperate May at 79%. This pattern highlights a steady increase during late fall, with November measuring 89%, setting the stage for the year's final month. Overall, the data indicates a mild upswing in humidity as we transition from autumn into winter, emphasizing Karlsruhe’s distinctly humid climate as the year draws to a close.

December Average Humidity in Karlsruhe

This chart illustrates the average monthly humidity levels in Karlsruhe, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%83%79%82%83%84%86%88%89%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Karlsruhe

In December, Karlsruhe experiences a significant drop in the UV Index, landing at a low 1, which means minimal risk of harm from unprotected sun exposure. This decline reflects a trend throughout the winter months, where the UV Index generally decreases, offering a reprieve after the peak levels observed in the summer. With a burn time of 45 minutes, residents and visitors can comfortably enjoy outdoor activities with little concern for sunburn. As the year closes, December serves as a gentle reminder that while the sun may pose less of a threat now, it's always good practice to stay informed about local UV levels and protection measures. For more detailed insights, check out Karlsruhe UV Index.

Maximum UV Index Levels in Karlsruhe for December

The chart shows the monthly maximum UV Index (UVI) for Karlsruhe 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.
JanFebMarAprMayJunJulAugSepOctNovDec234688876421
Data source: Karlsruhe 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 Karlsruhe

December in Karlsruhe, Germany, heralds the arrival of shorter days, with sunshine totaling 144 hours. This contrasts beautifully with the vibrant months that precede it, particularly July, which enjoys the highest sunshine at 415 hours. The trend throughout the year reveals a gradual increase in daylight from winter’s grasp in January, peaking in mid-summer, before witnessing a steady decline as autumn sets in. By December, the days become noticeably shorter and gloomier, yet there’s a certain charm in the crisp air and the soft glow of festive lights that make this tranquil month special. Despite the reduced hours of sunlight, Karlsruhe’s December still carries a whisper of warmth, preparing the city for the coming season.

Monthly Sunshine Duration in Karlsruhe: December Highlighted

The December sunshine duration represents the total number of hours Karlsruhe 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.
JanFebMarAprMayJunJulAugSepOctNovDec127h206h280h348h390h395h415h384h322h263h191h144h
Data source: Karlsruhe December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Karlsruhe During December

In December, Karlsruhe experiences a significant drop in the likelihood of sunny weather, with only an 18% chance of sun. This marks one of the lowest probabilities of sunshine throughout the year, following the 25% chance observed in November. The trend suggests a gradual transition to cloudier conditions as winter approaches, with the chances of sunshine decreasing notably from the more promising 40% in February and peaking at 49% in April. As the year winds down, residents and visitors alike must prepare for the cozy embrace of winter’s gloom, giving way to a season that embraces the chill rather than the sun.

Percentage of Sunny Days in December in Karlsruhe

The chart illustrates the percentage of sunny days in Karlsruhe 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 Karlsruhe experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%40%45%49%32%33%39%33%47%35%25%18%
Data source: Karlsruhe December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Karlsruhe in December

December in Karlsruhe, Germany, marks the arrival of winter, bringing with it the shortest daylight duration of the year at just 8 hours. As the year progresses from the long, sunlit days of June with 16 hours of daylight, there’s a noticeable decline through the warmer months, tapering off to 14 hours in August and 12 hours in September. A steady decrease takes place as autumn sets in, seeing both October and November offering 10 and 9 hours of daylight, respectively. This trend highlights the cyclical nature of daylight throughout the year, where December’s brief sunlight serves as a reminder of the longer days to come in the following spring.

Average Daylight Hours in Karlsruhe for December

The chart illustrates the variation in daylight duration in Karlsruhe throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 43m10h 9m11h 55m13h 44m15h 19m16h 7m15h 41m14h 17m12h 32m10h 44m9h 7m8h 16m
Data source: Karlsruhe daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Karlsruhe

As December arrives in Karlsruhe, Germany, the winds start to pick up again, reflecting a shift in the season’s breath. With an average speed of 3.1 m/s (7 mph), December breezes provide a notable increase compared to the stillness of summer and early autumn, where winds have slowed to between 2.1 m/s and 2.6 m/s. This elevation in wind speed signals the transition into the colder months, contrasting sharply with the spring and early summer peaks in May, where winds gust up to 3.7 m/s (8 mph). The winter winds carry a crispness, suggesting both the approach of colder temperatures and the culmination of a year's cycling weather patterns, inviting residents to embrace the invigorating chill of the season.

Average December Wind Speed in Karlsruhe

The chart displays monthly wind speed patterns in Karlsruhe, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.53.03.02.73.72.12.42.62.12.62.63.1 m/s
Data source: Karlsruhe December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Karlsruhe Compares to Other Months

The weather in Karlsruhe changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Karlsruhe and find detailed weather information for every month.

December and January weather in Karlsruhe exhibit a notable shift in temperatures and precipitation patterns. December experiences milder temperatures, with a minimum of -5°C (24°F) and an average of 4°C (40°F), while January sees even colder nights, dropping to a minimum of -12°C (10°F). Despite this chill, both months share a maximum temperature of 14°C (58°F) for December and 14°C (57°F) for January. Precipitation levels also vary, with December receiving 108 mm (4.2 in) over 18 days, whereas January totals 75 mm (2.9 in) over just 12 days, resulting in a drier start to the new year. Humidity levels remain consistent at 91% for both months. For more detailed insights on the January weather, visit Karlsruhe weather in January.

In December, the temperatures range from a chilly minimum of -5°C (24°F) to a comfortable maximum of 14°C (58°F), with an average temperature of 4°C (40°F). This month experiences significant rainfall, totaling 108 mm (4.2 in) over 18 days and is characterized by high humidity at 91%. In contrast, February is colder, with temperatures dipping as low as -12°C (10°F) and peaking at 20°C (69°F), while maintaining a similar average of 5°C (40°F). Precipitation in February is less frequent, with 68 mm (2.7 in) of rain spread over 11 days, and the humidity slightly decreases to 89%. For more detailed insights into February weather, visit Karlsruhe weather in February.

December and March in Karlsruhe present distinct weather patterns, showcasing the transition from winter to early spring. In December, temperatures range from a chilly -5°C (24°F) to a mild maximum of 14°C (58°F), while the average temperature hovers around 4°C (40°F). The month is characterized by high humidity at 91% and considerable rainfall, with 108 mm (4.2 in) spread over 18 days. In contrast, March experiences slightly lower minimum temperatures at -11°C (13°F) but reaches a warmer average of 7°C (45°F) and peaks at a pleasant 23°C (73°F). Precipitation decreases to 76 mm (3.0 in) over 14 days, with humidity slightly reduced to 87%. For more information about the weather specifics in March, you can visit Karlsruhe weather in March.

December is characterized by its cold temperatures, with minimums dropping as low as -5°C (24°F) and an average around 4°C (40°F). The month sees considerable precipitation, totaling 108 mm (4.2 in) over about 18 days, and maintains a high humidity level of 91%. In contrast, April experiences a noticeable warming trend, with minimum temperatures around -3°C (27°F) and a much warmer average of 11°C (52°F), peaking at a comfortable 28°C (82°F). Rainfall is significantly lighter, with only 36 mm (1.4 in) spread over just 8 days, and the humidity decreases to 83%. The shift from December to April not only brings higher temperatures but also a more favorable balance of sunshine and rain. For more details, visit Karlsruhe weather in April.

In December, the weather is typically colder, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 14°C (58°F), and an average temperature of around 4°C (40°F). The month sees significant precipitation, totaling 108 mm (4.2 in) over 18 days, alongside high humidity levels at 91%. In contrast, May offers a much milder climate, with temperatures fluctuating between 1°C (34°F) and 31°C (88°F), and an average temperature of 14°C (58°F). Precipitation in May is less, at 84 mm (3.3 in) over 13 days, accompanied by a lower humidity level of 79%. For more details on the weather in May, you can visit Karlsruhe weather in May.

December and June present a striking contrast in weather conditions. In December, temperatures can dip as low as -5°C (24°F), with an average of 4°C (40°F) and highs reaching only 14°C (58°F). The month is characterized by significant precipitation, averaging 108 mm (4.2 in) over 18 days, accompanied by high humidity levels at 91%. In contrast, June boasts much milder weather, with minimum temperatures starting at 8°C (47°F), average temperatures of 20°C (68°F), and maximums soaring to 36°C (96°F). Precipitation decreases to 79 mm (3.1 in) over just 11 days, and humidity sits slightly lower at 82%. For a more detailed look at June's climate, you can check Karlsruhe weather in June.

When comparing December and July weather, there are stark contrasts in both temperature and precipitation. December sees much colder temperatures, ranging from a minimum of -5°C (24°F) to a maximum of 14°C (58°F), with an average of 4°C (40°F). In this month, rainfall is relatively high at 108 mm (4.2 in) over 18 days, coupled with high humidity levels at 91%. In contrast, July experiences much warmer conditions, with temperatures ranging from a low of 10°C (50°F) to a high of 38°C (101°F) and an average of 21°C (70°F). Precipitation decreases significantly to 67 mm (2.6 in) over a shorter period of 12 days, and humidity is slightly lower at 83%. For more insights into the weather specifics of July, you can check Karlsruhe weather in July.

December and August in Karlsruhe present a stark contrast in weather conditions. In December, temperatures range from a chilly -5°C (24°F) at night to a mild 14°C (58°F) during the day, with an average temperature of just 4°C (40°F). The month is characterized by high humidity at 91% and significant precipitation, averaging 108 mm (4.2 in) across approximately 18 days. In contrast, August experiences much warmer conditions, with temperatures starting at a minimum of 8°C (47°F) and peaking at a hot 35°C (95°F), leading to an average of 21°C (69°F). The humidity is somewhat lower at 84%, and the month sees less rainfall, with 60 mm (2.4 in) spread over 12 days. For more detailed information, check out Karlsruhe weather in August.

December and September present contrasting weather patterns. In December, temperatures dip significantly, with a minimum of -5°C (24°F) and an average of 4°C (40°F), leading to a chilly atmosphere, while September enjoys milder conditions, featuring a minimum of 4°C (40°F) and a pleasant average of 16°C (62°F). The maximum temperatures in September can soar to 32°C (90°F), making it the warmer month overall. Additionally, December experiences higher precipitation, totaling 108 mm (4.2 in) over 18 days, compared to September's 48 mm (1.9 in) over just 8 days, resulting in a wetter atmosphere. Notably, humidity levels are slightly higher in December at 91%, compared to 85% in September. For a detailed look at the conditions, you can check Karlsruhe weather in September.

In comparing the weather of December and October, December is noticeably colder, with average temperatures ranging from a minimum of -5°C (24°F) to a maximum of 14°C (58°F), while October enjoys milder conditions with temperatures between 2°C (36°F) and 27°C (80°F). Additionally, December experiences more precipitation, averaging 108 mm (4.2 in) over 18 days, compared to October's 68 mm (2.7 in) over 13 days. The humidity in December is slightly higher at 91%, in contrast to October's 88%, contributing to a crisper and more damp environment as the year comes to a close. For more details about October weather, you can check out Karlsruhe weather in October.

December weather is notably colder and wetter compared to November. In December, temperatures drop significantly, with a minimum of -5°C (24°F) and an average of 4°C (40°F), while November sees slightly milder conditions, with a minimum of -2°C (29°F) and an average of 6°C (44°F). Additionally, December experiences more precipitation, totaling 108 mm (4.2 in) over 18 days, compared to November's 53 mm (2.1 in) spread across just 10 days. Humidity levels are slightly higher in December at 91%, compared to 89% in November. For a more detailed look at November weather, you can visit Karlsruhe weather in November.

Compare Karlsruhe's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Karlsruhe

As December sets in, Karlsruhe experiences a notable shift in weather compared to other months, with cooler temperatures and increased precipitation dominating the landscape. The chill of winter is palpable, as average daily temperatures hover around 4°C (40°F), dipping to a low of -5°C (24°F) at times. While the city maintains a certain charm with its festive atmosphere, the 91% humidity paired with 108 mm (4.2 in) of rainfall over roughly 18 days creates a damp environment that contrasts sharply with the more temperate months of spring and summer. For a more detailed understanding of how these conditions shape the seasonal climate, visit Karlsruhe Climate.