December Weather in Calw, Germany

Last updated: February 26, 2025

In Calw, Germany, December brings a chilly embrace with average temperatures hovering around 3°C (37°F), while highs can reach up to 13°C (56°F) and lows plummet to a brisk -10°C (15°F). This month is characterized by significant precipitation, adding up to 123 mm (4.8 in) over 18 rainy days, contributing to a humidity level of 91%. Visitors and residents alike should prepare for a damp and cool climate, perfect for cozy indoor activities and enjoying the festive season.

December Temperature in Calw

In Calw, Germany, December ushers in the holiday spirit with a noticeable chill that sets the tone for a winter wonderland. Temperatures during this month fluctuate, starting with a minimum of -10°C (15°F), and peaking at a comfortable maximum of 13°C (56°F). The average temperature hovers around 3°C (37°F), marking a significant drop compared to the milder autumn months. As the year draws to a close, the cold, crisp air invigorates the landscape, contrasting beautifully against the festive decorations. With a sharper chill emerging from the milder November, December encapsulates the essence of winter, inviting locals and visitors alike to embrace the cozy charms of the season.

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

The chart illustrates December temperature patterns in Calw, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec343742495564666658514137
Data source: Temperature data for Calw 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 Calw

In December, Calw, Germany, experiences its wettest month of the year, with precipitation soaring to 123 mm (4.8 in). This significant rainfall typically spans 18 days, highlighting a trend of increased moisture as winter sets in. Compared to earlier months, December's precipitation is notably higher, with only a few months, such as May and June, coming close in terms of total rainfall. The increase in rainy days during this month signals a shift toward a colder, wetter season, as the landscape transforms under a blanket of moisture, preparing for the chill of January.

December Precipitation Trends in Calw

The chart displays monthly precipitation patterns in Calw, 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.
JanFebMarAprMayJunJulAugSepOctNovDec92839952112114107111668762123
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Calw

In Calw, Germany, December brings a notable rise in humidity, reaching 91%, the same level recorded in January. This uptick follows a gradual increase from the drier months of spring, where humidity dipped to its lowest at 79% in May. As the year progresses, a steady upward trend emerges, with summer months maintaining a relatively stable humidity around 82% to 84%. However, late autumn sees a return to the higher humidity levels typical of the winter season, with both November and December hovering at 89% and 91%, respectively. Thus, December encapsulates the seasonal shift, reminding residents of the cozy, damp embrace of winter.

December Average Humidity in Calw

This chart illustrates the average monthly humidity levels in Calw, 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 Calw

In Calw, Germany, the UV Index experiences a notable shift as the year comes to a close. Starting at a moderate level of 3 in February, it peaks during the summer months with values of 9 in June and July, indicating very high exposure risk. As autumn sets in, the index gradually decreases, reflecting lower sun intensity, dropping to 2 by November. Finally, December sees the UV Index fall to its annual low of 1, categorizing it as low exposure with a burn time of 45 minutes. This trend highlights the seasonal variation in UV exposure, suggesting that winter is a great time to enjoy outdoor activities without significant sunburn risk. For more detailed information, visit Calw UV Index.

Maximum UV Index Levels in Calw for December

The chart shows the monthly maximum UV Index (UVI) for Calw 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Calw 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 Calw

December in Calw, Germany, sees a gentle decline in sunlight, with 147 hours gracing the month. This marks a noticeable drop from the vibrant heights of summer, where July enjoys a peak of 411 hours, signaling a clear seasonal shift. As the year progresses from the bright embrace of spring and the long days of summer, daylight hours steadily decrease, creating a cozy atmosphere as winter sets in. The contrast is particularly striking when juxtaposed with the 381 hours of May sunshine, reflecting the region's transition into the darker season. While December may not bask in the same luminosity as earlier months, the soft winter sun still casts a serene glow over the charming streets of Calw.

Monthly Sunshine Duration in Calw: December Highlighted

The December sunshine duration represents the total number of hours Calw 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.
JanFebMarAprMayJunJulAugSepOctNovDec132h205h279h346h381h390h411h377h318h263h194h147h
Data source: Calw December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Calw During December

In Calw, Germany, the likelihood of sunny weather sees notable fluctuations throughout the year, with December being one of the cloudier months. At just 19%, the chance of sunshine dips significantly as winter settles in, reflecting a trend of decreasing sun exposure from the vibrant days of April to the muted light of late fall. While the early months of the year, particularly February and March, offer a modest uptick in sunshine, December stands out for its chill and limited bright spells, marking it as a time for cozy indoor gatherings rather than outdoor sun-soaked adventures.

Percentage of Sunny Days in December in Calw

The chart illustrates the percentage of sunny days in Calw 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 Calw experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%40%41%47%31%31%37%34%46%34%26%19%
Data source: Calw December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Calw in December

In Calw, Germany, the shifting daylight hours throughout the year create a captivating seasonal rhythm. December, with its shortened 8 hours of daylight, mirrors January's similar constraints, signaling the depths of winter when the sun barely rises above the horizon. As the calendar progresses towards spring, daylight gradually lengthens, with March enjoying 11 hours, a marked increase that hints at the awakening of nature. This trend continues into the vibrant summer months, where June peaks at a glorious 16 hours of daylight, allowing for ample time to relish the outdoors. However, as summer fades into autumn, daylight begins to wane again, dropping to 12 hours in September and tapering down to 8 hours once more by December. This annual cycle not only illustrates the beauty of each season but also emphasizes the importance of light in shaping daily life in Calw.

Average Daylight Hours in Calw for December

The chart illustrates the variation in daylight duration in Calw throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 45m10h 10m11h 55m13h 43m15h 17m16h 5m15h 39m14h 16m12h 32m10h 44m9h 9m8h 18m
Data source: Calw daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Calw

In Calw, Germany, the December winds offer a gentle embrace, with an average speed of 3.1 m/s (7 mph), reflecting a return to briskness as the year draws to a close. This uptick in wind speed after a mellow autumn hints at the seasonal shift, as colder months approach. Notably, December’s winds are stronger compared to the preceding months, which generally hovered around 2.5 to 2.6 m/s. This seasonal variation, peaking after October's stillness, embodies the dance of nature in Calw, where winter’s chill brings refreshing gusts that invigorate the landscape and signal the onset of the colder season.

Average December Wind Speed in Calw

The chart displays monthly wind speed patterns in Calw, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.53.03.02.73.62.12.32.52.02.62.53.1 m/s
Data source: Calw December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Calw Compares to Other Months

The weather in Calw 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 Calw and find detailed weather information for every month.

In December, temperatures range from a minimum of -10°C (15°F) to a maximum of 13°C (56°F), with an average temperature of 3°C (37°F). The month sees significant precipitation, totaling 123 mm (4.8 in) across 18 days, while humidity remains high at 91%. In contrast, January experiences colder temperatures, with minimums dropping to -21°C (-6°F) and an average of 1°C (34°F), although the maximum remains the same at 13°C (56°F). Precipitation decreases to 92 mm (3.6 in) over 13 days, but humidity stays consistent at 91%. For more detailed information, check Calw weather in January.

December weather is characterized by milder temperatures compared to February, with a minimum of -10°C (15°F) and an average of 3°C (37°F), peaking at 13°C (56°F). This month sees more precipitation, averaging 123 mm (4.8 in) over 18 days, alongside a high humidity level of 91%. In contrast, February experiences colder minimum temperatures dipping to -18°C (1°F), although it has a slightly higher maximum of 19°C (67°F) and the same average temperature of 3°C (38°F). Precipitation decreases to 83 mm (3.3 in) over only 11 days, with a humidity level of 89%. For more details, check out Calw weather in February.

December and March present quite different weather patterns, despite being winter months. In December, temperatures range from a chilly minimum of -10°C (15°F) to a mild maximum of 13°C (56°F), with an average of 3°C (37°F). The month experiences significant precipitation, totaling 123 mm (4.8 in) over 18 days, and a high humidity level of 91%. In contrast, March sees a broader temperature range, with a minimum of -19°C (-2°F) and a maximum of 22°C (71°F), averaging around 5°C (42°F). This month also has slightly less precipitation at 99 mm (3.9 in) across 15 days, and humidity is somewhat lower at 87%. For more detailed insights, you can visit Calw weather in March.

December and April present stark contrasts in weather patterns. December's temperatures range from a chilly minimum of -10°C (15°F) to a maximum of 13°C (56°F), with an average hovering around 3°C (37°F). In contrast, April enjoys a milder climate, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 26°C (79°F) and an average of 9°C (49°F). Precipitation is considerably higher in December, totaling 123 mm (4.8 in) over 18 days, compared to April's 52 mm (2.0 in) over just 9 days. Additionally, while December boasts a humidity level of 91%, April is slightly less humid at 83%, suggesting a more comfortable atmosphere. For more details on the unique weather conditions of April, visit Calw weather in April.

December weather is characterized by much colder temperatures, with averages around 3°C (37°F) and nighttime lows dipping as low as -10°C (15°F). This month experiences significant precipitation, with 123 mm (4.8 in) falling over about 18 days, and the humidity levels remain quite high at 91%. In contrast, May brings a noticeable warm-up, with average temperatures reaching 13°C (55°F) and highs soaring to 29°C (85°F). Precipitation in May is slightly lower at 112 mm (4.4 in) over 16 days, and humidity decreases to 79%. For more detailed insights, visit Calw weather in May.

December and June present stark contrasts in weather characteristics. December experiences significantly colder temperatures, with lows reaching -10°C (15°F) and an average of just 3°C (37°F), compared to June’s milder temperatures that range from a minimum of 5°C (41°F) to an average of 18°C (65°F) and highs soaring up to 33°C (91°F). Precipitation levels are similar, with December receiving 123 mm (4.8 in) over 18 days, while June has slightly less at 114 mm (4.5 in) across 14 days. Humidity is notably higher in December at 91%, compared to June's 82%, contributing to the chilly feel of the winter month. For those looking for a deeper understanding of June weather, check out Calw weather in June.

December weather typically features much colder temperatures, with nighttime lows plunging to -10°C (15°F) and a daily average around 3°C (37°F). In contrast, July enjoys a much warmer climate, where temperatures range from a minimum of 8°C (46°F) to a maximum of 34°C (94°F), averaging 19°C (66°F). Precipitation levels in December are slightly higher, with 123 mm (4.8 in) over 18 days, compared to 107 mm (4.2 in) during 14 days in July. Furthermore, December’s humidity reaches a peak of 91%, providing a stark contrast to July’s lower humidity of 83%. For more details on July weather specifics, visit Calw weather in July.

The weather in December contrasts sharply with that of August. December is marked by colder temperatures, with minimums dropping to -10°C (15°F) and an average temperature of just 3°C (37°F), while August enjoys milder weather, featuring minimums of 5°C (42°F) and an average of 19°C (66°F). Additionally, December experiences more precipitation, totaling 123 mm (4.8 in) over 18 days, compared to August's 111 mm (4.4 in) over 16 days. Humidity levels are also higher in December at 91%, compared to 84% in August. For more detailed insights, you can check Calw weather in August.

In December, temperatures experience a stark drop, with minimums reaching -10°C (15°F) and an average around 3°C (37°F), contrasting sharply with September's milder climate where temperatures range from a minimum of 1°C (34°F) to a comfortable average of 14°C (58°F). While December is characterized by higher humidity levels at 91% and significant precipitation of 123 mm (4.8 in) over 18 days, September enjoys less rainfall at 65 mm (2.6 in), spread across 12 days, and slightly lower humidity at 85%. The transition from September's warm and inviting atmosphere to December's chilly and damp conditions marks a notable change in weather patterns, making September a more favorable month for outdoor activities. For a detailed look at September's weather, you can refer to Calw weather in September.

December weather presents a stark contrast to that of October. While October boasts milder temperatures with a minimum of -1°C (30°F) and a pleasant average of 10°C (51°F), December's chill sets in with lows dropping to -10°C (15°F) and an average of just 3°C (37°F). Furthermore, October experiences less precipitation, measuring 86 mm (3.4 in) over about 13 days, compared to December's wetter conditions, which accumulate 123 mm (4.8 in) across 18 days. Humidity levels are quite similar, with October at 88% and December slightly higher at 91%. For a closer look at October weather, you can visit Calw weather in October.

December weather presents a notable shift compared to November, with significantly colder temperatures; December's minimum drops to -10°C (15°F) compared to November's milder -4°C (25°F). The average temperature also declines from 5°C (41°F) in November to just 3°C (37°F) in December, while the maximum temperature in December is capped at 13°C (56°F), a stark contrast to November's peak of 21°C (70°F). Additionally, December experiences increased precipitation, amounting to 123 mm (4.8 in) over 18 days, compared to November's 62 mm (2.4 in) over 11 days. Humidity levels are slightly higher in December at 91%, compared to November's 89%. For a detailed look at November weather, you can visit Calw weather in November.

Compare Calw's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Calw

As December blankets Calw in chilly temperatures and high humidity, the weather stands in stark contrast to the milder months preceding it. With an average temperature around 3°C, the cold sets in, inviting a shift in both attire and activities. The month is marked by frequent precipitation, averaging 18 days of rain, which adds to the overall damp atmosphere. This combination of cold temperatures and elevated humidity means that December is not just a time for holiday festivities but also a season that brings a certain cozy charm, making it an ideal time to appreciate the beauty of winter. For a deeper look into the distinct characteristics of Calw's climate throughout the year, visit Calw Climate.