December Weather in Trier, Germany

Last updated: February 26, 2025

In Trier, Germany, December presents a chill in the air with an average temperature of 3°C (38°F), fluctuating between a maximum of 14°C (57°F) and a biting minimum of -5°C (22°F). This month is characterized by high humidity levels at 93%, creating a crisp atmosphere. Rainfall is frequent, with 135 mm (5.3 in) of precipitation spread across 20 days. As the holiday season approaches, the weather transforms the city into a picturesque winter landscape, inviting both residents and visitors to embrace the charm of this historic locale.

December Temperature in Trier

In December, Trier, Germany experiences a notable transition into winter, with temperatures reflecting the chill of the season. The month begins with a minimum temperature of -5°C (22°F), while the average hovers around 3°C (38°F), providing a stark contrast to the brisk autumn months. As December progresses, the maximum temperature reaches a modest 14°C (57°F), offering brief glimpses of warmth amid the cold. This month marks a drop in overall temperatures compared to November, emphasizing the advent of winter. Capturing the essence of the holiday season, December in Trier combines cool weather with festive cheer, inviting residents and visitors alike to embrace the winter wonderland.

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

The chart illustrates December temperature patterns in Trier, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec353842495564656558514138
Data source: Temperature data for Trier 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 Trier

December marks a significant shift in precipitation trends for Trier, Germany, as it experiences the highest rainfall of the year at 135 mm (5.3 in) over 20 days. This stark increase from the milder, drier months of summer and autumn highlights the transition into winter, where the city often grapples with frequent rainfall compared to the 9 to 15 days seen earlier in the year. While months like April and August offer a respite with lower totals, December's damp chill serves as a reminder of nature's contrast, with nearly double the average rainfall of previous winter months. Thus, as the year draws to a close, Trier transforms into a wetter landscape, inviting reflections on the beauty and challenges of its seasonal cycles.

December Precipitation Trends in Trier

The chart displays monthly precipitation patterns in Trier, 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.
JanFebMarAprMayJunJulAugSepOctNovDec7982944482807065647871135
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Trier

In Trier, Germany, December marks the peak of humidity for the year at an impressive 93%. This increase in moisture is part of a broader trend observed through the colder months, where humidity consistently rises from a relatively comfortable 81% in May to the winter's high in December. As the seasons shift from summer to fall, the humidity levels tend to fluctuate but remain notably elevated, with November at 91% and January following closely at 91%. Overall, the data suggests a distinctive pattern: as daylight shortens and temperatures drop, the air becomes increasingly saturated, enveloping Trier in a damp chill that is characteristic of its winters.

December Average Humidity in Trier

This chart illustrates the average monthly humidity levels in Trier, 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.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%88%84%81%82%82%80%83%89%91%93%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Trier

In December, Trier experiences a dramatic decrease in UV Index levels, with a reading of just 1, categorizing exposure as low. This indicates a significant drop from the previous months, when levels peaked at 9 in June and 8 in July, both classified as very high. As a result, residents and visitors can enjoy outdoor activities with minimal risk of sunburn, affording a burn time of 45 minutes. This trend of lower UV exposure in winter months continues, making December an ideal time to engage in leisurely outdoor pursuits without the worry of intense sun damage. For more detailed information on UV levels throughout the year, check out Trier UV Index.

Maximum UV Index Levels in Trier for December

The chart shows the monthly maximum UV Index (UVI) for Trier 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.
JanFebMarAprMayJunJulAugSepOctNovDec234689876421
Data source: Trier 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 Trier

Trier, Germany, experiences a clear transition in sunlight as the year unfolds, with December bringing a modest 116 hours of sunshine. This marks a notable dip from the vibrant daylight of earlier months, particularly when compared to June and July, which bask in over 400 hours of sun each. The ascent in sunlight begins as early as January, peaking in May and June before gradually tapering off as winter approaches. The trend highlights a characteristic ebb and flow of natural light, offering a poignant reminder of the seasons' rhythms. While December might feel a bit lacking in brightness, it sets the stage for the cozy charm of winter festivities, inviting residents and visitors to embrace the beauty of Trier's rich history and culture under the soft hues of its winter sun.

Monthly Sunshine Duration in Trier: December Highlighted

The December sunshine duration represents the total number of hours Trier 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.
JanFebMarAprMayJunJulAugSepOctNovDec107h196h258h349h387h407h414h385h315h238h171h116h
Data source: Trier December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Trier During December

In Trier, Germany, the likelihood of sunny weather dips significantly in December, with only an 11% chance of sunshine. This suggests a stark contrast to the brighter months of the year. As we move from January through November, there's a gradual increase in sunny days peaking in March and April at 42% and 47%, respectively, followed by a noticeable decline as winter settles in. With December’s gloomy average falling just above January’s low point, it's clear that the festive season in Trier is more likely to be blanketed in clouds than basked in sun, reminding us to prepare for a cozy winter atmosphere rather than bright holiday cheer.

Percentage of Sunny Days in December in Trier

The chart illustrates the percentage of sunny days in Trier 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 Trier experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec9%32%42%47%30%31%35%28%40%28%17%11%
Data source: Trier December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Trier in December

In Trier, Germany, the seasonal ebb and flow of daylight casts a captivating rhythm throughout the year. December, with its 8 hours of daylight, marks the return to shorter days, reminiscent of January's similar duration. As winter settles in, the sun hibernates, giving way to the coziness of longer evenings. However, as the calendar turns towards spring, daylight steadily increases, peaking in June with an impressive 16 hours. This progressive lengthening continues into the vibrant summer months of July and August, before gradually tapering off again in the fall. Thus, the interplay between light and darkness in Trier not only highlights seasonal changes but also invites residents and visitors to embrace the beauty of each unique month.

Average Daylight Hours in Trier for December

The chart illustrates the variation in daylight duration in Trier throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 39m10h 6m11h 55m13h 46m15h 23m16h 12m15h 46m14h 20m12h 33m10h 42m9h 3m8h 11m
Data source: Trier daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Trier

As December settles over Trier, Germany, the average wind speed gently whispers at 3.2 m/s (7 mph), offering a slight increase from the calmer months of late autumn. This subtle rise signifies a transition as the year draws to a close, contrasting with the summer's light breezes, where June's winds measured only 2.4 m/s (5 mph). Throughout the colder months, the winds fluctuate around a steady 3–4 m/s, peaking in May before tapering off in the warmer summer. Interestingly, each downward trend in the spring months leads into a modest resurgence in December, showcasing nature's rhythmic ebb and flow as it ushers in the winter chill.

Average December Wind Speed in Trier

The chart displays monthly wind speed patterns in Trier, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.73.63.43.14.02.42.72.92.33.32.83.2 m/s
Data source: Trier December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Trier Compares to Other Months

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

December tends to be milder than January, with average temperatures hovering around 3°C (38°F), while January sees a drop to an average of just 2°C (35°F). The minimum temperatures in December can dip to -5°C (22°F), compared to January's colder lows of -12°C (10°F). Additionally, December is wetter, with 135 mm (5.3 in) of precipitation over 20 days, whereas January experiences less precipitation at 79 mm (3.1 in) spread over only 12 days. Despite a slight decrease in overall humidity, the cold months maintain a balmy feel with humidity levels around 91% in January and 93% in December. For a detailed look at the weather specifics, you can visit Trier weather in January.

December and February present distinct weather patterns despite sharing similar average temperatures. In December, temperatures range from a minimum of -5°C (22°F) to a maximum of 14°C (57°F), accompanied by high humidity levels at 93% and significant precipitation of 135 mm (5.3 in) over 20 days. In contrast, February tends to be colder, with minimums dropping to -11°C (13°F) but maximums reaching up to 19°C (66°F). Precipitation in February is noticeably lower at 82 mm (3.2 in) over just 12 days, and humidity sits at a comfortable 90%. For detailed insights into the weather specifics for February, you can visit Trier weather in February.

December weather tends to be quite chilly, with average temperatures hovering around 3°C (38°F), dipping as low as -5°C (22°F) and reaching a maximum of 14°C (57°F). The month is characterized by high humidity levels at 93% and frequent precipitation, totaling 135 mm (5.3 in) over approximately 20 days.

In contrast, March experiences slightly milder conditions, with an average temperature of 6°C (42°F), ranging from a minimum of -11°C (12°F) to a warmer maximum of 22°C (72°F). Although March has lower total precipitation at 94 mm (3.7 in) spread over about 15 days, the humidity level is somewhat lower at 88%. This transition from December to March reflects the gradual warming and changing weather patterns typical of early spring. For more details about March weather, you can visit Trier weather in March.

December weather contrasts sharply with that of April. In December, temperatures range from a chilly minimum of -5°C (22°F) to a mild maximum of 14°C (57°F), with an average temperature of 3°C (38°F). The month is marked by significant precipitation, totaling 135 mm (5.3 in) over 20 days, and high humidity at 93%. In contrast, April sees a more temperate climate, with a minimum of -3°C (26°F) and a maximum reaching up to 26°C (79°F), resulting in an average of 9°C (49°F). This spring month experiences considerably less rainfall—only 44 mm (1.7 in) over 9 days—and lower humidity at 84%. For more details on April's weather, you can check Trier weather in April.

December weather often presents a stark contrast to that of May. With average temperatures ranging from a chilly -5°C (22°F) to a relatively mild 14°C (57°F), December experiences higher humidity levels at 93% and significant precipitation of 135 mm (5.3 in) spread over 20 days. In contrast, May showcases a much warmer climate, with minimum temperatures around 0°C (32°F) and maximums soaring to 31°C (88°F), averaging at 13°C (55°F). Additionally, May's precipitation is lighter at 82 mm (3.2 in) over just 13 days and features lower humidity at 81%. To explore more about the delightful weather in May, check out Trier weather in May.

December and June present stark contrasts in weather. In December, temperatures are colder, ranging from a minimum of -5°C (22°F) to a maximum of 14°C (57°F), with an average of just 3°C (38°F). The month is characterized by high humidity levels at 93% and considerable precipitation, totaling 135 mm (5.3 in) over about 20 days. In contrast, June enjoys milder and warmer conditions, with temperatures varying from a minimum of 6°C (44°F) to a maximum of 33°C (92°F), averaging 18°C (64°F). The summer month sees lower precipitation levels of 80 mm (3.2 in) over 12 days and a slightly lower humidity of 82%. For more specifics on June weather, check out Trier weather in June.

When comparing the weather in December and July, it's clear that these months present stark contrasts. December experiences colder temperatures, with averages around 3°C (38°F) and lows dropping to -5°C (22°F), all accompanied by high humidity levels of 93%. It also sees more precipitation, with about 135 mm (5.3 in) spread over 20 days. In contrast, July boasts much warmer weather, showcasing average temperatures of 19°C (66°F) and highs soaring to 37°C (100°F), alongside significantly less rainfall—70 mm (2.8 in) over 11 days and lower humidity at 82%. For more details, you can check out Trier weather in July.

Comparing the weather of December and August reveals stark contrasts in temperature, precipitation, and humidity. In December, temperatures range from a chilly -5°C (22°F) to a moderate 14°C (57°F), with an average of 3°C (38°F). This month experiences high humidity at 93% and significant precipitation, averaging 135 mm (5.3 in) over 20 days. In contrast, August boasts much warmer temperatures, with a minimum of 6°C (43°F), an average of 18°C (65°F), and a maximum reaching 34°C (93°F). Precipitation is also lower in August at 65 mm (2.5 in) across just 12 days, and humidity levels drop to 80%. For more insights into August's climate specifics, you can check Trier weather in August.

In December, the weather is considerably colder, with average temperatures ranging from a minimum of -5°C (22°F) to a maximum of 14°C (57°F). The month experiences high levels of precipitation, totaling 135 mm (5.3 in) over roughly 20 days, combined with a humidity level of 93%. In contrast, September enjoys milder temperatures, with averages between 3°C (37°F) and 31°C (88°F), and significantly less precipitation at 63 mm (2.5 in) over just 9 days. The humidity in September is also lower at 83%, making it feel more comfortable. For more details on the weather patterns, you can refer to Trier weather in September.

In comparing the weather of December and October, we see significant differences in temperature and precipitation. December is much colder, with average temperatures ranging from a minimum of -5°C (22°F) to a maximum of 14°C (57°F), while October presents a milder climate with averages between 0°C (32°F) and 24°C (76°F). Additionally, December experiences higher precipitation, with 135 mm (5.3 in) over 20 days compared to October's 78 mm (3.1 in) over 13 days. The humidity in December is also slightly higher at 93%, compared to October's 89%. For more details, you can check the specifics of October's weather by visiting Trier weather in October.

In comparing the weather of December and November, December tends to be slightly colder, with an average temperature of 3°C (38°F) compared to November's 5°C (42°F). While both months experience chilly minimum temperatures, December's minimum can drop to -5°C (22°F), just a notch lower than November’s -4°C (25°F). Notably, December is significantly wetter, receiving 135 mm (5.3 in) of precipitation over 20 days, whereas November has only 71 mm (2.8 in) over 12 days. Humidity remains high in both months, with December at 93% and November at 91%. For more detailed information, you can check Trier weather in November.

Compare Trier's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Trier

As December settles in Trier, the weather takes a notable turn with a crisp chill in the air. Unlike the milder months, December experiences a significant drop in temperatures, often dipping down to minus five degrees Celsius, creating a wintery ambiance. Precipitation becomes more frequent, with around 20 days of rain, contributing to a humid environment that can reach 93%. This cooler, wetter climate stands in stark contrast to the warmer, drier days of earlier months, inviting a unique blend of seasonal charm and cozy indoor activities. For a deeper insight into the annual weather patterns, explore the detailed Trier Climate.