December Weather in Liege, Belgium

Last updated: August 21, 2025

December in Liège, Belgium is characterized by chilly temperatures and frequent rainfall, creating a captivating winter atmosphere. With maximum temperatures reaching 15°C (59°F) and dipping as low as -5°C (23°F), the average sits comfortably at 5°C (41°F). The month is quite wet, receiving around 106 mm (4.2 in) of precipitation over 19 days, contributing to a high humidity level of 92%. Visitors can expect a predominantly cool and damp experience, making it ideal for cozy indoor activities and exploring the city's charming holiday festivities.

December Temperature in Liege

In Liège, Belgium, December brings a noticeable chill as temperatures begin to dip, with minima averaging around -5°C (23°F). Residents can expect daily averages of 5°C (41°F), culminating in maximums that reach up to 15°C (59°F). This month marks the transition into winter, reflecting a distinct drop from the milder temperatures of November, which average about 7°C (45°F). As the year draws to a close, the city prepares for cold weather, making this an ideal time for cozy indoor activities and festive celebrations. While the lows may feel biting, the mild daytime highs offer a crisp but manageable escape to explore the beautiful wintery landscape before the depths of winter set in.

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

The chart illustrates December temperature patterns in Liege, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Liege, 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).
JanFebMarAprMayJunJulAugSepOctNovDec384145505665666659534441
Data source: Temperature data for Liege 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 Liege

December brings a significant increase in precipitation to Liège, Belgium, marking it as the wettest month of the year with 106 mm (4.2 in) of rain. This month experiences the highest number of rainy days as well, totaling 19 days, which contributes to the festive ambiance often accompanied by the chill of winter. The trend reveals a shift from the relatively dry months of April and November, where rainfall dips to 39 mm (1.5 in) and 58 mm (2.3 in), respectively. As the year wraps up, the spike in December precipitation sets a reflective tone, often reminding residents to brace for long winter nights that come with increased dampness.

December Precipitation Trends in Liege

The chart displays monthly precipitation patterns in Liege, 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 Liege, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec7176803965888284658758106
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Liege

In Liege, Belgium, December usher in a noticeable uptick in humidity, reaching 92%—the highest of the year. This month's humidity marks a slight increase from November's 91%, creating a trend where the winter months tend to maintain elevated moisture levels. Following a gradual decline from the earlier summer months, where humidity was at its lowest in July and August (around 72% and 71%, respectively), the transition into autumn brings rising humidity back to the fore. With cold temperatures settling in, the consistent high humidity during December contributes to a damp, chilly atmosphere, enveloping the city in a crisp, wintry embrace as the year draws to a close.

December Average Humidity in Liege

This chart illustrates the average monthly humidity levels in Liege, 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 Liege is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Liege

In December, Liege experiences a notably low UV Index of 1, indicating minimal risk of harm from unprotected sun exposure, with a safe burn time of 45 minutes. This trend of low UV levels not only reflects the winter season's shorter days and often overcast skies but also highlights a significant drop from the summer peak, where July and June recorded a very high UV Index of 8. Throughout the year, the UV Index fluctuates, rising to moderate levels in spring and early summer before tapering off again as the year winds down. December stands out as a month to enjoy the winter scenery without the concern of sunburn, making it an ideal time for cozy outdoor activities. For more detailed information, visit Liege UV Index.

Maximum UV Index Levels in Liege for December

The chart shows the monthly maximum UV Index (UVI) for Liege 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 Liege typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Liege 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 Liege

December in Liège may wrap up the year with 134 hours of sunshine, but it reflects a gradual decline from the lively brightness of summer, where July leads with 407 hours. As the seasons shift, we see a steady transition from May's vibrant 395 hours to the more muted light of winter. Interestingly, while December's sunshine may be limited, it still surpasses the dreary January, which starts the year with only 120 hours. This seasonal ebb and flow illustrates the beauty of Liège's weather, where even the chill of December carries a flicker of warmth from the sun's rays.

Monthly Sunshine Duration in Liege: December Highlighted

The December sunshine duration represents the total number of hours Liege 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.
JanFebMarAprMayJunJulAugSepOctNovDec120h204h270h342h395h395h407h380h318h241h190h134h
Data source: Liege December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Liege During December

In Liege, Belgium, December typically heralds the onset of darker, colder days, with a notable decrease in sunshine, as only a 15% chance of sunny weather graces this month. This decline in sunlight follows a gradual upward trend from January's meager 9%, peaking in the spring months of March and April, where chances of sunshine flirt with the 39% to 45% range. As the year winds down, November provides a slight reprieve with a 26% chance, but December firmly settles into winter's grasp, reminiscent of the winter months ahead. Thus, while the arrival of December marks a stark contrast with its brighter predecessors, it reminds us that sunshine is a rare gem in Belgium's winter landscape.

Percentage of Sunny Days in December in Liege

The chart illustrates the percentage of sunny days in Liege 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 Liege experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec9%32%39%45%31%32%33%30%37%30%26%15%
Data source: Liege December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Liege in December

In Liege, Belgium, the daylight duration experiences a rhythmic transformation throughout the year, peaking in the vibrant summer months. By December, the city sees about 8 hours of daylight, mirroring November's brief luminosity, as winter approaches and the days grow shorter. Throughout the year, daylight starts at a modest 8 hours in January, gradually increasing to a sun-soaked 16 hours in June. Following this zenith, the light gently recedes, with July and August still offering ample brightness before transitioning back to shorter days in the autumn months. This annual cycle not only marks the passage of seasons but also sets the tone for the city's activities, from the long, lively days of summer to the cozy, illuminated evenings of winter.

Average Daylight Hours in Liege for December

The chart illustrates the variation in daylight duration in Liege throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 29m10h 1m11h 55m13h 51m15h 32m16h 25m15h 57m14h 26m12h 34m10h 38m8h 55m8h
Data source: Liege daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Liege

In December, Liege experiences a refreshing shift in wind dynamics, with an average speed of 4.1 m/s (9 mph), slightly lower than the gusty October but still indicative of the season's chill. This time of year marks a transition from the milder winds of autumn, showcasing a gradual decline in speeds as the cold sets in. Notably, the winds in December are more robust than those in the summer months, reflecting the region's characteristic winter breezes. As the year concludes, Liege's winter winds serve as a reminder of nature's rhythm, preparing the city for the cozy embrace of the holiday season.

Average December Wind Speed in Liege

The chart displays monthly wind speed patterns in Liege, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.43.93.14.32.73.33.32.84.33.34.1 m/s
Data source: Liege December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Liege Compares to Other Months

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

December and January weather display a noticeable shift, particularly in temperature and precipitation patterns. In December, average temperatures hover around 5°C (41°F), with a minimum of -5°C (23°F) and a maximum of 15°C (59°F), while January sees a slight drop, with averages around 3°C (38°F) and extremes ranging from -8°C (18°F) to 13°C (57°F). Additionally, December experiences more precipitation, totaling 106 mm (4.2 in) over 19 days, compared to January's 71 mm (2.8 in) over just 13 days. Humidity levels remain similar, with December at 92% and January at 91%. For more detailed insights, check out Liege weather in January.

In December, the weather is typically cold, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 15°C (59°F), and an average of 5°C (41°F). This month experiences significant precipitation, totaling 106 mm (4.2 in) over approximately 19 days, along with high humidity at 92%.

Conversely, February sees slightly colder conditions with a minimum temperature of -9°C (16°F), while the maximum can reach up to 20°C (69°F), maintaining an average of 5°C (41°F) similar to December. Precipitation decreases to 76 mm (3.0 in) over about 12 days, and humidity drops slightly to 90%.

For more detailed information about the weather in Liege during February, please visit Liege weather in February.

December and March present distinctly different weather conditions. In December, temperatures range from a chilly -5°C (23°F) to a milder 15°C (59°F), with an average of 5°C (41°F). The month experiences significant precipitation with 106 mm (4.2 in) over 19 days, leading to high humidity levels of 92%. In contrast, March brings slightly colder temperatures with a minimum of -9°C (16°F) and a maximum of 23°C (74°F), averaging 7°C (45°F). While precipitation decreases to 80 mm (3.1 in) across 15 days, humidity also drops to a more comfortable 87%. For more details on this month's climate, you can check Liege weather in March.

In December, the weather is considerably colder, with temperatures ranging from a chilly -5°C (23°F) to a maximum of 15°C (59°F). This month also experiences high precipitation, with 106 mm (4.2 in) falling over 19 days, contributing to a humidity level of 92%. In contrast, April brings much milder temperatures, with a minimum of -4°C (25°F) and maxing out at 28°C (82°F). Alongside lower precipitation at 39 mm (1.5 in) over just 8 days, the humidity drops to a more comfortable 84%. For a more detailed look at the weather in April, you can visit Liege weather in April.

December weather is characterized by colder temperatures, with a minimum of -5°C (23°F) and an average of 5°C (41°F), while May experiences a significantly warmer climate, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 31°C (89°F) and an average of 14°C (57°F). Precipitation levels are higher in December, totaling 106 mm (4.2 in) over 19 days, compared to May's 65 mm (2.5 in) over 13 days. Additionally, December has a much higher humidity level at 92%, while May's humidity is more comfortable at 77%. For a deeper understanding of May's climate, check out Liege weather in May.

December and June present a stark contrast in weather conditions. In December, temperatures can dip to a minimum of -5°C (23°F), with an average of 5°C (41°F) and a maximum reaching only 15°C (59°F). The month is quite wet, receiving 106 mm (4.2 in) of precipitation over 19 days, coupled with high humidity levels at 92%. In contrast, June offers much milder temperatures, with a minimum of 7°C (45°F), an average of 18°C (65°F), and a maximum that can soar to 33°C (92°F). This month is generally drier, with only 88 mm (3.5 in) of precipitation over 12 days, and a notably lower humidity of 74%. For more detailed insights about the climate during this month, you can explore Liege weather in June.

The weather in December contrasts sharply with that of July. In December, temperatures range from a chilly -5°C (23°F) to a mild 15°C (59°F), with an average of 5°C (41°F). This month also sees considerable precipitation, totaling 106 mm (4.2 in) over 19 days, accompanied by high humidity at 92%. In contrast, July experiences much warmer temperatures, with a minimum of 8°C (46°F) and a maximum reaching a scorching 40°C (104°F). The average temperature is a pleasant 19°C (66°F), but it also has less rainfall, amounting to 82 mm (3.2 in) over just 11 days and lower humidity at 72%. For a closer look at what to expect, check out Liege weather in July.

December and August present stark contrasts in weather. In December, the temperatures range from a chilly -5°C (23°F) to a mild 15°C (59°F), with an average of 5°C (41°F), creating a cold atmosphere accompanied by high humidity at 92%. This month sees significant precipitation, totaling 106 mm (4.2 in) over 19 days, further enhancing the wintry feel. In contrast, August features much warmer conditions, with temperatures soaring from a minimum of 7°C (44°F) to a sweltering maximum of 36°C (97°F) and an average of 19°C (66°F). The humidity is notably lower at 71%, and although it experiences some rainfall, the total is less at 84 mm (3.3 in) over 15 days. For more details, you can check out Liege weather in August.

When comparing the weather in December and September, notable differences emerge. December experiences much colder temperatures, with a minimum of -5°C (23°F) and an average around 5°C (41°F), while September has milder conditions, starting at a minimum of 3°C (37°F) and averaging a comfortable 15°C (60°F). The maximum temperatures also showcase a stark contrast; December peaks at 15°C (59°F), whereas September can soar to 34°C (93°F). In terms of precipitation, December sees greater rainfall at 106 mm (4.2 in) over 19 days, compared to 65 mm (2.5 in) over just 10 days in September. Additionally, the humidity is higher in December at 92%, compared to 81% in September. For more details on September weather specifically, you can check Liege weather in September.

When comparing the weather in December and October, notable differences emerge in temperature and precipitation. In December, temperatures can drop as low as -5°C (23°F), with an average of 5°C (41°F) and a high of 15°C (59°F), reflecting a distinct chill compared to October's milder conditions, where temperatures range from a minimum of 1°C (34°F) to a maximum of 25°C (78°F), with an average of 12°C (54°F). Additionally, December tends to be wetter, with 106 mm (4.2 in) of precipitation over 19 days, whereas October has 87 mm (3.4 in) of rain distributed across 13 days. The humidity also remains high in both months but is slightly elevated in December at 92%, compared to October's 88%. For more detailed information about the weather in October, you can visit Liege weather in October.

In comparing the weather conditions of November and December, we can see a noticeable shift. December tends to be colder, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 15°C (59°F), while November enjoys milder temperatures, peaking at 19°C (66°F) with a minimum of -4°C (25°F). Furthermore, December experiences significantly more precipitation, totaling 106 mm (4.2 in) over 19 days compared to November’s 58 mm (2.3 in) over just 11 days. Humidity levels remain quite similar, with December slightly higher at 92%, compared to November's 91%. For more detailed information on November's climate, you can check Liege weather in November.

Compare Liege's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Liege

As December unfolds in Liège, the weather takes on a distinctly wintry character that sets it apart from the milder months of the year. With a significant increase in precipitation, coupled with an average temperature that hovers around the chilly 5°C (41°F), this month brings about a transition into colder, wetter conditions. Unlike the drier autumn months, December experiences nearly 19 days of rainfall, and the high humidity levels at 92% make the air feel even colder. Overall, December in Liège offers a stark contrast to the other months, inviting visitors to bundle up and embrace the festive spirit. For more insights into how December aligns with the broader climate patterns, check out Liege Climate.