Last updated: August 21, 2025
In December, the weather in Luxembourg within the Schengen area presents a mix of chill and moisture. With temperatures ranging from a brisk -6°C (22°F) to a comfortable 14°C (58°F), it’s vital to prepare for fluctuating conditions. The average daily temperature hovers around 4°C (40°F), creating a crisp backdrop for the festive season. However, be mindful of the high humidity, reaching 93%, coupled with 19 days of precipitation that totals 118 mm (4.6 in). This month is characterized by a blend of dreary rain and cool breezes, making it an ideal time for cozy indoor activities and exploring the charming holiday markets.
In December, Luxembourg's temperatures reflect the chill of winter, with minimums around -6°C (22°F) and typical averages hovering near 4°C (40°F). As the month progresses, daytime highs can reach up to 14°C (58°F), indicating a gradual transition towards the more temperate climate of spring. This month marks a sharp contrast from the milder conditions of autumn, as temperatures drop significantly from November, where they averaged 6°C (43°F). The December climate invites cozy gatherings and festive celebrations, while the crisp air and occasional frost underscore the enchanting winter charm of the Schengen region.
December in Schengen, Luxembourg, stands out as the wettest month of the year, with a striking 118 mm (4.6 in) of precipitation over 19 days. This significant increase in rainfall compared to previous months highlights a trend towards a more dynamic winter climate. The average precipitation for earlier months hovers around 60 to 76 mm, making December’s total a notable spike. As the year winds down, it becomes clear that the transition into winter brings not only colder temperatures but also a much wetter atmosphere, inviting a reflective mood as the festive season unfolds amid frequent showers.
December in Schengen, Luxembourg, ushers in a notable rise in humidity, peaking at 93%—the highest level of the year. Following a steady increase from 89% in October and 91% in November, the air grows increasingly moist as winter settles in. This trend reflects the transition to the colder months, where the chill in the air often accompanies higher humidity levels, contrasting sharply with the drier conditions experienced in the spring and summer months. As temperatures drop, the combination of increased humidity and cooler weather can create a crisp, invigorating atmosphere, making December a uniquely refreshing time in this picturesque region.
In December, Schengen, Luxembourg experiences a UV Index of 1, categorized as low, which means sunburn is unlikely with a burn time of 45 minutes. This marks the lowest UV level of the year, following a gradual decline from the summer months where indices peaked at 9 in June. As the year progresses from bright and intense summer rays to the milder winter sun, it's crucial to note that while December offers minimal UV exposure, the importance of protection remains for those who spend extended time outdoors. For more detailed insights and real-time updates, you can check the Schengen UV Index.
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December in Schengen, Luxembourg, marks a gentle transition as daylight gradually dims, with the city basking in just 109 hours of sunshine. This is notably lower than the vibrant hours of sun enjoyed in the preceding months, which peak in mid-year with July having a remarkable 410 hours. The trend reveals a clear seasonal shift; after the glowing 348 hours in April and 383 hours in May, sunlight hours steadily decline, illustrating the typical retreat of daylight as winter approaches. This cyclical ebb and flow not only shapes the landscape but also invites locals and visitors alike to embrace the cozy atmosphere of winter festivities amidst the fading sun.
In Schengen, Luxembourg, December tends to be one of the cloudier months, with only a 13% chance of sunny weather. This marks a notable decline compared to the brighter days of early spring, when the sun shines more frequently, peaking at 51% in April. As winter sets in, the likelihood of clear skies drops significantly, following a similar trend observed in November, which boasts a mere 19% chance of sunshine. Throughout the year, the area experiences its most favorable sunny conditions in March and April, making December's limited sunlight a stark contrast. Thus, if you're hoping for a bright winter escape, it's wise to keep your expectations low for December's weather.
In Schengen, Luxembourg, December sees a return to the shortest daylight duration of the year, offering just 8 hours of sunlight. This trend illustrates the gradual decrease in daylight that begins in late autumn, peaking in November with 9 hours, before tapering off as winter sets in. The daylight hours start to lengthen again in the new year, with January also experiencing just 8 hours of daylight. However, a noticeable increase occurs in February, where the sun begins to assert itself with 10 hours of light, setting the stage for the longer days ahead in spring. This cyclical pattern of daylight duration not only marks the transition of seasons but also paints a vivid picture of the region's seasonal rhythm, inviting residents and visitors alike to appreciate the fleeting beauty of winter's twilight.
As December arrives in Schengen, Luxembourg, the wind begins to pick up slightly, averaging 3.4 m/s (or 8 mph), mirroring trends seen earlier in the year. Following a gradual decline in wind speed during the warmer months of June through September, which dipped to a calm 2.4 m/s, the arrival of winter brings a subtle resurgence in gusts. Notably, December experiences a wind speed similar to that of October, suggesting a consistent breeziness that carries into the end of the year. This pattern highlights the seasonal shifts in climate, as the lively winds of early spring and fall give way to the more temperate but still refreshing breaths of air during the holiday season.
Weather in Schengen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Schengen, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures range from a chilly minimum of -6°C (22°F) to a milder average of 4°C (40°F), peaking at a max of 14°C (58°F). The month is characterized by significant precipitation, totaling 118 mm (4.6 in) over 19 days, coupled with high humidity levels of 93%. In contrast, January sees cooler conditions with minimum temperatures dropping to -9°C (15°F) and an average of 2°C (36°F), peaking at 13°C (55°F). Precipitation decreases to 70 mm (2.8 in) over just 11 days, and humidity remains slightly lower at 91%. For a more detailed look at January weather, you can visit Schengen weather in January.
December and February present distinct weather characteristics despite their proximity in the winter season. In December, temperatures range from a minimum of -6°C (22°F) to a maximum of 14°C (58°F), with an average temperature of around 4°C (40°F). The month is quite wet, featuring approximately 118 mm (4.6 in) of precipitation over 19 days, and a high humidity level of 93%. In contrast, February sees slightly colder temperatures, with a minimum of -10°C (15°F) and a maximum of 19°C (66°F), maintaining the same average of 4°C (40°F). Precipitation decreases significantly to about 73 mm (2.9 in) over 12 days, with a humidity level of 90%. For more detailed insights about February weather, you can visit Schengen weather in February.
December weather features a wider temperature range, with minimums dipping to -6°C (22°F) and maximums reaching up to 14°C (58°F). The month is quite wet, experiencing 118 mm (4.6 in) of precipitation over 19 days, contributing to high humidity levels of 93%. In contrast, March typically has a slightly lower minimum temperature of -11°C (13°F) but an average maximum of 23°C (73°F), indicating a warming trend. Precipitation decreases to 75 mm (3.0 in) over 14 days, and humidity also drops to 88%. For those considering travel during this spring month, detailed weather information can be found at Schengen weather in March.
In comparing the weather conditions of December and April, notable differences emerge. December typically experiences much colder temperatures, ranging from a minimum of -6°C (22°F) to a maximum of 14°C (58°F), while April sees milder temperatures, with a minimum of -3°C (26°F) and a maximum rising to 27°C (80°F). Additionally, December is characterized by higher precipitation levels, recorded at 118 mm (4.6 in) over 19 days, compared to April's 40 mm (1.6 in) over just 9 days. The humidity is also higher in December at 93%, compared to April's 84%. Overall, December presents a chillier and wetter climate, while April ushers in warmth and reduced moisture. For more on April's weather, you can visit Schengen weather in April.
In December, temperatures can be quite chilly, ranging from a minimum of -6°C (22°F) to a maximum of 14°C (58°F), with an average temperature of around 4°C (40°F). The month is characterized by significant precipitation, totaling 118 mm (4.6 in) over approximately 19 days and a high humidity level of 93%, contributing to a damp and often crisp atmosphere.
In contrast, May ushers in a much warmer climate, with minimum temperatures starting at 0°C (33°F) and highs that can reach up to 31°C (88°F), creating a pleasant average temperature of 13°C (56°F). This month experiences less rainfall, with only 70 mm (2.8 in) over 12 days and lower humidity at 81%, providing a clearer and more comfortable environment for outdoor activities. For more detailed information, you can check Schengen weather in May.
December and June present starkly contrasting weather conditions. In December, temperatures range from a chilly -6°C (22°F) at night to a mild 14°C (58°F) during the day, with an average temperature of around 4°C (40°F). The month sees considerable precipitation, totaling 118 mm (4.6 in) over 19 days, and a humid atmosphere with humidity levels reaching 93%. In contrast, June offers a much warmer climate, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 34°C (94°F) and an average of 18°C (65°F). The precipitation is lower at 70 mm (2.7 in), spread across just 10 days, and humidity decreases to 82%. For those looking to explore the weather in June, more details can be found here: Schengen weather in June.
December and July present starkly contrasting weather conditions. In December, temperatures range from a chilly -6°C (22°F) at night to a mild 14°C (58°F) during the day, accompanied by high humidity at 93% and frequent precipitation on 19 days, accumulating to 118 mm (4.6 in). In contrast, July boasts significantly warmer temperatures, with nighttime lows of 8°C (47°F) and daytime highs reaching a scorching 38°C (101°F). The summer month also has lower precipitation, totaling 70 mm (2.8 in) over just 8 days, and a more comfortable humidity level of 82%. For those interested in more specifics about the July weather, you can check out Schengen weather in July.
December and August present strikingly contrasting weather patterns. In December, temperatures can dip as low as -6°C (22°F) and average around 4°C (40°F), with maximums reaching 14°C (58°F). This month is characterized by high humidity at 93% and significant precipitation of 118 mm (4.6 in) over 19 days, resulting in a chilly and damp atmosphere. In contrast, August enjoys milder temperatures with a minimum of 7°C (44°F), an average of 19°C (67°F), and peaks at 35°C (95°F). With only 59 mm (2.3 in) of rain spread across 12 days and lower humidity at 80%, August offers a warm and more pleasant environment. For more details on what to expect during August, you can visit Schengen weather in August.
When comparing the weather in December and September, we observe significant differences in temperature and precipitation. December experiences much colder temperatures, with an average of only 4°C (40°F), ranging from a minimum of -6°C (22°F) to a maximum of 14°C (58°F). In contrast, September boasts a warmer average of 15°C (59°F) and can reach highs of 32°C (89°F). Additionally, December tends to be wetter, with 118 mm (4.6 in) of precipitation spread over 19 days, compared to September's 61 mm (2.4 in) over just 9 days. While both months have high humidity, December's is slightly higher at 93% compared to September's 83%. For those looking for detailed climate insights, check out Schengen weather in September.
In comparing the weather of December and October, there are significant differences in temperature and precipitation. December experiences colder temperatures, with a minimum of -6°C (22°F) and an average of 4°C (40°F), while October enjoys milder conditions, with a minimum of 1°C (34°F) and an average of 11°C (52°F). Precipitation levels are also higher in December, totaling 118 mm (4.6 in) over 19 days, compared to October’s 76 mm (3.0 in) over just 12 days. Humidity is slightly higher in December at 93%, compared to October's 89%. These contrasts depict December as a colder and wetter month, making it feel much less comfortable than the more temperate October. For further details on October weather, visit Schengen weather in October.
In December, temperatures tend to drop further compared to November, with a minimum of -6°C (22°F) and an average of 4°C (40°F), contrasting with November's minimum of -3°C (26°F) and average of 6°C (43°F). Additionally, December experiences more precipitation, totaling 118 mm (4.6 in) over 19 days, compared to November's 70 mm (2.7 in) over 12 days. This increase in rainfall contributes to a slightly higher humidity level in December at 93%, while November remains at 91%. For more details on November weather, check out Schengen weather in November.
As December unfolds in Schengen, the weather takes on a distinctly cooler character compared to the milder months earlier in the year. Daytime temperatures hover around a chilly average of 4°C, occasionally peaking at a comfortable 14°C but more frequently dipping to much colder levels, with nighttime lows slipping to -6°C. This month is notably wetter, with 19 days of precipitation contributing to a total of 118 mm, which translates to a rather humid atmosphere of 93%. These chilly and damp conditions create a stark contrast to the more temperate climate experienced in preceding months, making December a time for cozy indoor activities and embracing the winter spirit. For more detailed insights into what the weather looks like throughout the year, check out Schengen Climate.