Last updated: August 21, 2025
January in Mondorf-les-Bains, Luxembourg, is characterized by a brisk winter climate, with maximum temperatures reaching up to 13°C (55°F) while the average hovers around a chilly 2°C (36°F). Nights can be notably cold, dipping to a minimum of -9°C (15°F). The month sees approximately 70 mm (2.8 in) of precipitation spread over 11 days, contributing to a high humidity level of 91%. This combination of temperatures and moisture creates a unique atmosphere, perfect for cozy indoor activities or enjoying the serene beauty of winter scenery.
In Mondorf-les-Bains, Luxembourg, January heralds the heart of winter, showcasing a dramatic range in temperatures. With lows dipping to -9°C (15°F), the month starts off cold, but an average temperature of 2°C (36°F) hints at the subtle warmth that can occasionally creep in. As January progresses, daytime highs can reach up to 13°C (55°F), making brief excursions into the outdoors manageable. Notably, this transitional month stands in contrast to the preceding December, where temperatures hover similarly low, yet it offers a gentle upward trajectory as winter wanes. The chilly days are balanced by the promise of milder weather approaching in February, where even lower temperatures are followed by slightly increasing averages, reinforcing a gradual shift towards the early signs of spring.
In January, Mondorf-les-Bains experiences an average precipitation of 70 mm (2.8 in), distributed over approximately 11 days of wet weather. This sets the tone for a typically damp winter month, with rainfall slightly easing into February, where totals rise marginally to 73 mm (2.9 in) over 12 days. Interestingly, January's precipitation reflect a wider pattern of consistent rainfall that characterizes the early months of the year. As we transition into spring, precipitation tends to fluctuate, peaking in October and December, often showcasing the region's shift toward heavier rains. Overall, January serves as a pivotal month, bridging the wetter winter conditions with the evolving weather patterns of the upcoming months.
In January, Mondorf-les-Bains, Luxembourg experiences a high humidity level of 91%, setting the tone for a winter month characterized by persistent moisture in the air. This is followed closely by February at 90%, indicating that the winter chill maintains a grip on the region. As spring approaches in March and April, humidity begins to gradually decline, dropping to 88% and then 84%. However, this trend shifts again as the summer months arrive; humidity stabilizes around the low 80s% during May to August, creating a more comfortable atmosphere. Interestingly, as autumn sets in, humidity sees a slight rebound, peaking at 93% in December, which is reflective of the seasonal changes that influence moisture levels throughout the year. This cyclical pattern underscores the region's distinctive climate, with winter months robustly humid, while summer offers mild relief.
In January, Mondorf-les-Bains, Luxembourg, experiences a low UV Index of 2, indicating minimal risk from sun exposure, with a burn time of 45 minutes. This gentle start to the year sets the stage for a gradual increase in UV intensity, peaking in May and June when the UV Index soars to a striking 9, representing a very high exposure category and significantly reduced burn time of just 15 minutes. As the months progress, the UV Index fluctuates, illustrating a clear seasonal trend: from the cooler winter months, where protection is less critical, to the summer, where the sun demands more attention. Travelers and locals alike should remain aware of these shifts for safe outdoor enjoyment. For more details, visit Mondorf-les-Bains UV Index.
UV Risk Categories
January in Mondorf-les-Bains, Luxembourg typically begins the year with a modest 104 hours of sunshine, setting a quiet tone for the winter months. As the days lengthen towards spring, February sees a significant increase, nearly doubling the sunlit hours to 191. This upward trend continues throughout March and into the burgeoning warmth of April, peaking at 348 hours. May and June usher in the summer season, offering the most radiant days, with sunshine hours reaching an impressive 406 and 410 respectively. Even in the height of summer, August maintains a robust 383 hours, while September begins to cool with 313 hours. The transition into autumn brings a gentle decline in sunshine, as October offers 233 hours, and the year closes with diminishing light, settling at 171 hours in November and just 109 hours in December. Overall, this sunshine narrative reflects a beautiful progression from the quiet whispers of winter to the vibrant embraces of summer, showcasing the charm of seasonal change in this serene corner of Luxembourg.
In Mondorf-les-Bains, Luxembourg, the chances of sunny weather dip significantly in January, sitting at a mere 11%. This persistent cloudiness marks the beginning of the year, where the chances of sunshine are at their lowest compared to the following months. As winter fades into spring, the likelihood of sunny days gradually increases, with February rising to 33% and March reaching 44%. By April, the sunshine odds cross the halfway mark at 51%, heralding the vibrant spring season. This upward trend continues through the warmer months, peaking in April before fluctuating slightly in the summer and autumn. Overall, January presents a rather gloomy start to the year, but the promise of brighter days is just around the corner.
In Mondorf-les-Bains, Luxembourg, January marks the beginning of the year with a modest 8 hours of daylight, reflecting the lingering grip of winter. However, as the month progresses into February, daylight gradually increases to 10 hours, signaling the approach of spring. This upward trend continues through the following months; by March, daylight reaches 11 hours, and by the blossoming month of April, it expands to a welcoming 13 hours. The peak of daylight occurs in June, with a generous 16 hours, offering ample opportunity for outdoor activities and exploration. As summer gives way to autumn, there's a gentle decline, with daylight hours tapering to 15 hours in July and 14 hours in August, before settling back to 12 hours in September. The decrease becomes more pronounced as the year closes, with daylight dwindling to 10 hours in October and down to 8 hours once again by December, completing the cycle of seasonal change.
In Mondorf-les-Bains, January greets you with an average wind speed of 3.9 m/s (9 mph), making it one of the brisker months in the area. This invigorating breeze sets the tone for winter, contributing to a chill in the air that contrasts with the serene beauty of the landscape. As the seasons transition, February sees a slight decrease to 3.7 m/s, while March continues this trend with 3.6 m/s. However, April brings a gentle drop to 3.3 m/s, heralding the more tranquil winds of spring. Interestingly, May picks up the pace again at 4.1 m/s, suggesting a lively return of warmer weather. The summer months showcase a notable calm, with average speeds dropping to as low as 2.5 m/s in June. This pattern continues through the summer, before a gradual increase begins in September and October, with wind speeds returning to 3.4 m/s by the end of the year. Overall, the January winds offer a fresh and lively start to the year, setting the stage for the changing seasons ahead.
Weather in Mondorf-les-Bains varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Mondorf-les-Bains, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February in Mondorf-les-Bains present a subtle transition in weather patterns. January typically sees a minimum temperature of -9°C (15°F) and an average of 2°C (36°F), while February experiences slightly colder nights with a minimum of -10°C (15°F), but a more pleasant average temperature of 4°C (40°F) and a peak of 19°C (66°F). Both months receive similar levels of precipitation, with January recording 70 mm (2.8 in) over 11 days and February slightly more at 73 mm (2.9 in) across 12 days. Humidity remains high throughout, with January at 91% and February just a touch lower at 90%. For more detailed insights, you can check Mondorf-les-Bains weather in February.
January and March present notable contrasts in weather patterns. In January, temperatures typically range from a minimum of -9°C (15°F) to a maximum of 13°C (55°F), with an average of around 2°C (36°F). The month sees 70 mm (2.8 in) of precipitation over 11 days, accompanied by high humidity levels of 91%. In contrast, March experiences a slight drop in minimum temperatures, reaching -11°C (13°F), but the average climbs to 6°C (44°F), with highs soaring to 23°C (73°F). Precipitation increases slightly to 75 mm (3.0 in) over 14 days, and humidity remains relatively high at 88%. For more detailed insights into the weather in March, you can check Mondorf-les-Bains weather in March.
January and April present strikingly different weather conditions. In January, temperatures can plummet to a minimum of -9°C (15°F), with an average of just 2°C (36°F) and a maximum of 13°C (55°F). The month experiences considerable precipitation of 70 mm (2.8 in) over 11 days, alongside high humidity levels at 91%. In contrast, April showcases a milder climate, with temperatures ranging from a low of -3°C (26°F) to a comfortable maximum of 27°C (80°F) and an average temperature of 10°C (50°F). Precipitation decreases to 40 mm (1.6 in) across 9 days, and humidity is lower at 84%. This shift highlights the transition from the cold depths of winter to the more temperate spring season. For more specific details on April weather, you can check Mondorf-les-Bains weather in April.
In January, the weather is characterized by a sharp chill, with temperatures ranging from a minimum of -9°C (15°F) to a maximum of 13°C (55°F), while the average temperature hovers around 2°C (36°F). The month experiences significant humidity at 91% and sees about 70 mm (2.8 in) of precipitation spread over 11 days, making it a rather damp and cold time of year.
In contrast, May brings a much warmer climate, with temperatures ranging from a minimum of 0°C (33°F) to a pleasant maximum of 31°C (88°F), and an average temperature of 13°C (56°F). Despite the increase in warmth, May also sees 70 mm (2.8 in) of precipitation, slightly more than in January, but over 12 days. The humidity decreases to 81%, which, along with the rising temperatures, contributes to a much more comfortable and enjoyable atmosphere. For more insights into May weather, you can explore Mondorf-les-Bains weather in May.
January and June present contrasting weather conditions. In January, temperatures are cold, with a minimum of -9°C (15°F) and an average of just 2°C (36°F), while the maximum can reach 13°C (55°F). The month experiences significant humidity at 91% and sees about 70 mm (2.8 in) of precipitation over 11 days. In stark contrast, June boasts much milder temperatures, with a minimum of 7°C (44°F) and an average of 18°C (65°F), soaring up to a maximum of 34°C (94°F). Despite having similar levels of precipitation—around 70 mm (2.7 in)—June experiences slightly less rainfall on about 10 days. For a closer look at June's climate, you can check this link: Mondorf-les-Bains weather in June.
The weather in January and July presents a stark contrast in climate conditions. In January, temperatures are quite chilly, with minimums dipping as low as -9°C (15°F) and averaging around 2°C (36°F), while the maximum reaches only 13°C (55°F). This month also experiences high humidity levels at 91% and precipitation totaling 70 mm (2.8 in) over approximately 11 days.
In contrast, July offers a much warmer experience, featuring minimum temperatures around 8°C (47°F) and averaging 19°C (67°F), with maximums soaring to 38°C (101°F). Despite similar precipitation levels of 70 mm (2.8 in), July enjoys fewer rainy days, typically spanning just 8 days, and lower humidity at 82%. For more specific details on July weather, visit Mondorf-les-Bains weather in July.
January and August present distinctly different weather patterns. In January, temperatures range from a chilly -9°C (15°F) to a moderate 13°C (55°F), with an average of 2°C (36°F). The month is characterized by relatively high humidity at 91%, and it sees about 70 mm (2.8 in) of precipitation over approximately 11 days. In contrast, August experiences much warmer conditions, with temperatures varying from a minimum of 7°C (44°F) to a maximum of 35°C (95°F), averaging around 19°C (67°F). While August brings slightly less precipitation at 59 mm (2.3 in), it still features around 12 days of rain, alongside a lower humidity level of 80%. For more details on August weather, visit Mondorf-les-Bains weather in August.
In January, the weather in Mondorf-les-Bains is characterized by chilly temperatures, with a minimum of -9°C (15°F) and an average of just 2°C (36°F), occasionally reaching a maximum of 13°C (55°F). The month experiences considerable precipitation, totaling around 70 mm (2.8 in) over approximately 11 days, accompanied by high humidity levels at 91%. In contrast, September brings a more temperate climate, with temperatures ranging from a low of 4°C (39°F) to an average of 15°C (59°F) and highs peaking at 32°C (89°F). This month sees less precipitation, totaling 61 mm (2.4 in) over about 9 days, and the humidity is slightly lower at 83%. For more details on the September weather, you can visit Mondorf-les-Bains weather in September.
In January, the weather is markedly colder, with temperatures ranging from a minimum of -9°C (15°F) to a maximum of 13°C (55°F), and an average of just 2°C (36°F). The month is characterized by high humidity at 91% and a total precipitation of 70 mm (2.8 in) over 11 days. In contrast, October offers a much milder climate with temperatures ranging from a minimum of 1°C (34°F) to a pleasant maximum of 25°C (77°F), averaging around 11°C (52°F). While October experiences slightly higher precipitation at 76 mm (3.0 in) over 12 days, the humidity remains relatively high at 89%. For a detailed look at October's climate, check out Mondorf-les-Bains weather in October.
In comparing the weather of January and November, we see notable differences in temperature and precipitation patterns. January is colder, with temperatures averaging around 2°C (36°F), and a maximum of just 13°C (55°F), whereas November offers milder conditions, with an average temperature of 6°C (43°F) and a maximum reaching 20°C (68°F). Both months experience similar levels of precipitation, around 70 mm (2.8 in) in January and 70 mm (2.7 in) in November, although January has slightly fewer days of precipitation (11 days compared to 12 days in November). Humidity remains constant at 91% for both months, contributing to the generally damp and overcast conditions typical of winter in this region. For more specific details about November weather, you can check Mondorf-les-Bains weather in November.
In comparing the weather between January and December, January typically presents colder temperatures, with an average of 2°C (36°F) compared to December's average of 4°C (40°F). While both months experience chilly minimums, January's low can dip to -9°C (15°F), slightly colder than December's minimum of -6°C (22°F). Precipitation is notably higher in December, totaling 118 mm (4.6 in) over 19 days, while January sees lesser amounts at 70 mm (2.8 in) across 11 days. Additionally, humidity levels remain high in both months, with January at 91% and December slightly higher at 93%. For more detailed insights, visit Mondorf-les-Bains weather in December.
January in Mondorf-les-Bains presents a dramatic contrast to the milder months of the year. Characterized by chilly temperatures, with averages dropping to around 2°C and occasional dips to -9°C, this month truly embraces the winter chill. The high humidity at 91%, coupled with about 11 days of precipitation, creates a damp and often overcast ambiance. Unlike the warm, sunny days of summer, January invites visitors to cozy up indoors or enjoy the serene beauty of the snow-laden landscape. For a deeper dive into the nuances of the region's climate, explore Mondorf-les-Bains Climate.