Last updated: August 21, 2025
May in Mondorf-les-Bains, Luxembourg offers a blend of warmth and charm, with temperatures soaring to a maximum of 31°C (88°F) while averaging a comfortable 13°C (56°F). The month welcomes fresh, occasional rains, accumulating around 70 mm (2.8 in) over approximately 12 days, nurturing the lush scenery. Humidity levels hover at 81%, creating a pleasantly humid atmosphere that enhances the region's natural beauty. Whether you're exploring the local parks or indulging in spa treatments, May is an enchanting time to experience the unique allure of this charming destination.
In May, Mondorf-les-Bains experiences a delightful transition to spring, with temperatures reaching a minimum of 0°C (33°F) and soaring to a maximum of 31°C (88°F). The average temperature of 13°C (56°F) signifies a noticeable warming trend compared to the cooler months before it. As the landscape bursts into life, these warmer days encourage outdoor activities, making it an inviting time for visitors to enjoy the town's parklands and spas. Unlike the frigid depths of winter, May offers a taste of summer’s warmth, hinting at the vibrant season ahead. As the daylight stretches longer and nature thrives, the idyllic weather sets the perfect backdrop for relaxation and exploration.
In May, Mondorf-les-Bains experiences a return to familiar patterns, with precipitation totaling 70 mm (2.8 in), mirroring the rainfall from both January and earlier months. This consistent level of moisture falls over approximately 12 days, reflecting a trend of moderate weather leading into the warmer season. Notably, May's precipitation is significantly higher than April's 40 mm, suggesting a rejuvenation of the landscape as spring fully unfolds. As the chance of rain remains steady, it supports the vitality of blooming flora and the lushness that characterizes this charming region in early summer. The steady rainfall observed in May, akin to the consistent patterns noted in the preceding months, sets the stage for a vibrant and inviting environment as the weather transitions toward June.
As spring transitions into summer, May in Mondorf-les-Bains, Luxembourg, experiences a notable dip in humidity levels, with an average of 81%. This marked decline from the wetter months of winter, where humidity consistently ranges from 91% in January to 90% in February, signals a gradual easing of moisture in the air. Following April's humidity of 84%, May’s lower figures hint at the approaching warmer months, yet they remain comfortably high compared to the subsequent summer humidity that hovers around 82% in June and July. This subtle trend showcases a beautiful balance of comfort and freshness, as residents and visitors alike enjoy the mild ambiance in this charming spa town.
As May rolls in, the UV Index in Mondorf-les-Bains sees a significant rise, jumping to 8 and entering the very high exposure category. This increase marks a notable shift from the previous months, reflecting the strengthening rays of spring. With a burn time reduced to just 15 minutes, it's crucial to embrace sun safety, as skin can quickly be affected. This trend continues into June and July, maintaining high UV levels, suggesting that outdoor enthusiasts should be vigilant in protecting themselves against potential sunburn. For more detailed insights on UV exposure throughout the year, check out the Mondorf-les-Bains UV Index.
UV Risk Categories
In May, Mondorf-les-Bains basks in a delightful 383 hours of sunshine, showcasing the peak of spring's radiance. This month marks a vibrant transition as daylight expands significantly from April's 348 hours, heralding the arrival of brighter days. The upward trend continues into June, where sunshine reaches its zenith with 406 hours. As summer approaches, the sunniest months follow, yet May stands out as a refreshing pause before the full blaze of summer, offering a perfect blend of warmth and light. This gradual increase in hours emphasizes the unique charm of May in Mondorf-les-Bains, making it a truly enchanting time to enjoy the outdoors and soak up the sun.
In Mondorf-les-Bains, Luxembourg, the likelihood of enjoying sunny weather in May stands at a moderate 33%, marking a dip from the peak sunshine potential of April at 51%. This decrease hints at a transitional phase as the region shifts from the spring bloom to the early whispers of summer. Interestingly, while sunny days remain uncertain, May's chance of sunshine aligns with those of June and is slightly higher than the sultry July. As we move through the months, the trends reveal that March and April are the standout months for sunshine, while May offers a mixed bag. Visitors should come prepared for both sunny spells and occasional overcast skies, embodying the unpredictable charm of spring weather in Luxembourg.
In Mondorf-les-Bains, Luxembourg, the progression of daylight throughout the year reveals a beautiful rhythm that mirrors the changing seasons. As winter fades, January offers just 8 hours of daylight, gradually increasing to 10 hours in February and 11 hours by March, heralding the arrival of spring. By April, the days stretch to 13 hours, and come May, residents can bask in 15 hours of sunlight—a delightful leap that marks the transitional peak into summer. The longest days arrive in June with 16 hours of light, casting a golden glow over the landscape. However, as summer wanes, the daylight begins to recede, diminishing to 15 hours in July and 14 hours in August, before settling into the gentler sunlight of early autumn. By September, daylight drops to 12 hours, gently leading into the shorter days of October and November, which culminate in the return to 8 hours by December. This cyclical journey not only enhances the beauty of each season but also invites residents and visitors alike to savor the shifting light across the year.
In May, Mondorf-les-Bains experiences a noticeable uptick in wind speed, averaging 4.1 m/s (9 mph), making it one of the breezier months of the year. This slight increase from the preceding months, where winds generally tapered off, suggests a refreshing turn as spring fully settles in. The transition from April's gentler 3.3 m/s (7 mph) creates an invigorating atmosphere, perfect for outdoor activities and exploration. As summer approaches, the winds begin to mellow again, but May stands out as a month where nature offers a brisk respite, inviting both locals and visitors to enjoy the beautiful landscape.
Weather in Mondorf-les-Bains varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Mondorf-les-Bains, focusing on differences in temperature, rainfall, humidity, and UV levels.
In May, the weather is noticeably warmer, with average temperatures soaring to 13°C (56°F) and maximums reaching up to 31°C (88°F), while January remains quite chilly, with average temperatures hovering around 2°C (36°F) and maxima capped at 13°C (55°F). Both months experience similar precipitation, with May and January receiving about 70 mm (2.8 in), but May typically enjoys slightly less humidity at 81%, compared to January's higher level of 91%. For more detailed insights, you can check Mondorf-les-Bains weather in January.
When comparing the weather in May and February, it’s evident that May is significantly warmer and more variable. In May, temperatures range from a minimum of 0°C (33°F) to a maximum of 31°C (88°F), with an average of 13°C (56°F). In contrast, February is much colder, with temperatures ranging from -10°C (15°F) to a maximum of 19°C (66°F) and an average of only 4°C (40°F). Both months experience a similar amount of precipitation, around 70-73 mm (2.8-2.9 in), and approximately 12 rainy days. However, May has a slightly lower humidity level at 81% compared to February’s 90%, making it feel less damp. For more detailed information, you can check Mondorf-les-Bains weather in February.
May weather in Mondorf-les-Bains is generally warmer and more variable than in March. With temperatures ranging from a minimum of 0°C (33°F) to a maximum of 31°C (88°F) and an average of 13°C (56°F), May brings a sense of spring's arrival. In contrast, March showcases colder conditions, with temperatures ranging from -11°C (13°F) to a maximum of 23°C (73°F), averaging just 6°C (44°F). Both months experience significant precipitation—70 mm (2.8 in) in May versus 75 mm (3.0 in) in March—but March sees a slightly higher number of rainy days at 14 compared to May's 12 days. Furthermore, humidity levels are slightly higher in March at 88%, compared to May's 81%. For a detailed look at March's weather patterns, visit Mondorf-les-Bains weather in March.
In April, temperatures in Mondorf-les-Bains were noticeably cooler, ranging from a minimum of -3°C (26°F) to a maximum of 27°C (80°F), with an average of 10°C (50°F). The month also saw less precipitation, totaling 40 mm (1.6 in) over 9 days, and humidity levels were relatively high at 84%. In contrast, May brought warmer temperatures, with a minimum of 0°C (33°F) and a maximum of 31°C (88°F), averaging 13°C (56°F). Rainfall increased to 70 mm (2.8 in) over 12 days, while humidity slightly decreased to 81%. Overall, May offered a more pleasant climate compared to the cooler and wetter conditions of April. For a detailed look at April’s weather, visit Mondorf-les-Bains weather in April.
May and June present notable differences in weather patterns, particularly in temperature and daily conditions. In May, temperatures range from a minimum of 0°C (33°F) to a maximum of 31°C (88°F), with an average of 13°C (56°F). The month experiences about 70 mm (2.8 in) of precipitation over 12 days, and the humidity is relatively high at 81%. In contrast, June sees a 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). Although June also records approximately 70 mm (2.7 in) of precipitation, it has slightly fewer rainy days at 10, and humidity remains comparable at 82%. For more detailed insights, visit Mondorf-les-Bains weather in June.
In comparing the weather of May and July, we observe notable differences in temperature and precipitation patterns. May experiences a wider temperature range, with minimums dropping to 0°C (33°F) and maximums peaking at 31°C (88°F), resulting in an average of 13°C (56°F). In contrast, July's temperatures are milder, with minimums starting at 8°C (47°F) and maximums soaring to 38°C (101°F), averaging at 19°C (67°F). Both months receive the same amount of precipitation (70 mm or 2.8 in), but May sees more rainy days, totaling 12 compared to July's 8 days. Interestingly, humidity levels are similar in both months, hovering around 81% in May and slightly rising to 82% in July. For more details, you can check Mondorf-les-Bains weather in July.
May and August exhibit notable differences in weather patterns. In May, temperatures range from a chilly 0°C (33°F) at night to a warm 31°C (88°F) during the day, averaging around 13°C (56°F). The month experiences about 70 mm (2.8 in) of precipitation over 12 days, accompanied by high humidity at 81%. In contrast, August brings milder nighttime temperatures starting at 7°C (44°F) and peaking at 35°C (95°F) during the day, with an average of 19°C (67°F). Precipitation in August is slightly lower at 59 mm (2.3 in) over the same number of rainy days, while humidity remains similar at 80%. For more details on the weather during this month, check out Mondorf-les-Bains weather in August.
May and September present a transition in weather as spring gives way to autumn. In May, temperatures can range from a chilly 0°C (33°F) to a warm 31°C (88°F), with an average of 13°C (56°F). The month experiences about 70 mm (2.8 in) of precipitation over approximately 12 days, coupled with a humidity level of 81%. In contrast, September offers slightly cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 32°C (89°F), averaging around 15°C (59°F). It sees less rainfall, totaling 61 mm (2.4 in) over 9 days, and a marginally higher humidity at 83%. The gradual shift highlights September's more stable climate compared to the variability of May. For detailed insights on September weather, you can check Mondorf-les-Bains weather in September.
When comparing the weather in May and October, one can observe notable differences in temperature and humidity. In May, temperatures range from a chilly minimum of 0°C (33°F) to a warm maximum of 31°C (88°F), with an average of 13°C (56°F). In contrast, October offers a cooler experience, with temperatures varying from a minimum of 1°C (34°F) to a maximum of 25°C (77°F) and an average of 11°C (52°F). Additionally, October tends to be slightly wetter, with 76 mm (3.0 in) of precipitation over 12 days, compared to May's 70 mm (2.8 in) of rain. Humidity levels are also higher in October, reaching 89% compared to May's 81%. For more detailed insights into October weather, you can visit Mondorf-les-Bains weather in October.
May and November exhibit distinct weather contrasts, reflecting the transition between spring and late autumn. In May, temperatures range from a refreshing minimum of 0°C (33°F) to a warm maximum of 31°C (88°F), with an average of 13°C (56°F), while humidity sits at a moderate 81%. The month experiences approximately 70 mm (2.8 in) of precipitation over 12 days, creating a vibrant atmosphere. Conversely, November brings cooler temperatures, with a minimum of -3°C (26°F) and a maximum of 20°C (68°F), averaging just 6°C (43°F). Humidity is slightly higher at 91%, and the month also receives around 70 mm (2.7 in) of precipitation over the same number of days. For more detailed information about the November weather in this region, you can visit Mondorf-les-Bains weather in November.
May and December present strikingly different weather conditions. In May, temperatures range from a chilly 0°C (33°F) at night to a warm 31°C (88°F) during the day, averaging around 13°C (56°F). The month sees moderate precipitation of 70 mm (2.8 in) over about 12 days, with humidity levels at 81%. In contrast, December brings colder temperatures, with a minimum of -6°C (22°F) and a maximum of only 14°C (58°F), averaging just 4°C (40°F). This month experiences more rainfall, totaling 118 mm (4.6 in) across 19 days, and higher humidity at 93%. For a detailed look at December weather, visit Mondorf-les-Bains weather in December.
May in Mondorf-les-Bains marks a transition from the coolness of spring to the warmth of summer, showcasing a delightful blend of mild temperatures and increased humidity. Unlike the chill of earlier months, visitors can expect pleasant days with temperatures peaking at a refreshing 31°C, while the average remains comfortable around 13°C. However, the month does bring some rain, with about 12 days of precipitation, contributing to a moisture-rich environment, evident in the 81% humidity that envelops the region. Overall, May offers a vibrant atmosphere perfect for exploring the lush greenery and rejuvenating spa experiences that Mondorf-les-Bains is renowned for. For more insights, be sure to check the detailed Mondorf-les-Bains Climate.