May Weather in Vianden, Luxembourg

Last updated: August 21, 2025

Experience the enchanting weather of Vianden, Luxembourg in May, where temperatures swing from a delightful maximum of 30°C (86°F) during warm afternoons to a refreshing average of 12°C (54°F), cooling down to a brisk minimum of -1°C (30°F) at night. This month sees about 73 mm (2.9 in) of precipitation over 14 days, bringing a lush vibrancy to the landscape. With a humidity level hovering around 81%, May offers a blend of sunny and rainy days, making it an ideal time for nature lovers and outdoor enthusiasts to explore the charm of this picturesque region.

May Temperature in Vianden

In May, Vianden, Luxembourg, emerges from the chill of winter into a more temperate climate, as temperatures display a noticeable upward trend. The monthly lows hover around -1°C (30°F), allowing for comfortable evenings, while daytime maxes can soar up to a balmy 30°C (86°F). The average temperature settles at a pleasant 12°C (54°F), making May an ideal time for outdoor activities and exploration. This shift marks a stark contrast to the preceding months, where the lingering cold temperatures have finally begun to yield to the warmth of spring, inviting residents and visitors alike to enjoy the stunning landscapes of this picturesque town.

May Weather in Vianden: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Vianden, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vianden, May 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).
JanFebMarAprMayJunJulAugSepOctNovDec343741485463646457504138
Data source: Temperature data for Vianden generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Vianden

May in Vianden, Luxembourg, sees a precipitation amount of 73 mm (2.9 in), maintaining a trend of similar rainfall levels observed in both January and February. This month experiences an average of 14 rainy days, slightly higher than April’s 9 days, contributing to a gradual increase in wet weather as spring transitions into summer. The amount of rainfall in May is representative of the region's consistent climate, with precipitation steadily ranging between 70 mm and 82 mm throughout the spring months. As we move into June, the rain continues, highlighting Vianden’s lush greenery and vibrant landscapes that thrive on this moderate moisture. Overall, May serves as a pivotal month in Vianden's weather pattern, balancing between the drier days of April and the slightly wetter June ahead.

May Precipitation Trends in Vianden

The chart displays monthly precipitation patterns in Vianden, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Vianden, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec7273824173767770637564114
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Vianden

In May, Vianden, Luxembourg experiences a noticeable shift in humidity, dropping to 81%. This marks a gradual decline from the exceptionally high levels seen in the winter months, where humidity hovered around 90% or more. As spring unfolds, the air becomes a bit lighter and more refreshing, transitioning from the dampness of early in the year. Following May, humidity slightly rises again in June, returning to 82%. This seasonal variability highlights Vianden's unique climate, where each month brings its own character, inviting visitors to embrace the charm of the emerging summer while appreciating the gradual changes in the air around them.

May Average Humidity in Vianden

This chart illustrates the average monthly humidity levels in Vianden, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Vianden is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%88%84%81%82%82%80%83%89%91%93%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Vianden

As spring transitions into summer in Vianden, Luxembourg, May brings a notable surge in UV radiation, with a UV Index of 8, categorizing it as very high. This sharp increase from the preceding months signifies a pivotal moment when outdoor enthusiasts must pay close attention to sun safety. With a burn time of just 15 minutes, the importance of protective measures against harmful UV rays cannot be overstated. Compared to earlier months, where the Index ranged from low to moderate, May's intensity amplifies the need for sunscreen, hats, and other protective gear to ensure a safe and enjoyable experience outdoors. As we eagerly embrace the warmer weather, be sure to stay informed about the UV conditions. For detailed daily updates, visit Vianden UV Index.

Maximum UV Index Levels in Vianden for May

The chart shows the monthly maximum UV Index (UVI) for Vianden in May, 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 May, the maximum UV index in Vianden typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689876421
Data source: Vianden May 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.

May Sunshine in Vianden

May in Vianden, Luxembourg, reveals a delightful peak in sunshine, boasting 381 hours of radiant sunlight. This vibrant month reflects a clear upward trend from the 98 hours seen in January, as the days grow longer and warmer, transitioning through impressive gains in February and March. April acts as a springboard, leading seamlessly into May's bright embrace, where nature flourishes under the sunny skies. As summer approaches in June and July, sunlight reaches its zenith with 401 and 404 hours respectively, promising endless opportunities for outdoor adventures. The trend of increasing sunshine in Vianden continues to enrich the landscape, making May a particularly enchanting time to experience the charm of this picturesque town.

Monthly Sunshine Duration in Vianden: May Highlighted

The May sunshine duration represents the total number of hours Vianden experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec98h188h250h347h381h401h404h378h311h225h165h104h
Data source: Vianden May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Vianden During May

In Vianden, Luxembourg, the likelihood of sunny weather in May sits at a moderate 30%, slightly dipping from the warmer months preceding it. As we progress from the winter gloom of January—where sunny days are a mere 8%—April brings a promising 46%, making it the most sunlit month so far. However, May's chance of sunshine sees a notable decrease, paralleling a similar trend observed in the summer months of June (30%) and August (28%). Despite these fluctuations, May remains an enticing time to visit, as it often offers a pleasant mix of milder weather and blooming landscapes, making it a charming backdrop for outdoor activities.

Percentage of Sunny Days in May in Vianden

The chart illustrates the percentage of sunny days in Vianden throughout the year, with May 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 Vianden experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec8%31%42%46%30%30%33%28%38%27%17%12%
Data source: Vianden May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Vianden in May

As spring blooms into summer in Vianden, Luxembourg, May marks a delightful transition with 15 hours of daylight illuminating the landscape. This extension of daylight, a significant leap from April's 13 hours, invites outdoor adventures and the vibrant activity of nature awakening. Following a gradual increase from January's mere 8 hours, the trend continues upward, peaking in June at a striking 16 hours, before gradually tapering off towards the end of the year. With each passing month, Vianden transforms, showcasing longer days that not only enhance the beauty of the surroundings but also enrich the community's spirit, making May a particularly golden time of year.

Average Daylight Hours in Vianden for May

The chart illustrates the variation in daylight duration in Vianden throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 36m10h 4m11h 55m13h 48m15h 26m16h 17m15h 50m14h 22m12h 33m10h 41m9h8h 7m
Data source: Vianden daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Vianden

In Vianden, Luxembourg, May heralds a refreshing uptick in wind activity, with an average wind speed of 4.2 m/s (9 mph), making it one of the breezier months of the year. This marks a noticeable increase from the preceding April, which recorded a calmer 3.4 m/s (8 mph). The winds of May bring a sense of invigorating change, setting the stage for the approaching summer months. Interestingly, as temperatures rise into the summer, the wind speed tends to dip again in June to 2.6 m/s (6 mph), suggesting that while May enjoys a brief burst of breezy vitality, the following months settle into a more tranquil rhythm. This pattern highlights May as a transitional month, capturing the essence of spring's energy before the warmer, gentler days of summer fully take hold.

Average May Wind Speed in Vianden

The chart displays monthly wind speed patterns in Vianden, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.03.83.83.44.2 m/s2.63.03.32.43.73.03.5
Data source: Vianden May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Vianden Compares to Other Months

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

When comparing the weather in May and January, there are notable differences. May typically features much warmer temperatures, ranging from a minimum of -1°C (30°F) to a maximum of 30°C (86°F), with an average of 12°C (54°F). In contrast, January experiences colder conditions with temperatures ranging from a frigid minimum of -14°C (8°F) to a maximum of 11°C (52°F) and an average temperature of only 1°C (35°F). Both months have similar precipitation levels, with May receiving about 73 mm (2.9 in) over an average of 14 days, while January sees slightly less at 72 mm (2.8 in) over 12 days. Humidity is also higher in January at 91% compared to May's 81%. For more detailed weather information, you can check Vianden weather in January.

May and February showcase stark contrasts in weather conditions. In May, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 30°C (86°F), with an average of 12°C (54°F) that heralds the arrival of spring. While May experiences 73 mm (2.9 in) of precipitation over 14 days, the humidity is relatively lower at 81%, making it feel more comfortable.

In contrast, February presents a colder climate, with temperatures dipping as low as -12°C (12°F) and peaking at 18°C (65°F) for an average of just 3°C (37°F). Despite similar precipitation levels of 73 mm (2.9 in), February sees this distributed over 12 days, and the humidity is notably higher at 90%, contributing to a more pronounced chill. For more detailed insights about February weather, you can visit Vianden weather in February.

In comparing the weather of May and March, it’s clear that May enjoys milder and more comfortable temperatures, with an average of 12°C (54°F) and highs reaching up to 30°C (86°F), while March is much cooler, averaging just 5°C (42°F) and peaking at 21°C (70°F). However, March has a slightly higher maximum temperature range, with temperatures dropping to a minimum of -13°C (8°F) compared to May's minimum of -1°C (30°F).

Precipitation is also fairly similar; March sees 82 mm (3.2 in) over 16 days, while May experiences 73 mm (2.9 in) across 14 days. Interestingly, humidity levels remain high in both months, with March at 88% and May at 81%. For more details about March weather, you can refer to Vianden weather in March. Overall, May offers more inviting conditions for outdoor activities, while March still grapples with the lingering chills of winter.

In comparing the weather of May and April, it is evident that May tends to be warmer and wetter. May features a broader temperature range, with minimums dipping to -1°C (30°F) and maximums soaring to 30°C (86°F), resulting in an average temperature of 12°C (54°F). In contrast, April's temperatures are cooler, with a minimum of -3°C (26°F) and a maximum of 26°C (78°F), leading to an average of 9°C (48°F). Additionally, May experiences more precipitation, accumulating 73 mm (2.9 in) over 14 days, while April sees only 41 mm (1.6 in) over 9 days. Humidity levels are slightly lower in May at 81%, compared to April's 84%. For more details, you can check Vianden weather in April.

May and June exhibit noticeable differences in weather patterns. In May, temperatures range from a chilly minimum of -1°C (30°F) to an average of 12°C (54°F) and can peak at 30°C (86°F). The month experiences about 73 mm (2.9 in) of precipitation over 14 days, with humidity at a relatively high 81%. In contrast, June sees milder minimum temperatures starting at 6°C (43°F) and a warmer average of 17°C (63°F), reaching up to 32°C (90°F) at its peak. Precipitation slightly increases to 76 mm (3.0 in) over just 13 days, and humidity remains similar at 82%. For a more detailed look at the weather in June, check out Vianden weather in June.

May and July exhibit notable differences in weather patterns. In May, temperatures range from a chilly minimum of -1°C (30°F) to a comfortable average of 12°C (54°F), peaking at a warm 30°C (86°F). The month sees a total of 73 mm (2.9 in) of precipitation across 14 days, accompanied by relatively high humidity at 81%.

In contrast, July brings milder minimum temperatures, starting at 6°C (44°F), and an average temperature of 18°C (65°F), with maximums soaring to a scorching 37°C (99°F). Precipitation slightly increases to 77 mm (3.0 in) but occurs over just 11 days, while humidity remains high at 82%. These variations highlight a shift from the cooler, more variable spring weather of May to the hotter, drier conditions typical of summer in July. For more detailed insights, you can explore Vianden weather in July.

May and August exhibit distinct weather patterns, reflecting the transitional nature of spring and summer. In May, temperatures range from a chilly minimum of -1°C (30°F) to a comfortable maximum of 30°C (86°F), with an average of 12°C (54°F). This month experiences approximately 73 mm (2.9 in) of precipitation over 14 days and a humidity level of 81%. In contrast, August features a more consistent warmth, with temperatures varying from 5°C (41°F) to a high of 34°C (93°F), averaging 18°C (64°F). The precipitation in August is slightly lower at 70 mm (2.7 in), also spread over 14 days, with humidity slightly decreased at 80%. For a closer look at weather specifics during this month, visit Vianden weather in August.

May and September present distinct weather patterns, each with its own charm. In May, temperatures range from a chilly -1°C (30°F) at night to a warm 30°C (86°F) during the day, with an average of 12°C (54°F) and 73 mm (2.9 in) of rainfall over about 14 days, resulting in a humidity level of 81%. Conversely, September offers slightly milder temperatures, with nighttime lows of 3°C (37°F) and highs reaching 32°C (90°F), averaging 14°C (57°F). It experiences less precipitation at 63 mm (2.5 in) over 9 days and a slightly higher humidity of 83%. For a closer look at September weather in Vianden, check out Vianden weather in September.

May and October present distinct weather patterns, showcasing the transition from spring to autumn. In May, temperatures range from a chilly -1°C (30°F) at night to a warm 30°C (86°F) during the day, with an average of 12°C (54°F). This month experiences about 73 mm (2.9 in) of rainfall across 14 days, accompanied by relatively high humidity at 81%.

In contrast, October brings cooler temperatures, with a minimum of 0°C (32°F) and a maximum of 24°C (75°F), averaging around 10°C (50°F). The rainfall in October is slightly higher at 75 mm (3.0 in), but precipitation occurs over just 11 days, and humidity rises to 89%. The changing weather conditions reflect the seasonal shift, making October distinctly different from the warmer and more variable May. For those curious about specific details, check out Vianden weather in October.

In comparing the weather between May and November, significant differences are evident in both temperature and precipitation. May enjoys a broader temperature range, with minimums reaching down to -1°C (30°F) and maximums soaring up to 30°C (86°F), leading to an average of 12°C (54°F). In contrast, November presents a cooler climate, with temperatures ranging from a low of -5°C (23°F) to a high of 18°C (65°F), averaging at just 5°C (41°F). While May experiences 73 mm (2.9 in) of precipitation over about 14 days, November sees slightly less rainfall at 64 mm (2.5 in) across 12 days. Additionally, humidity is higher in November at 91%, compared to May's 81%. For a deeper insight into November weather, you can explore Vianden weather in November.

May and December present contrasting weather patterns. In May, temperatures range from a chilly -1°C (30°F) at night to a warm 30°C (86°F) during the day, with an average of 12°C (54°F). The month experiences moderate rainfall of 73 mm (2.9 in) over about 14 days, accompanied by a relatively high humidity of 81%.

In contrast, December is much colder, with temperatures dropping from -5°C (23°F) to a maximum of 13°C (56°F), averaging only 3°C (38°F). This month also sees increased precipitation at 114 mm (4.5 in), occurring over 19 days, and a higher humidity level of 93%. For more specific details about the December weather, you can visit Vianden weather in December.

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Conclusion: What to Expect From May Weather in Vianden

As May dawns in Vianden, the weather brings a delightful contrast to the colder months, shifting from chilly temperatures to a pleasant warmth. With maximum temperatures soaring up to 30°C (86°F), the month marks a significant increase in warmth compared to the average 12°C (54°F) of earlier seasons. However, while the days become more inviting, May also sees a notable increase in precipitation, with around 14 days experiencing rain, resulting in a total of 73 mm (2.9 in). The 81% humidity adds a lush feel to the landscape, enhancing the beauty of this charming town. For a detailed overview of how Vianden's climate evolves throughout the year, visit Vianden Climate.