Last updated: August 21, 2025
In Diekirch, Luxembourg, May showcases a spectrum of weather, ranging from a maximum of 30°C (87°F) to a chilling minimum of -1°C (31°F). The average temperature hovers around a pleasant 13°C (56°F), indicating a shift into warmer days. However, with 69 mm (2.7 in) of precipitation spread over approximately 12 days, residents can expect a fair share of rain, contributing to the region's lush greenery. The humidity levels are relatively high at 81%, which may enhance the feel of warmth, making May a month of both fresh blooms and refreshing showers.
In May, temperatures in Diekirch, Luxembourg begin to rise significantly, signaling the transition into warmer weather. With a minimum of -1°C (31°F) and an average of 13°C (56°F), this month exhibits a notable increase from previous months. The maximum temperature can reach an impressive 30°C (87°F), highlighting May as a month of vibrant change. These warming trends mark a shift from the chilly depths of winter and the coolness of early spring, making May an ideal time to enjoy the outdoors as nature bursts into full bloom. As the days grow longer and sunnier, Diekirch captures the essence of spring, inviting residents and visitors alike to relish the comfortable and mild temperatures.
In May, Diekirch experiences a precipitation level of 69 mm (2.7 in), marking a slight increase from April's 40 mm but consistent with June's expected total. Notably, with 12 rainy days, May balances rainfall and milder spring weather, drawing a parallel to the latter part of the spring season where moisture begins to stabilize. This month typically serves as a bridge between the dry spells of early spring and the wetter patterns of summer, underscoring a gradual increase in overall precipitation that enhances the lush landscapes of Luxembourg. As temperatures rise, the interplay of rain and spring sunshine creates a vibrant environment, fostering the region's iconic greenery.
In Diekirch, Luxembourg, May marks a notable shift in humidity as it dips to 81%, reflecting the region's gradual transition into the warmer months. This decrease from April's 84% showcases the onset of drier conditions, offering a brief reprieve from the winter months when humidity consistently hovers above 90%. As spring blossoms, the lower humidity levels in May seem to encourage outdoor activities, contrasting sharply with the high humidity levels that envelope Diekirch throughout the colder seasons. However, just as the warmth of early summer rolls in, humidity slightly rises again in June, hinting at the cyclical nature of weather patterns in this charming region.
As May arrives in Diekirch, Luxembourg, the sun begins to strengthen, signaling a shift in UV exposure that demands attention. With a UV Index of 8, the exposure category climbs to very high, and the burn time plummets to just 15 minutes. This trend of increasing UV intensity highlights the transition from the cooler months where protection was less critical, to a season where precautions are essential. Following April's high index of 6, May’s surge reminds residents and visitors alike to seek shade, wear protective clothing, and apply sunscreen generously to safeguard against the sun's harsh rays. As the month progresses, staying informed about the changing UV Index is vital; you can find more detailed information at Diekirch UV Index.
UV Risk Categories
As spring transitions into summer, May shines brightly in Diekirch, Luxembourg, boasting 383 hours of sunshine that elevate spirits and invigorate the landscape. This month marks a peak in the gradual increase of daylight hours, following a steady rise from 104 hours in January to 348 hours in April. The delightful warmth of May not only enhances outdoor activities but also sets the stage for an energetic June, when sunshine reaches its zenith at 406 hours. With summer months consistently basking in abundant sunlight, Diekirch thrives under the vibrant hue of longer days, creating a picturesque backdrop for residents and visitors alike to savor.
In Diekirch, Luxembourg, May brings a 31% chance of sunny weather, a slight dip from the previous month’s 49%. This decline is part of a broader trend where early spring months like March and April showcase higher sunshine probabilities, peaking at 43% and 49% respectively. Following May, June and July also hover around 31% and 35%, indicating a relatively steady likelihood of sunny days as the summer approaches. While May doesn’t quite maintain the sunshine momentum of April, it still offers a decent possibility for enjoying the outdoors amidst the vibrant spring atmosphere.
In Diekirch, Luxembourg, the progression of daylight throughout the year reveals an enchanting seasonal rhythm. As January ushers in only 8 hours of daylight, the days gradually lengthen, reaching 10 hours by February and 11 hours in March. The arrival of spring brings a delightful surge with 13 hours in April, culminating in a radiant 15 hours by May. This trend continues into June, peaking at 16 hours of daylight, before slowly receding in the summer months. By August, the light wanes to 14 hours, and as autumn settles in, daylight diminishes to 12 hours in September, followed by 10 hours in October. The year cycles back, offering just 9 hours in November and returning to 8 hours as December arrives, showcasing the captivating ebb and flow of daylight that characterizes life in Diekirch.
In May, Diekirch experiences a noticeable increase in average wind speeds, reaching 4.0 m/s (9 mph), which is a delightful contrast to the calmer winds of spring. This rise marks May as the month's peak in wind activity, following a gradual decline from the winter months, where speeds hovered around 3.8 m/s in January. As the year progresses into summer, the winds tend to soften, with June recording a significant drop to 2.5 m/s (6 mph). This seasonal fluctuation highlights May as a transitional period, where the refreshing gusts underscore the vibrant blooming of nature, before the winds settle into the quieter cadence of late spring and early summer.
Weather in Diekirch varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Diekirch, focusing on differences in temperature, rainfall, humidity, and UV levels.
In May, temperatures in Diekirch experience a significant rise, ranging from a chilly minimum of -1°C (31°F) to a warm maximum of 30°C (87°F), with an average of 13°C (56°F). The humidity is relatively high at 81%, and the month sees approximately 69 mm (2.7 in) of precipitation over 12 days. In contrast, January is much colder, with temperatures dipping as low as -11°C (12°F) and peaking at only 12°C (54°F), averaging around 2°C (36°F). The humidity is slightly higher at 91%, and precipitation levels are similar, totaling 67 mm (2.6 in) over 11 days. For more detailed information, you can refer to Diekirch weather in January.
May and February present quite contrasting weather conditions. In February, temperatures range from a chilly -11°C (13°F) to a maximum of 19°C (66°F), with an average of only 4°C (39°F). Humidity is high at 90%, and while there is a similar amount of precipitation (70 mm) occurring over 11 days, the cold can make the rain feel more biting. In contrast, May enjoys much milder temperatures, from a minimum of -1°C (31°F) up to a warm 30°C (87°F), with an average of 13°C (56°F). The humidity remains relatively high at 81%, but the overall feel of the month is more pleasant as it welcomes the transition into summer. For a deeper look at February weather specifics, visit Diekirch weather in February.
In comparing the weather of May and March, May tends to be significantly warmer, with average temperatures ranging from a chilly minimum of 1°C (31°F) to a comfortable maximum of 30°C (87°F). In contrast, March experiences colder conditions, with temperatures dipping as low as -12°C (12°F) and reaching a high of 22°C (72°F). While May sees increased warmth with an average temperature of 13°C (56°F) and 69 mm of precipitation over 12 days, March is slightly wetter, receiving 76 mm over 14 days, albeit with mild humidity differences—81% in May compared to 88% in March. For more details on March weather, you can visit Diekirch weather in March.
In comparing the weather between April and May, May generally presents warmer temperatures with an average of 13°C (56°F), compared to April’s average of 9°C (49°F). May sees a broader temperature range, with minimums reaching -1°C (31°F) and maximums soaring up to 30°C (87°F), while April's extremes range from -3°C (27°F) to a maximum of 26°C (80°F). Although May experiences slightly more precipitation at 69 mm (2.7 in) across 12 days, April has a smaller total of 40 mm (1.6 in) over 9 days. Humidity levels in May are also marginally lower, recorded at 81% compared to April's 84%. For more detailed information, you can check out Diekirch weather in April.
In May, the weather begins to warm up, with temperatures ranging from a chilly minimum of -1°C (31°F) to a maximum of 30°C (87°F), and an average temperature of 13°C (56°F). This month typically sees about 69 mm (2.7 in) of precipitation over 12 days, with humidity averaging around 81%.
By June, the climate becomes noticeably warmer, with minimum temperatures rising to 6°C (44°F) and maxima reaching up to 34°C (93°F), resulting in a higher average temperature of 18°C (64°F). Interestingly, June also sees the same amount of precipitation—69 mm (2.7 in)—but over just 11 days, with humidity marginally increasing to 82%.
For more specific details about the weather in Diekirch during June, you can check Diekirch weather in June.
In May, temperatures can vary significantly, with a minimum of -1°C and an average of 13°C, rising to a maximum of 30°C. The month experiences approximately 69 mm of precipitation over 12 days, alongside a humidity level of 81%. In contrast, July offers warmer weather with a minimum temperature of 8°C and an average of 19°C, peaking at a high of 38°C. Precipitation increases slightly to 72 mm but occurs over just 9 days, with humidity levels remaining similar at 82%. For more detailed information, you can check Diekirch weather in July.
In May, temperatures range from a chilly low of -1°C (31°F) to a warm high of 30°C (87°F), averaging around 13°C (56°F). This month experiences approximately 69 mm (2.7 in) of precipitation over 12 days, with humidity levels reaching about 81%. In contrast, August offers milder lows starting at 6°C (43°F) and a higher average of 19°C (66°F), peaking at 35°C (95°F). Precipitation is slightly lower at 64 mm (2.5 in), also spread over 12 days, and humidity remains relatively consistent at 80%. For a more detailed look at weather patterns, you can visit Diekirch weather in August.
In May, temperatures begin to warm up, ranging from a chilly minimum of -1°C (31°F) to a comfortable maximum of 30°C (87°F), with an average of 13°C (56°F). The month experiences 69 mm (2.7 in) of rainfall over approximately 12 days, while humidity levels are relatively high at 81%. In contrast, September offers slightly warmer temperatures, with a minimum of 3°C (38°F) and a maximum reaching 32°C (90°F), averaging at 15°C (59°F). The precipitation is less at 58 mm (2.3 in) over about 9 days, and the humidity remains high at 83%. For more details on September weather, check out Diekirch weather in September.
In May, temperatures can range dramatically from a chilly -1°C (31°F) at night to a warm 30°C (87°F) during the day, with an average of 13°C (56°F). The month sees about 69 mm (2.7 in) of precipitation spread over 12 days, and humidity hovers around 81%. In contrast, October presents a cooler climate, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 25°C (77°F) and an average temperature of 11°C (51°F). Although October has slightly higher precipitation at 74 mm (2.9 in), it occurs over just 11 days, along with increased humidity at 89%. For more detailed insights, you can refer to Diekirch weather in October.
May and November exhibit distinct weather patterns that reflect the transition from spring to late autumn. In May, temperatures range from a chilly -1°C (31°F) at night to a warm 30°C (87°F) during the day, with an average temperature of 13°C (56°F). The month experiences approximately 69 mm (2.7 in) of precipitation over 12 days, accompanied by a humidity level of 81%.
In contrast, November sees cooler temperatures, with a minimum of -4°C (25°F), an average of 5°C (42°F), and a maximum of 19°C (67°F). It has a slightly lower precipitation total of 65 mm (2.6 in) across the same number of days, but the humidity rises to 91%, making the air feel even cooler. For more detailed insights about the weather in November, you can check Diekirch weather in November.
In May, the weather is generally milder, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 30°C (87°F) and an average of 13°C (56°F). The month experiences about 69 mm (2.7 in) of precipitation over approximately 12 days, accompanied by a humidity level of 81%. In contrast, December brings much cooler conditions, with temperatures dipping to a minimum of -5°C (23°F) and peaking at only 14°C (57°F), resulting in an average temperature of 4°C (39°F). This month is wetter, with precipitation totaling 111 mm (4.4 in) across 18 days and higher humidity at 93%. For more details on the December conditions specifically in Diekirch, you can check Diekirch weather in December.
As May unfolds in Diekirch, the weather transitions into a more temperate climate, distinguishing itself from the chill of previous months. With warmer days reaching up to 30°C and a mild average temperature of 13°C, the month invites outdoor activities and the blossoming of local flora. However, it does bring a fair share of precipitation, with nearly half of the month experiencing rain, which contributes to the lush landscapes that characterize the area during this time. The high humidity levels further enhance the warmth, creating a refreshing yet sometimes muggy atmosphere. For a detailed look at Diekirch's weather patterns throughout the year, explore Diekirch Climate.