Last updated: August 27, 2025
May in Luzern, Switzerland presents a captivating blend of spring warmth and refreshing rain. With a maximum temperature reaching 28°C (83°F), the month invites residents and visitors alike to revel in outdoor activities. However, the average temperature settles at a mild 11°C (52°F), while nighttime can dip to as low as -6°C (21°F). Rainfall is noteworthy, accumulating to 172 mm (6.8 in) over 19 days, contributing to the region's lush greenery. Additionally, the humidity level hovers around a substantial 80%, enhancing the fresh, fragrant atmosphere typical of this picturesque locale during May.
As spring transitions into summer, Luzern, Switzerland experiences a delightful shift in temperatures during May. With minimums hovering around -6°C (21°F), the chill of winter begins to fade, paving the way for a comfortable average of 11°C (52°F). This month marks a significant leap towards warmth, as high temperatures can reach up to 28°C (83°F), inviting residents and visitors to bask in the blossoming landscape. The gradual rise in temperatures reflects a broader trend of increasing warmth that will continue into the summer months, making May an ideal time to explore the scenic beauty of Luzern as it awakens from its wintry slumber.
May stands out in Luzern, Switzerland, as a month of significant precipitation, with an impressive 172 mm (6.8 in) recorded over 19 rainy days. This spike not only marks May as the wettest month so far but also signals the onset of increased rainfall as the region transitions into summer. Compared to the preceding months, where precipitation levels hovered around the 100-130 mm mark, May's totals surge, foreshadowing the even wetter months ahead in June and July. The trend illustrates a seasonal peak, inviting lush greenery and vibrant landscapes, though it also suggests that visitors should be prepared for a splash or two while exploring the picturesque surroundings.
In Luzern, Switzerland, May marks a transition towards drier conditions, with humidity dipping to 80%—a noticeable drop from the winter months when levels hovered above 90%. This reduction in humidity mirrors a gradual trend seen throughout spring, where April's 84% sets the stage for May's more moderate atmosphere. As the region warms, the shift in humidity provides a refreshing escape, hinting at the balance between comfort and the springtime bloom. However, as summer approaches in June, humidity rises slightly again to 82%, reminding residents that while May brings relief, the lush environment of Luzern is never too far from its characteristic moisture. This cyclical dance of humidity underscores the allure of Luzern’s climate, making it an appealing destination year-round.
As May rolls into Luzern, Switzerland, the UV Index soars to 8, marking it as a time for heightened awareness regarding sun exposure. This category of very high indicates that outdoor enthusiasts should take precautionary measures, as the burn time significantly drops to just 15 minutes. Compared to the gentle beginnings of the year, where UV levels hovered at 2 in January, the sharp rise in May signals a transition into the summer months. This is part of a pattern where UV levels peak in late spring and early summer, reaching a seasonal high of 9 in June and July. Stay informed and protected as you enjoy the beautiful May sunshine! For more information on UV levels throughout the year, visit Luzern UV Index.
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As spring transitions into early summer, May in Luzern, Switzerland, shines brightly with 370 hours of sunshine—a noticeable peak in the year’s light offerings. Following a steady increase from 164 hours in January to 358 hours in April, the month showcases a delightful culmination of warmth and brightness that invites both locals and visitors to soak in the beauty of the lakeside city. The enchanting scenery of Luzern comes alive under the gentle sun, making May an ideal time for outdoor adventures and leisurely strolls. Leading into the sunniest month of July with 415 hours, May serves as a beautiful prelude to the vibrant summer ahead, setting the stage for a season filled with outdoor splendor.
In Luzern, Switzerland, the likelihood of sunny weather in May sees a slight dip to 30%, marking a shift from the preceding months. As spring unfolds, April boasts a more promising 46% chance of sunshine, hinting at the vibrant life that is typical as the region transitions into warmer weather. Although May's percentages dip, it still enjoys a more favorable chance compared to the darker winter months, with January's sun visibility at a mere 14%. The trend suggests that while May may not deliver the same robust sunshine as the peak spring months, it nonetheless offers a refreshing respite from the gloom of colder seasons, paving the way for the sunnier days of summer.
As spring transforms into summer in Luzern, Switzerland, May emerges as a delightful month marked by 15 hours of daylight. This notable increase from the 8 hours in January reflects the gradual lengthening of days as the year progresses. After April's warm embrace of 13 hours, May ushers in longer evenings that invite outdoor activities and scenic strolls along the beautiful lakeside. Following May, the daylight remains a generous 15 hours through June and July, creating a vibrant atmosphere that encourages exploration and connection with nature. By August, however, the days begin to recede slightly, easing into autumn's embrace. Overall, the trend in Luzern is a steady crescendo of daylight hours that not only enhances the natural beauty of the region but also uplifts the spirit of its inhabitants.
In May, Luzern enjoys a slight uptick in average wind speed, reaching 1.7 m/s (4 mph), making it one of the breezier months in the region. This gentle breeze is a welcome contrast to the calmer conditions of the preceding months, where wind speeds hovered around 1.5 m/s or lower from January to April. As spring blossoms into summer, the wind tends to settle back to 1.3 m/s (3 mph) in the following months of June through August. Thus, May stands out as a refreshing transition, embodying the vibrant energy of nature awakening, while also hinting at the serene, more subdued winds that follow.
Weather in Luzern varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Luzern, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present quite contrasting weather patterns. In May, temperatures range from a chilly minimum of -6°C (21°F) to a warm average of 11°C (52°F) and can peak at 28°C (83°F). This month experiences a significant amount of precipitation, totaling 172 mm (6.8 in) over about 19 days, with an average humidity of 80%. In contrast, January is considerably colder, with temperatures ranging from a low of -13°C (10°F) to an average of 0°C (32°F) and a maximum of 12°C (54°F). While January sees less rainfall at 138 mm (5.4 in) across 13 days, it has higher humidity levels at 92%. For more information, check out Luzern weather in January.
When comparing the weather in May and February, it is clear that May offers a much warmer climate. In May, temperatures range from a brisk minimum of -6°C (21°F) to a pleasant maximum of 28°C (83°F), with an average of 11°C (52°F). February, on the other hand, is colder, with temperatures dipping to -17°C (2°F) at night and only reaching a maximum of 16°C (62°F) during the day, averaging just 2°C (36°F). Additionally, May experiences significantly more rainfall, with 172 mm (6.8 in) over 19 days, compared to February's 107 mm (4.2 in) over 12 days. Humidity levels are slightly higher in February at 89%, contrasted with May's 80%. If you're interested in more detailed insights about February's weather in Luzern, check out Luzern weather in February.
When comparing the weather in March and May, it’s clear that May brings significantly warmer temperatures. In March, the average temperature hovers around 4°C (40°F), with a chilly minimum of -13°C (8°F), while May boasts a more comfortable average of 11°C (52°F), with highs reaching up to 28°C (83°F). Precipitation is more frequent in May, with rain falling on 19 days and accumulating to 172 mm (6.8 in), compared to March’s 126 mm (5.0 in) over 16 days. Humidity also tends to be higher in March at 87%, compared to May’s 80%. For a detailed look at the March climate, you can check out this link: Luzern weather in March.
In comparing the weather between April and May, a noticeable warming trend can be observed. May experiences a broader temperature range, with minimum temperatures dropping to -6°C (21°F), an average of 11°C (52°F), and maximums reaching 28°C (83°F), compared to April's minimum of -6°C (21°F), an average of 8°C (46°F), and maximum of 23°C (73°F). Additionally, May sees increased precipitation, totaling 172 mm (6.8 in) over 19 days, while April has less rain, with 102 mm (4.0 in) over 12 days. Humidity levels in May are slightly lower at 80%, compared to April's 84%. For more detailed insights, you can check this link: Luzern weather in April.
May and June both showcase a transition into warmer weather, but they present distinct characteristics. In May, temperatures oscillate from a chilly minimum of -6°C (21°F) to a pleasant maximum of 28°C (83°F), with an average of 11°C (52°F). However, the month is quite rainy, recording 172 mm (6.8 in) of precipitation over 19 days, contributing to a high humidity level of 80%.
In contrast, June brings a noticeable increase in warmth, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 32°C (90°F) and an average of 16°C (62°F). Despite the rise in temperatures, June sees slightly more precipitation at 202 mm (8.0 in) over 18 days, maintaining high humidity levels of 82%. For more detailed insights, you can explore Luzern weather in June.
In May, the weather presents a wide range of temperatures, with a minimum of -6°C (21°F) and a maximum of 28°C (83°F), resulting in an average temperature of 11°C (52°F). The month experiences considerable rainfall, totaling 172 mm (6.8 in) over 19 days, while humidity remains high at 80%. In contrast, July offers warmer temperatures, with a minimum of 8°C (47°F), an average of 18°C (64°F), and a maximum of 31°C (89°F). Although July sees slightly more precipitation at 199 mm (7.8 in) over 18 days, the humidity increases to 83%. For more detailed insights, you can check Luzern weather in July.
May and August showcase distinct weather patterns, with May displaying a broader temperature range, from a chilly minimum of -6°C (21°F) to a pleasant maximum of 28°C (83°F), while the average temperature hovers around 11°C (52°F). In contrast, August typically presents milder conditions, with a minimum temperature of 8°C (46°F), an average of 18°C (64°F), and a maximum of 30°C (87°F). Precipitation levels are relatively similar; May sees 172 mm (6.8 in) over 19 days, whereas August experiences slightly higher precipitation of 193 mm (7.6 in) but over fewer days (16 days). Both months maintain a consistent humidity level of 80%. For more details on August weather, you can check Luzern weather in August.
May and September present contrasting weather patterns. In May, temperatures range from a chilly -6°C (21°F) to a warm 28°C (83°F), with an average of 11°C (52°F). This month sees significant rainfall, totaling 172 mm (6.8 in) over 19 days, and the humidity hovers around 80%. In contrast, September features milder temperatures, with a minimum of 3°C (37°F) and a maximum of 25°C (78°F), averaging 14°C (58°F). It also experiences less precipitation, with 138 mm (5.4 in) falling over 15 days, while humidity slightly increases to 83%. For more specific information about September in Luzern, you can visit the link: Luzern weather in September.
In comparing the weather of May and October, it’s clear that May experiences a broader range of temperatures, from chilly lows of -6°C (21°F) to pleasant highs of 28°C (83°F), with an average temperature of 11°C (52°F). This month also sees significant rainfall, totaling 172 mm (6.8 in) over 19 days, with humidity levels around 80%. In contrast, October has cooler temperatures, with minimums of 1°C (34°F) and maximums of 21°C (70°F), averaging at 10°C (50°F). Although October receives slightly less precipitation at 158 mm (6.2 in) over 14 days, it has a higher humidity level of 90%. For a detailed look at October weather in Luzern, visit Luzern weather in October.
May and November present quite distinct weather patterns. In May, temperatures range from a chilly -6°C (21°F) at night to a warm 28°C (83°F) during the day, with an average temperature of 11°C (52°F). The month experiences significant precipitation, with 172 mm (6.8 in) falling over 19 days and humidity levels around 80%. In contrast, November is noticeably cooler, with temperatures peaking at 20°C (68°F) and dipping to -4°C (26°F) at night, leading to a lower average of 5°C (41°F). Furthermore, November sees less precipitation, totaling 97 mm (3.8 in) over 13 days, but the humidity is higher at 88%. For a closer look at what to expect during this month, check out Luzern weather in November.
May and December in Luzern present quite contrasting weather conditions. In May, temperatures fluctuate from a chilly -6°C (21°F) at night to a warm 28°C (83°F) during the day, averaging around 11°C (52°F). This month typically sees about 172 mm (6.8 in) of precipitation over approximately 19 days, paired with an 80% humidity level, making it feel quite fresh and lively. Conversely, December brings cooler temperatures, with lows of -9°C (16°F) and highs reaching only 11°C (53°F), averaging just 2°C (35°F). Precipitation is slightly lower at 169 mm (6.6 in), occurring over 18 days, but the humidity rises to 90%, contributing to a damp and crisp atmosphere. For more detailed insights into December weather in Luzern, you can visit Luzern weather in December.
As May unfolds in Luzern, the weather presents a delightful transition into warmer months, showcasing a fascinating mix of mild temperatures and intermittent rainfall. Unlike the chill of winter, May offers a significant uptick in warmth, with milder averages and an infusion of sunny days inviting outdoor adventures. However, the month isn't without its fair share of precipitation, falling more frequently than in summer but less so than in the earlier spring months. This balanced humidity creates a refreshing atmosphere, perfect for enjoying Luzern's breathtaking landscapes. For a deeper understanding of the yearly patterns that shape this picturesque city, explore Luzern Climate.