April Weather in Luzern, Switzerland

Last updated: August 27, 2025

April in Luzern, Switzerland offers a delightful transition into spring, characterized by a maximum temperature reaching 23°C (73°F) and a refreshing average of 8°C (46°F). Expect cool nights, with temperatures dipping as low as -6°C (21°F). This month brings moderate rainfall, with 102 mm (4.0 in) recorded over about 12 days, creating a lush and vibrant landscape. Humidity levels hover around 84%, enhancing the fresh, crisp air that defines this scenic Swiss locale. Plan your visit to enjoy the blooming nature and captivating scenery that April has to offer!

April Temperature in Luzern

April in Luzern, Switzerland, marks a noticeable transition towards spring, as temperatures begin to warm up from the brisk chill of winter. With minimums hovering around -6°C (21°F) and averages reaching 8°C (46°F), visitors can expect a refreshing chill in the air that hints at the vibrant season ahead. Daytime highs climb to a delightful 23°C (73°F), inviting outdoor activities against the backdrop of the stunning Swiss landscape. This shift not only encourages the blooming of flowers but also offers longer days filled with sunshine, making April an ideal time to explore Luzern's scenic beauty and cultural attractions. As the month progresses, the air becomes increasingly lively, signaling the departure of winter and ushering in a season of warmth and renewal.

April Weather in Luzern: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Luzern, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Luzern, April 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).
JanFebMarAprMayJunJulAugSepOctNovDec323640465261646457504135
Data source: Temperature data for Luzern 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.

April Precipitation in Luzern

In April, Luzern, Switzerland experiences a notable shift as spring settles in, contributing to a total precipitation of 102 mm (4.0 in) over 12 days. While this amount is slightly lower than the preceding months, it reflects the typical pattern of transitioning from the wetter winter months into a more variable spring climate. Compared to March's 126 mm, April's rainfall is a gentle reminder of the approaching summer, showcasing a decrease in precipitation while maintaining a relatively consistent number of rainy days. This trend of gradually declining rainfall continues into May, making the onset of the warmer season even more palpable. The moderation in April's precipitation sets the stage for the lush greenery that the region is renowned for, as nature begins to awaken.

April Precipitation Trends in Luzern

The chart displays monthly precipitation patterns in Luzern, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Luzern, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec13810712610217220219919313815897169
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Luzern

As spring settles in Luzern, April brings a refreshing shift in humidity, dipping to 84% compared to the higher levels experienced in the earlier winter months. This decrease marks a gentle transition from the moist, chilly air of winter, where humidity peaks at a notable 92% in January. Following a gradual decline over the preceding months, from 89% in February to 87% in March, April's humidity continues the trend of decreasing moisture, suggesting a welcoming breath of fresh air as warmer days approach. As spring unfolds, the subsequent months see humidity further decrease, with May bringing 80% humidity, signaling a shift toward the drier summer season that lies ahead. This gradual pattern highlights Luzern's cyclical climate, blending the crispness of spring with the promise of sunnier days.

April Average Humidity in Luzern

This chart illustrates the average monthly humidity levels in Luzern, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Luzern is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Luzern

In April, Luzern, Switzerland, experiences a notable increase in the UV Index, soaring to 6—a clear indicator of high exposure risk. With a reduced burn time of just 25 minutes, sun-seekers should be particularly vigilant as they enjoy the blossoming spring. This month marks a significant leap from the moderate levels seen in March, emphasizing the seasonal shift towards stronger sunlight. As temperatures rise, it’s essential to protect your skin, paving the way for a sun-safe month ahead. For more detailed information on UV levels throughout the year, check out the Luzern UV Index.

Maximum UV Index Levels in Luzern for April

The chart shows the monthly maximum UV Index (UVI) for Luzern in April, 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 April, the maximum UV index in Luzern typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986432
Data source: Luzern April 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.

April Sunshine in Luzern

April in Luzern, Switzerland, unveils a delightful shift in daylight, as the city basks in 358 hours of sunshine, marking a significant increase from the 300 hours recorded in March. This trend of growing brightness continues into May and June, where sunny days flourish further, reaching peaks of 370 and 385 hours respectively. The steady climb from the duller winter months, with 164 hours in January and only 185 hours in December, highlights a captivating transformation—nature awakens, and the spirit of the city brightens. Amidst the breathtaking alpine backdrop, April serves as a prelude to summer, inviting both locals and visitors to revel in the more vibrant landscapes and the warmth of the sun.

Monthly Sunshine Duration in Luzern: April Highlighted

The April sunshine duration represents the total number of hours Luzern experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec164h228h300h358h370h385h415h384h320h279h219h185h
Data source: Luzern April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Luzern During April

As April arrives in Luzern, Switzerland, the likelihood of sunny weather experiences a notable uptick, with a 46% chance of sunshine. This increase marks a significant improvement from the earlier months of the year—January and February, with their meager chances of 14% and 35%, respectively. Transitioning into spring, March sees further progress with a 43% chance, setting a promising stage for April. However, as the warmer months approach, the sun's presence wavers slightly in May and beyond, dropping to 30% in May and fluctuating around the 30-36% range through the summer. Overall, April stands out as a pivotal month, representing a delightful shift toward sunnier days and the vibrant revival of the season.

Percentage of Sunny Days in April in Luzern

The chart illustrates the percentage of sunny days in Luzern throughout the year, with April 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 Luzern experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec14%35%43%46%30%31%33%36%36%36%24%30%
Data source: Luzern April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Luzern in April

As spring unfolds in Luzern, Switzerland, April brings a delightful increase in daylight, stretching to an average of 13 hours per day. This marks a significant leap from the 11 hours in March, as the days grow longer and warmer, inviting locals and visitors alike to embrace the outdoors. Following the pattern established through the year, April's daylight signals the transition into the vibrant summer months ahead, where daylight hours will peak at 15 hours in May and June—a refreshing contrast to the shorter days of winter, which barely reach 8 hours in January and December. This gradual extension of sunlight not only enhances the beauty of the picturesque landscapes but also energizes the community, encouraging a jubilant spirit as nature awakens.

Average Daylight Hours in Luzern for April

The chart illustrates the variation in daylight duration in Luzern throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 58m10h 17m11h 56m13h 37m15h 4m15h 48m15h 25m14h 7m12h 30m10h 49m9h 20m8h 33m
Data source: Luzern daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Luzern

As April unfolds in Luzern, Switzerland, the wind gently whispers through the city, with an average speed of 1.5 m/s (3 mph)—a subtle breeze that invites residents and visitors alike to embrace the outdoors. Following a slight dip in March, where the winds measured at 1.4 m/s (3 mph), April showcases a brief resurgence in activity, just shy of May's anticipated 1.7 m/s (4 mph). This modest uptick signifies a transition, as Luzern prepares for warmer months while still offering a tranquil atmosphere. Overall, the patterns indicate a gradual increase in wind speeds through the spring, creating a refreshing environment amidst the city's stunning landscapes.

Average April Wind Speed in Luzern

The chart displays monthly wind speed patterns in Luzern, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.61.41.5 m/s1.71.31.31.31.31.41.31.5
Data source: Luzern April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Luzern Compares to Other Months

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

In comparing the weather of April and January, April emerges as a notably milder month. While January experiences colder temperatures with minimums reaching -13°C (10°F) and an average of 0°C (32°F), April sees a significant rise in temperatures, with lows of -6°C (21°F) and averages around 8°C (46°F). Precipitation levels in January are slightly higher at 138 mm (5.4 in) over 13 days, compared to April's 102 mm (4.0 in) across 12 days, indicating that while both months are somewhat rainy, January tends to be wetter. Furthermore, the humidity in January is higher at 92%, compared to April's 84%, contributing to the chillier feel of the former. For a detailed look at January's conditions, check out Luzern weather in January.

April and February present distinct weather patterns as the transition from winter to spring occurs. In February, temperatures are significantly colder, with a minimum of -17°C (2°F) and an average of just 2°C (36°F), while April enjoys milder conditions, with average temperatures around 8°C (46°F) and a maximum reaching 23°C (73°F). Precipitation levels are relatively similar, with February receiving 107 mm (4.2 in) and April slightly less at 102 mm (4.0 in), both spread over 12 days. However, the humidity is higher in February at 89%, compared to April's 84%, making February feel even chillier. For more details on February weather in Luzern, you can visit Luzern weather in February.

In comparing the weather in March and April, April tends to be milder and more pleasant overall. The average temperature in April is 8°C (46°F), which is a notable increase from March's average of 4°C (40°F). Additionally, April sees a maximum temperature that can rise to 23°C (73°F), while March peaks at a cooler 18°C (65°F). However, April experiences slightly more precipitation than March, with 102 mm (4.0 in) falling over 12 days compared to March's 126 mm (5.0 in) over 16 days. Humidity levels in both months are relatively high, with April at 84% and March at 87%. For a more detailed look at March's weather, you can check Luzern weather in March.

April and May exhibit notable differences in weather patterns. In April, temperatures range from a minimum of -6°C (21°F) to a maximum of 23°C (73°F), with an average of 8°C (46°F). The month sees about 102 mm (4.0 in) of precipitation over 12 days, accompanied by a humidity level of 84%. In contrast, May offers warmer temperatures, with minimums remaining at -6°C (21°F) and maximums climbing to 28°C (83°F), leading to an average temperature of 11°C (52°F). However, precipitation increases to 172 mm (6.8 in) over 19 days, while humidity slightly decreases to 80%. For more detailed information about the weather in May, you can check Luzern weather in May.

April and June exhibit significant differences in weather patterns. In April, temperatures range from a chilly minimum of -6°C (21°F) to a mild maximum of 23°C (73°F), with an average of 8°C (46°F). The month sees considerable rainfall, with 102 mm (4.0 in) over 12 days, accompanied by high humidity at 84%. Conversely, June experiences a more temperate climate, with minimums of 5°C (41°F), average highs of 16°C (62°F), and peaks reaching 32°C (90°F). Rainfall increases to 202 mm (8.0 in) across 18 days, and humidity remains slightly lower at 82%. For a detailed look at June weather, you can check Luzern weather in June.

April weather is characterized by a wider temperature range, with minimums dipping as low as -6°C (21°F) and average temperatures around 8°C (46°F). In contrast, July enjoys milder conditions, with a minimum temperature of 8°C (47°F) and an average of 18°C (64°F), peaking at a warm 31°C (89°F). While April experiences 102 mm (4.0 in) of precipitation over 12 days, July sees increased rainfall with 199 mm (7.8 in) across 18 days. Humidity levels are fairly consistent, with April at 84% and July slightly lower at 83%. For more specific details about July weather, please refer to Luzern weather in July.

April and August present distinct weather contrasts. In April, temperatures range from a chilly minimum of -6°C (21°F) to a mild maximum of 23°C (73°F), with an average temperature of 8°C (46°F). This month experiences about 102 mm (4.0 in) of precipitation over approximately 12 days, contributing to a high humidity level of 84%. In contrast, August offers warmer conditions, with temperatures varying from a minimum of 8°C (46°F) to a high of 30°C (87°F), and an average of 18°C (64°F). It also sees more rainfall, with 193 mm (7.6 in) over 16 days, while the humidity remains slightly lower at 80%. For a deeper dive into August weather specifics, visit Luzern weather in August.

In comparing the weather of April and September, April tends to start off with colder temperatures, featuring a minimum of -6°C (21°F) and an average of 8°C (46°F). By contrast, September experiences milder conditions, with a minimum temperature of 3°C (37°F) and an average of 14°C (58°F). While both months receive notable precipitation, April records 102 mm (4.0 in) over about 12 days, whereas September is slightly wetter with 138 mm (5.4 in) across 15 days. Additionally, humidity levels in both months are similar, with April at 84% and September at 83%. For those interested in more detailed weather patterns, check out Luzern weather in September.

April and October present distinct weather patterns. In April, temperatures range from a chilly minimum of -6°C (21°F) to a pleasant average of 8°C (46°F), peaking at a comfortable 23°C (73°F). The month experiences about 102 mm (4.0 in) of precipitation over 12 days, with humidity levels around 84%. In contrast, October's temperatures are milder, with a minimum of 1°C (34°F), an average of 10°C (50°F), and a maximum of 21°C (70°F). However, it sees more rain, totaling 158 mm (6.2 in) over 14 days, and a slightly higher humidity level of 90%. For those interested in specific conditions, explore the detailed insights at Luzern weather in October.

April and November exhibit distinct weather patterns, reflecting the transition between seasons. In April, temperatures range from a chilly -6°C (21°F) at night to a comfortable high of 23°C (73°F) during the day, with an average of 8°C (46°F). This month typically sees about 102 mm (4.0 in) of precipitation over 12 days and maintains a humidity level of 84%. In contrast, November presents slightly milder temperatures, with nighttime lows of -4°C (26°F) and daytime highs reaching 20°C (68°F), averaging around 5°C (41°F). The month boasts similar precipitation levels, at 97 mm (3.8 in), but occurs over a slightly longer period of about 13 days, accompanied by higher humidity at 88%. For more details on November weather, check out Luzern weather in November.

April and December present distinctly different weather patterns. In April, temperatures range from a minimum of -6°C (21°F) to a maximum of 23°C (73°F), with an average of 8°C (46°F). The month experiences 12 days of precipitation, totaling 102 mm (4.0 in), while humidity sits at a relatively comfortable 84%. In contrast, December features colder temperatures, with a minimum of -9°C (16°F) and a maximum of 11°C (53°F), averaging just 2°C (35°F). This month is wetter, with 18 days of precipitation accumulating to 169 mm (6.6 in) and higher humidity at 90%. For a detailed look at December weather specifics, you can visit Luzern weather in December.

Compare Luzern's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Luzern

April in Luzern ushers in a delightful shift from the chill of winter, with temperatures gradually rising and daytime warmth becoming more common. While the average temperature is still relatively cool, hints of spring are evident as the month showcases more moderate conditions compared to the colder months. However, be prepared for rain, as April sees an increase in precipitation days, making it one of the wetter months. With an average humidity of 84%, the air feels brisk and refreshing. This transitional weather provides a unique opportunity to experience Luzern’s blossoming beauty alongside the occasional rainy day. For a deeper insight into what to expect, check out Luzern Climate.