April Weather in Interlaken, Switzerland

Last updated: August 27, 2025

April in Interlaken, Switzerland offers a dynamic blend of springtime charm and variable weather. During this month, temperatures typically reach a maximum of 19°C (67°F), presenting a pleasant contrast to the chillier average of 5°C (42°F), with nighttime lows dipping to a brisk minimum of -12°C (10°F). Visitors can expect around 94 mm (3.7 in) of precipitation spread over 12 days, contributing to the lush, vibrant scenery that Interlaken is renowned for. With humidity levels averaging 84%, the atmosphere is refreshingly crisp, making April a unique time to explore the stunning landscapes of this picturesque Swiss destination.

April Temperature in Interlaken

April marks a delightful transition in Interlaken, Switzerland, as winter gradually gives way to spring. With minimum temperatures hovering around -12°C (10°F) and average highs peaking at a pleasant 19°C (67°F), this month offers a refreshing change from the chill of earlier months. The average temperature of 5°C (42°F) showcases a notable warming trend, inviting visitors to explore the stunning landscapes as they begin to bloom. By the end of April, the days become longer and sunnier, setting the stage for the vibrant summer months ahead. As you traverse this picturesque region, you can feel the pulse of nature awakening, making it an ideal time to experience the breathtaking beauty that Interlaken has to offer.

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

The chart illustrates April temperature patterns in Interlaken, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Interlaken, 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).
JanFebMarAprMayJunJulAugSepOctNovDec263035414857605953453529
Data source: Temperature data for Interlaken 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 Interlaken

In April, Interlaken experiences a noticeable drop in precipitation, with 94 mm (3.7 in) over the month, marking a transition from the wetter spring months of March and the forthcoming deluges of May. With about 12 days of rain, April serves as a gentle prelude to the increasingly wet conditions of late spring and summer. This decline in precipitation compared to March’s 125 mm (4.9 in) suggests a gradual shift toward milder, sunnier weather, allowing the picturesque scenery of the Swiss Alps to begin blooming. As the season progresses, the skies will contribute to a dramatic increase in rainfall, but for now, April offers a crisp, refreshing atmosphere that beckons outdoor exploration.

April Precipitation Trends in Interlaken

The chart displays monthly precipitation patterns in Interlaken, 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 Interlaken, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1231031259418222521920312413897175
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Interlaken

As spring unfolds in Interlaken, Switzerland, April brings a noticeable dip in humidity, settling at 84%. This drop marks a continuation of the gradual decrease from the winter months, where humidity levels hovered around 92% in January. Following the trend, May further lowers the humidity to 80%, indicating a shift toward drier conditions as the region transitions into the warmer months. The April humidity, while still relatively high compared to many other regions, reflects the refreshing briskness of spring, inviting visitors to enjoy the picturesque landscapes without the heaviness associated with the winter months. This evolution in humidity not only enhances the overall experience of the enchanting surroundings but also sets the stage for the pleasant, mild days that characterize the approaching summer.

April Average Humidity in Interlaken

This chart illustrates the average monthly humidity levels in Interlaken, 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 Interlaken 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 Interlaken

As April arrives in Interlaken, Switzerland, the UV Index rises to 7, marking a transition to high exposure levels. This increase indicates that sun protection becomes essential, with a burn time of just 25 minutes for fair skin. Compared to the preceding months, where the UV Index ranged from 2 in January to 6 in March, April's levels signal the onset of more intense sunlight, paving the way for even higher readings in the upcoming months of May and June. As the season progresses, it’s crucial to stay vigilant about sun safety. For more detailed information, visit Interlaken UV Index.

Maximum UV Index Levels in Interlaken for April

The chart shows the monthly maximum UV Index (UVI) for Interlaken 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 Interlaken typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Interlaken 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 Interlaken

In April, Interlaken basks in a remarkable 356 hours of sunshine, marking a clear transition to the vibrant warmth of spring. This surge in sunlight is part of a stunning upward trend that begins in January with only 169 hours and steadily climbs to a peak of 416 hours in July. The increase from 299 hours in March to 356 hours in April not only highlights the arrival of longer days but also invites both locals and visitors to indulge in outdoor activities against the stunning backdrop of the Swiss Alps. With May following closely with 361 hours, it sets the stage for a season filled with breathtaking views and endless sunlight, establishing Interlaken as a prime destination for sun-seekers and nature lovers alike.

Monthly Sunshine Duration in Interlaken: April Highlighted

The April sunshine duration represents the total number of hours Interlaken 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.
JanFebMarAprMayJunJulAugSepOctNovDec169h229h299h356h361h386h416h384h322h285h230h195h
Data source: Interlaken April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Interlaken During April

In Interlaken, Switzerland, the likelihood of sunny weather experiences a notable uptick as spring unfolds. From a modest 19% in January, the chances of sunshine steadily increase, reaching 44% by March. As April rolls in, this trend continues with a promising 48% chance of enjoying those coveted sunny days. While May sees a slight decline to 31%, the overall pattern indicates that spring is the season where Interlaken's skies begin to shine, inviting visitors to embrace the beauty of the blooming landscape.

Percentage of Sunny Days in April in Interlaken

The chart illustrates the percentage of sunny days in Interlaken 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 Interlaken experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%39%44%48%31%33%34%38%38%43%35%41%
Data source: Interlaken April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Interlaken in April

As spring unfolds in Interlaken, Switzerland, April brings a delightful increase in daylight, basking the region in nearly 13 hours of sunshine. This marks a significant leap from March's 11 hours, heralding the longer, brighter days ahead. With the daylight hours steadily rising, April serves as a vibrant transition month, paving the way for May's peak of 15 hours. This gradual infusion of light not only enhances the scenic beauty of the Swiss landscape but also invites both locals and visitors to revel in outdoor adventures on the trails and by the lakes. The surge in daylight from winter's modest offerings creates an invigorating atmosphere, as nature awakens and blossoms into life.

Average Daylight Hours in Interlaken for April

The chart illustrates the variation in daylight duration in Interlaken throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h10h 18m11h 56m13h 36m15h 2m15h 46m15h 22m14h 6m12h 30m10h 50m9h 22m8h 36m
Data source: Interlaken daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Interlaken

April in Interlaken, Switzerland, brings a gentle breeze, with average wind speeds hovering at 1.5 m/s (3 mph). This marks a continuation of a trend seen since March, where the winds have remained consistently mild, creating an inviting atmosphere as spring fully sets in. Compared to the slightly higher speeds of 1.6 m/s (4 mph) in both January and May, April's winds create a soft, refreshing air, perfect for outdoor adventures. As one of the calmer months of the year, April offers a serene backdrop for exploring Interlaken's stunning landscapes while enjoying the subtle whispers of springtime breezes.

Average April Wind Speed in Interlaken

The chart displays monthly wind speed patterns in Interlaken, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.71.51.5 m/s1.61.31.41.31.31.51.51.7
Data source: Interlaken April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Interlaken Compares to Other Months

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

April and January exhibit distinctly different weather patterns. In January, temperatures are significantly colder, with a minimum of -19°C (-1°F) and an average of -3°C (26°F), while April sees milder temperatures ranging from a minimum of -12°C (10°F) to an average of 5°C (42°F). Precipitation levels are higher in January, totaling 123 mm (4.9 in) for the month compared to April's 94 mm (3.7 in), although both months share a similar number of rainy days at 12. Humidity remains high in both months, with April at 84% and January slightly higher at 92%. For more details about January weather, you can visit Interlaken weather in January.

April and February showcase distinct contrasts in weather. In April, temperatures range from a minimum of -12°C (10°F) to a maximum of 19°C (67°F), averaging around 5°C (42°F). The month experiences about 94 mm (3.7 in) of precipitation over 12 days, with humidity at 84%. In comparison, February is colder, with temperatures dropping to a minimum of -18°C (-1°F) and peaking at 14°C (58°F), averaging -1°C (31°F). This month sees slightly higher precipitation at 103 mm (4.0 in) over 11 days, accompanied by a higher humidity level of 89%. For more details about February's weather, visit Interlaken weather in February.

April experiences significantly milder temperatures compared to March, with minimums of -12°C (10°F) and an average of 5°C (42°F) in April, compared to March's colder minimum of -23°C (-9°F) and average of 2°C (36°F). While both months see a variety of precipitation, April records 94 mm (3.7 in) over 12 days, which is less than March's 125 mm (4.9 in) over 15 days. Humidity levels remain relatively high in both months, with April at 84% and March slightly higher at 87%. For more detailed insights on March weather, you can check Interlaken weather in March.

April and May present contrasting yet transitional weather patterns. In April, temperatures range from a chilly minimum of -12°C (10°F) to a comfortable maximum of 19°C (67°F), with an average of 5°C (42°F). This month experiences 94 mm (3.7 in) of precipitation over 12 days, contributing to a relatively high humidity of 84%. In contrast, May shows a rise in temperatures, with minimums of -7°C (20°F) and maximums reaching 25°C (78°F), while the average temperature rises to 9°C (48°F). However, it also brings significantly more rainfall, totaling 182 mm (7.2 in) across 19 days, and a slightly lower humidity of 80%. For those interested in more detailed weather patterns for May, you can refer to Interlaken weather in May.

April's weather is characterized by a cool climate, with temperatures ranging from a chilly -12°C (10°F) to a mild 19°C (67°F) and an average of 5°C (42°F). The month experiences moderate precipitation, totaling 94 mm (3.7 in) over 12 rainy days, and has a relatively high humidity level of 84%. In contrast, June brings a noticeable warming trend, with temperatures ranging from 1°C (34°F) to a maximum of 29°C (85°F) and an average of 14°C (57°F). However, June is also wetter, with precipitation reaching 225 mm (8.9 in) across 18 days, and a slightly lower humidity of 82%. For a detailed look at weather conditions during this month, you can visit Interlaken weather in June.

April and July showcase contrasting weather patterns. In April, temperatures range from a chilly minimum of -12°C (10°F) to a mild maximum of 19°C (67°F), with an average of 5°C (42°F). The month experiences relatively high humidity at 84% and moderate precipitation, totaling 94 mm (3.7 inches) over 12 days. In contrast, July presents a much warmer climate, where temperatures fluctuate between a minimum of 5°C (41°F) and a maximum of 29°C (84°F), with an average of 15°C (60°F). Rainfall increases significantly to 219 mm (8.6 inches) over 18 days, while humidity remains slightly lower at 83%. For more detailed insights on July weather, you can visit Interlaken weather in July.

April and August present contrasting weather profiles. In April, temperatures can drop as low as -12°C (10°F), with an average temperature of around 5°C (42°F) and highs reaching 19°C (67°F). This month experiences moderate precipitation, totaling 94 mm (3.7 in) over about 12 rainy days, coupled with relatively high humidity levels at 84%. In contrast, August enjoys milder minimum temperatures of 5°C (41°F) and averages around 15°C (59°F), peaking at 28°C (82°F). Although it is warmer, August witnesses heavier rainfall, amounting to 203 mm (8.0 in) across 18 days, while the humidity remains slightly lower at 80%. For more detailed information on August weather, check Interlaken weather in August.

April and September showcase a transition in weather patterns, with April typically experiencing colder temperatures and higher humidity. In April, the temperature ranges from a chilly minimum of -12°C (10°F) to a pleasant maximum of 19°C (67°F), averaging around 5°C (42°F). This month sees an average of 94 mm (3.7 in) of precipitation over 12 days, accompanied by a humidity level of 84%.

In contrast, September offers a milder climate with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 23°C (73°F) and an average temperature of 11°C (53°F). While it is generally warmer, September receives slightly more precipitation at 124 mm (4.9 in) across 14 days, with humidity remaining close to April's at 83%.

For more specifics on weather trends, you can check Interlaken weather in September.

April and October showcase a transition in weather patterns, with April tending to be slightly milder but still chilly. In April, temperatures range from a minimum of -12°C (10°F) to a maximum of 19°C (67°F), with an average temperature of 5°C (42°F). The month experiences about 94 mm (3.7 in) of precipitation over 12 days, and humidity levels are typically around 84%. In contrast, October sees temperatures ranging from -4°C (26°F) to a maximum of 19°C (67°F), similar to April, but with a higher average of 7°C (45°F). This month is also wetter, accumulating 138 mm (5.4 in) of precipitation over 13 days, and the humidity increases to 90%. Overall, October weather presents slightly cooler temperatures and increased moisture compared to April. For more detailed insights, you can check out Interlaken weather in October.

April and November present distinct weather patterns, though both months can experience chilly temperatures. In April, temperatures range from a minimum of -12°C (10°F) to a maximum of 19°C (67°F), with an average of 5°C (42°F). The month sees about 94 mm (3.7 in) of precipitation over roughly 12 days, accompanied by a humidity level of 84%. In contrast, November temperatures are slightly milder, ranging from -10°C (13°F) to 18°C (64°F), with an average temperature of 2°C (35°F). Precipitation increases slightly to 97 mm (3.8 in) over 13 days, and humidity rises to 88%. For a more detailed look at November weather in specific locations, check out Interlaken weather in November.

April and December present quite different weather experiences. In April, temperatures range from a minimum of -12°C (10°F) to a maximum of 19°C (67°F), with an average of 5°C (42°F). The month sees around 94 mm (3.7 in) of precipitation over approximately 12 days, and humidity levels hover around 84%. In contrast, December is notably colder, with temperatures dipping to a minimum of -13°C (8°F) and peaking at 9°C (49°F), averaging -2°C (29°F). Precipitation is more frequent and intense in December, totaling 175 mm (6.9 in) over 17 days, accompanied by higher humidity at 90%. For those interested in specifics, you can explore more about Interlaken weather in December.

Compare Interlaken's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Interlaken

April in Interlaken showcases a captivating transition from the winter chill to spring's embrace. With maximum temperatures gently hovering around a mild 19°C (67°F), the days gradually become more inviting, yet the air can still feel crisp, especially with average lows plummeting to a chilly 5°C (42°F). While the month experiences around 94 mm (3.7 in) of precipitation over approximately 12 days, this mix of rain and shine contrasts sharply with the drier summer months ahead. The humidity levels remain high at 84%, adding to the distinct freshness of the spring air. For more detailed insights into Interlaken’s varying climate throughout the year, check out Interlaken Climate.