April Weather in Unterseen, Switzerland

Last updated: August 27, 2025

April in Unterseen, Switzerland presents a dynamic weather profile marked by a maximum temperature of 19°C (67°F) and a noticeable chill with an average of 5°C (42°F), dipping to a minimum of -12°C (10°F) at night. This transitional month experiences 94 mm (3.7 in) of precipitation over approximately 12 days, contributing to the region's lush landscape. With an average humidity level of 84%, the air retains a refreshing crispness, inviting both locals and visitors to embrace the scenic beauty while preparing for variable weather conditions.

April Temperature in Unterseen

In April, Unterseen, Switzerland, begins to shake off the chill of winter, offering a refreshing transition into spring. With temperatures ranging from a minimum of -12°C (10°F) to a maximum of 19°C (67°F), the month averages around 5°C (42°F), marking a noticeable rise compared to the earlier months. This gentle warming trend is evident as the landscape awakens, making it an ideal time for both locals and visitors to explore the stunning natural beauty of the region. As the days become longer and the sun's warmth becomes more inviting, April offers a perfect blend of cool mountain air and the first hints of springtime blooms, setting the stage for the warmer months to come.

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

The chart illustrates April temperature patterns in Unterseen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Unterseen, 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 Unterseen generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Unterseen

April in Unterseen, Switzerland, typically brings a mix of springtime rejuvenation and moderate precipitation, recording an average of 94 mm (3.7 in) over about 12 days. This amount marks a slight decrease from the wetter months of March and May, with the latter showcasing a significant uptick in rainfall. As the landscape transitions from the chill of winter, April's consistent, albeit lighter, showers lay the groundwork for the lush greenery to come. The trend of fluctuating precipitation continues into the summer months, but April stands out as a pivotal moment of change, providing a gentle reminder of nature's delicate balance as it stirs from its winter slumber.

April Precipitation Trends in Unterseen

The chart displays monthly precipitation patterns in Unterseen, 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 Unterseen, 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 Unterseen

April in Unterseen, Switzerland, brings a noticeable dip in humidity levels, settling at 84% compared to the winter months. This reduction marks a shift from the year's high humidity of 92% in January, gradually decreasing as the seasons change. As we transition from spring into summer, April establishes a trend of lower humidity that continues into May, where it dips further to 80%. This suggests a gradual warming and drying effect as the year progresses, although the humidity remains relatively consistent, fluctuating between 80% and 87% from March through July. Overall, April's humidity indicates a shift towards more moderate conditions, setting the stage for the warmer months ahead.

April Average Humidity in Unterseen

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

As spring unfolds in Unterseen, Switzerland, the UV Index experiences a notable rise in April, reaching 7 which falls into the high exposure category. This reflects an increase from the previous month's 6 in March, indicating a trend of intensifying sun exposure as we move through the season. With a burn time of just 25 minutes, it's essential to take precautions against UV radiation. Looking ahead, May and June promise even higher levels, reaching a peak of 10, emphasizing the importance of sun protection as the summer approaches. For those planning outdoor activities, it's wise to stay informed about the changing UV Index to enjoy the beautiful Swiss landscapes safely. For more details, check the Unterseen UV Index.

Maximum UV Index Levels in Unterseen for April

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

April brings a delightful surge of sunshine to Unterseen, Switzerland, with an impressive 356 hours of golden rays gracing the landscape. This increase is part of a broader trend as the year progresses; after a gradual climb from January's 169 hours, each month showcases a growing vibrancy, culminating in the sunniest months of July and June. April's warmth not only rejuvenates nature but also invites locals and visitors alike to revel in outdoor activities. With the days becoming longer and brighter, it's a perfect time to explore the scenic beauty of the region as it transitions into the peak of summer, where sunshine reaches 416 hours in July. The gradual increase from January to April perfectly captures the essence of spring awakening, making this period a cherished chapter in Unterseen's climatic narrative.

Monthly Sunshine Duration in Unterseen: April Highlighted

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

Chance of Sun in Unterseen During April

As April arrives in Unterseen, Switzerland, the likelihood of sunny weather begins to brighten, with a 48% chance of sunshine. This is a notable increase compared to the earlier months, reflecting a progressive trend as winter fades into spring. March, with a 44% chance, showcases a gradual uplift as the days grow longer and warmer. However, April stands out, surpassing the sunniest months of January and February, which only offered 19% and 38% sunlight, respectively. Although May dips down to 31%, April’s relatively higher probability signifies an exciting transition into sunnier days, inviting residents and visitors alike to enjoy the blossoming beauty of the season.

Percentage of Sunny Days in April in Unterseen

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

Daylight Hours in Unterseen in April

As spring unfolds in Unterseen, Switzerland, April brings a delightful increase in daylight, basking the region in approximately 13 hours of sunlight. This marks a significant jump from March's 11 hours, signaling the arrival of brighter days and longer evenings. The trend continues toward the summer months, as daylight further expands to 15 hours in May, creating an inviting atmosphere for outdoor activities and exploration. Following the long days of summer, sunlight gradually recedes come autumn, echoing the seasonal rhythm that captures the essence of this picturesque Swiss locale.

Average Daylight Hours in Unterseen for April

The chart illustrates the variation in daylight duration in Unterseen 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: Unterseen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Unterseen

In April, Unterseen, Switzerland experiences a gentle breeze, with an average wind speed of 1.5 m/s (3 mph). This stability in wind patterns is typical as the region transitions from the chill of winter to the blossoming of spring. Interestingly, wind speeds remain consistent throughout the month, echoing the calmness seen in March and offering a serene backdrop to the awakening landscape. Following a slight dip in wind velocity during June and July, residents and visitors can look forward to slightly more invigorating conditions in May, where the winds pick up again to 1.6 m/s (4 mph). Overall, April's gentle winds not only enhance the tranquil atmosphere of Unterseen but also signal the arrival of the lively, warmer months ahead.

Average April Wind Speed in Unterseen

The chart displays monthly wind speed patterns in Unterseen, 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: Unterseen April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Unterseen Compares to Other Months

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

April and January present quite contrasting weather patterns. In April, temperatures gradually rise, with a minimum of -12°C (10°F) and an average of 5°C (42°F), reaching a pleasant maximum of 19°C (67°F). This month experiences about 94 mm (3.7 in) of precipitation over 12 days, accompanied by a humidity level of 84%. In stark contrast, January is significantly colder, with temperatures plummeting to a minimum of -19°C (-1°F) and averaging -3°C (26°F), peaking at just 9°C (48°F). Precipitation is higher at 123 mm (4.9 in) over the same number of days, and humidity is also elevated at 92%. For more detailed information, you can check Unterseen weather in January.

In comparing the weather of April and February, April generally brings milder temperatures, with a minimum of -12°C (10°F) and an average of 5°C (42°F), while February records even colder temperatures, with a minimum of -18°C (-1°F) and an average of -1°C (31°F). April's maximum temperature reaches up to 19°C (67°F), significantly warmer than February's maximum of 14°C (58°F). Precipitation in April is slightly lower at 94 mm (3.7 in) over 12 days compared to February's 103 mm (4.0 in) across 11 days. Additionally, April has a humidity level of 84%, which is somewhat lower than February’s 89%. For more specific details about February weather, you can check Unterseen weather in February.

In comparing the weather between March and April, we can see a notable warming trend. March experienced lower temperatures, ranging from a minimum of -23°C (-9°F) to a maximum of 16°C (60°F), with an average of 2°C (36°F). In contrast, April's temperatures were milder, with a minimum of -12°C (10°F), an average of 5°C (42°F), and a maximum reaching 19°C (67°F).

Precipitation was also significant in both months, with March receiving 125 mm (4.9 in) over 15 days, while April recorded 94 mm (3.7 in) across 12 days. Humidity remained relatively high in both months, at 87% in March and 84% in April. For a closer look at March weather specifics, visit Unterseen weather in March.

April and May exhibit notable differences in weather patterns, particularly in terms of temperature and precipitation. In April, temperatures range from a chilly minimum of -12°C (10°F) to a more moderate average of 5°C (42°F), peaking at 19°C (67°F). However, the month also brings considerable rainfall, with 94 mm (3.7 in) over 12 days, creating an overall feeling of dampness with a high humidity of 84%.

In contrast, May welcomes warmer conditions, with temperatures starting at a minimum of -7°C (20°F) and averaging 9°C (48°F), reaching a maximum of 25°C (78°F). The month is significantly wetter, experiencing about 182 mm (7.2 in) of precipitation spread over 19 days, resulting in a slightly lower humidity level of 80%. For a more detailed look at the weather during this month, you can visit Unterseen weather in May.

April and June present quite different weather patterns. In April, temperatures range from a chilly -12°C (10°F) at night to a more pleasant average of 5°C (42°F), peaking at 19°C (67°F). The month sees substantial precipitation of 94 mm (3.7 in) over about 12 days, with humidity levels averaging 84%. In contrast, June boasts warmer temperatures, with a minimum of 1°C (34°F), an average of 14°C (57°F), and a maximum reaching 29°C (85°F). However, it experiences even higher precipitation, totaling 225 mm (8.9 in) over 18 days, and slightly lower humidity at 82%. For a closer look at June's weather, you can check out Unterseen weather in June.

April and July present distinct contrasts in weather, reflecting the transition from early spring to peak summer. 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). The month also sees considerable precipitation of 94 mm (3.7 in) over 12 days, coupled with high humidity at 84%. In contrast, July boasts significantly warmer temperatures, with a minimum of 5°C (41°F) and a maximum reaching 29°C (84°F), averaging 15°C (60°F). This month experiences higher rainfall, totaling 219 mm (8.6 in) over 18 days, while humidity remains relatively steady at 83%. For more detailed insights into the July climate, you can visit Unterseen weather in July.

April and August present contrasting weather patterns, reflecting the transition from early spring to late summer. In April, temperatures range from a chilly minimum of -12°C (10°F) to a pleasant max of 19°C (67°F), with an average of 5°C (42°F). The month is characterized by significant humidity at 84% and a total precipitation of 94 mm (3.7 in) over approximately 12 days. In comparison, August sees warmer conditions, with temperatures fluctuating from a minimum of 5°C (41°F) to a maximum of 28°C (82°F) and an average of 15°C (59°F). The latter month experiences more rainfall, accumulating 203 mm (8.0 in) across about 18 days, accompanied by slightly lower humidity at 80%. For more detailed insights on the weather, check out Unterseen weather in August.

April and September present distinct weather profiles, showcasing the transition of seasons. 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). The month experiences moderate precipitation, totaling 94 mm (3.7 inches) over approximately 12 days, accompanied by a relatively high humidity of 84%.

In contrast, September warms up, with temperatures spanning from a minimum of 0°C (32°F) to a pleasant maximum of 23°C (73°F), averaging around 11°C (53°F). Precipitation is slightly higher at 124 mm (4.9 inches) across 14 days, while humidity remains comparable at 83%. For a detailed weather overview, you can visit Unterseen weather in September.

April and October exhibit notable similarities and differences in weather patterns. Both months see a maximum temperature of 19°C (67°F), but April typically enjoys a slightly warmer average temperature of 5°C (42°F) compared to October's 7°C (45°F). However, April can be colder at night, with minimum temperatures dropping to -12°C (10°F), whereas October's lows are less severe, reaching -4°C (26°F).

Precipitation is another key difference; April receives 94 mm (3.7 in) over 12 days, while October experiences a wetter climate with 138 mm (5.4 in) across 13 days. This results in a higher humidity level in October, at 90% compared to April's 84%. For more detailed information, you can take a look at the Unterseen weather in October.

April and November in Unterseen present a stark contrast in weather patterns, despite similar average temperatures. In April, temperatures range from a chilly -12°C (10°F) to a pleasant max 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 12 days, accompanied by a relatively high humidity of 84%. Conversely, November's temperatures are slightly milder, with a minimum of -10°C (13°F) and a maximum of 18°C (64°F), averaging at 2°C (35°F). The precipitation increases marginally to 97 mm (3.8 in) spread over 13 days, while humidity rises to 88%. For a detailed look at how November weather unfolds, visit Unterseen weather in November.

April and December present stark contrasts in weather patterns. In April, temperatures range from a brisk -12°C (10°F) at night to a mild 19°C (67°F) during the day, with an average of 5°C (42°F). The month sees about 94 mm (3.7 in) of precipitation over 12 days and an average humidity of 84%. In contrast, December is colder, featuring minimum temperatures of -13°C (8°F), an average of -2°C (29°F), and a maximum of 9°C (49°F). It experiences higher precipitation levels of 175 mm (6.9 in) across 17 days, with humidity rising to 90%. For more details on December conditions, check Unterseen weather in December.

Compare Unterseen's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Unterseen

April in Unterseen heralds a remarkable transition as winter’s chill begins to wane, making way for milder days. While temperatures can still dip, the potential for warmer afternoons creates a dynamic mix that many find refreshing. Although precipitation graces the month, frequent rain showers contrast the burgeoning signs of spring, with a noteworthy humidity level that adds to the atmosphere. Compared to the depths of winter, April showcases a gentle awakening of nature, offering a glimpse of the vibrant seasons to come. For a more detailed look at how April fits into the broader climate context, explore Unterseen Climate.