April Weather in Thun, Switzerland

Last updated: August 27, 2025

In April, Thun, Switzerland experiences a captivating transition into spring, marked by a maximum temperature reaching 22°C (71°F) and a refreshing average of 7°C (45°F). While the minimum dips to -11°C (12°F), the weather becomes increasingly pleasant, inviting visitors to explore the stunning landscapes. April brings 88 mm (3.5 in) of precipitation over approximately 11 days, fostering the vibrant bloom of flora. With humidity levels at 84%, the air feels crisp yet invigorating, making it a delightful time for outdoor activities and appreciating the beauty of Thun's enchanting surroundings.

April Temperature in Thun

In April, Thun, Switzerland experiences a notable shift in temperatures as spring takes hold. With a minimum temperature of -11°C (12°F) and a pleasant average of 7°C (45°F), the region begins to thaw from the chilly grips of winter. Daytime highs can reach a delightful 22°C (71°F), marking one of the most pleasant months in the year. This trend of gradually warming temperatures reflects a transition from the biting cold of winter months, such as January and March, where lows plummet to -19°C (2°F) and -21°C (-6°F), respectively. As nature awakens, April's moderate climate invites residents and visitors alike to enjoy the beautiful landscapes and blossoming flora, setting the tone for the warmer months ahead.

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

The chart illustrates April temperature patterns in Thun, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Thun, 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).
JanFebMarAprMayJunJulAugSepOctNovDec293338455160626255473732
Data source: Temperature data for Thun 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 Thun

April in Thun, Switzerland, brings a gentle transition into spring, characterized by a manageable precipitation total of 88 mm (3.5 in) over 11 rainy days. This amount, while lower than the preceding months, reflects a steady trend in the seasonal shift, as Thun experiences a decline in precipitation from March’s 121 mm (4.7 in). As the landscape begins to bloom, the milder rainfall in April sets the stage for May's anticipated surge of 182 mm (7.2 in), marking one of the wettest months. Overall, April serves as a crucial bridge in Thun's weather pattern, hinting at the forthcoming lushness of late spring while offering a brief respite from the heavier downpours of winter and early spring.

April Precipitation Trends in Thun

The chart displays monthly precipitation patterns in Thun, 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 Thun, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec113991218818219819717610512294169
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Thun

April marks a distinct transition in Thun, Switzerland's humidity levels, dropping to 84% from the higher percentages seen in the winter and early spring months. This decrease reflects a gradual shift towards drier conditions, as the city moves away from the peak humidity typical of January (91%) through March (87%). As spring progresses into May, humidity continues to decline, reaching 80%, signaling a move towards the warmer and relatively drier summer months ahead. Thus, April serves as a pivotal point in the yearly cycle, balancing lingering coolness with the promise of brighter, clearer days.

April Average Humidity in Thun

This chart illustrates the average monthly humidity levels in Thun, 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 Thun is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%84%80%82%82%77%81%89%89%91%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Thun

As spring unfolds in Thun, Switzerland, the UV Index climbs steadily, reflecting the increasing intensity of the sun. In April, the UV Index reaches 7, placing it in the high exposure category with a burn time of just 25 minutes for unprotected skin. This is a noticeable rise compared to March, which recorded a UV Index of 6. It's a clear signal that outdoor enthusiasts should be vigilant about sun protection, as May will soon bring an even more intense UV Index of 9. With such trends, it's essential to stay informed about the UV levels to enjoy the beauty of spring while safeguarding your skin. For more details, check out Thun UV Index.

Maximum UV Index Levels in Thun for April

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

April is a splendid month in Thun, Switzerland, as it marks a significant transition into sunnier days, with 356 hours of sunshine illuminating the landscape. As spring unfolds, April not only showcases a remarkable increase from 299 hours in March, but it also sets the stage for even brighter months ahead, with May bringing in 361 hours of warmth. This upward trend continues into the summer, peaking in July with an impressive 416 hours of sunlight. By contrast, the winter months, such as January with just 169 hours, seem a distant memory as the vibrant rays of April paint the town, inviting both locals and visitors to bask in the beauty of Thun's springtime. The steady rise in sunshine hours reflects the rejuvenating spirit of the season, making April a delightful time to experience all that this charming Swiss town has to offer.

Monthly Sunshine Duration in Thun: April Highlighted

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

Chance of Sun in Thun During April

In April, the likelihood of sunny weather in Thun, Switzerland rises to 49%, marking a notable transition as the city shakes off the winter chill. This increase follows a progressive climb from 19% in January through to 46% in March, indicating that spring is well on its way. While May sees a slight dip to 33%, the trend suggests that April is typically one of the sunniest months of the early year, offering an inviting opportunity for outdoor activities and exploration. As the days grow longer and warmer, residents and visitors alike can expect a pleasant blend of sunshine and budding nature throughout the month.

Percentage of Sunny Days in April in Thun

The chart illustrates the percentage of sunny days in Thun 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 Thun experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%38%46%49%33%35%36%40%40%43%36%42%
Data source: Thun April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Thun in April

As spring unfolds in Thun, Switzerland, April marks a noticeable transition with daylight extending to 13 hours, a significant increase from the 11 hours recorded in March. This trend of lengthening days reflects the region's journey from winter, where daylight dips to just 8 hours in January, toward the brightness of summer, which brings nearly 15 hours of sunlight in May. The progression not only enhances the outdoor experience but also energizes the vibrant landscape, inviting residents and visitors alike to embrace longer, sunnier days. As the seasons change, the gradual shift in daylight serves as a reminder of nature’s rhythm and the approaching warmth of summer.

Average Daylight Hours in Thun for April

The chart illustrates the variation in daylight duration in Thun throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 59m10h 17m11h 56m13h 37m15h 3m15h 47m15h 24m14h 7m12h 30m10h 50m9h 21m8h 34m
Data source: Thun daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Thun

In April, Thun, Switzerland, experiences a gentle embrace of the wind, with an average speed of 1.8 m/s (4 mph). This atmospheric condition mirrors the tranquility of the preceding months, showcasing a consistent breeze that has remained relatively stable throughout winter and early spring. As temperatures begin to warm and nature awakens, the winds reflect this transition, maintaining an inviting calmness that complements the picturesque scenery of the region. While the month maintains the status quo seen in March, it serves as a bridge into the slightly firmer currents of late spring, suggesting a harmonious balance in the local climate.

Average April Wind Speed in Thun

The chart displays monthly wind speed patterns in Thun, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.81.91.71.8 m/s1.81.41.51.51.41.61.61.9
Data source: Thun April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Thun Compares to Other Months

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

April's weather is significantly milder compared to January, with average temperatures rising from a chilly -2°C (29°F) in January to a more comfortable 7°C (45°F) in April. While January features frigid conditions with a minimum temperature of -19°C (-2°F), April sees a relatively warm maximum of 22°C (71°F). Both months experience precipitation on 11 days, but January typically receives more, totaling 113 mm (4.5 in) compared to April's 88 mm (3.5 in). Additionally, humidity levels are slightly lower in April at 84%, compared to January’s higher humidity of 91%. For a detailed look at January's conditions, check out Thun weather in January.

April generally brings milder temperatures compared to February, with a minimum of -11°C (12°F) and an average of 7°C (45°F), rising to a maximum of 22°C (71°F). In contrast, February experiences colder conditions, with a minimum temperature of -16°C (3°F) and an average of just 1°C (34°F), peaking at 16°C (60°F). While February has slightly higher precipitation at 99 mm (3.9 in) compared to April's 88 mm (3.5 in), both months feature precipitation over 11 days. The humidity levels are comparable, with February at 89% and April at 84%. For more details on February weather, you can check Thun weather in February.

April's weather shows a notable improvement compared to March, with average temperatures rising from 3°C (39°F) to 7°C (45°F). While both months feature chilly low temperatures, April's minimum dips to -11°C (12°F), significantly warmer than March's -21°C (-6°F). Precipitation decreases in April to 88 mm (3.5 in) over 11 days, down from March's 121 mm (4.7 in) across 15 days, indicating a shift towards drier conditions. Humidity remains relatively high in both months, with April at 84% and March slightly higher at 87%. For a deeper comparison of March weather, you can visit this link: Thun weather in March.

April and May exhibit notable differences in weather patterns. April experiences a wider temperature range with minimums dropping to -11°C (12°F) and maximums reaching 22°C (71°F), averaging around 7°C (45°F). In contrast, May presents a milder climate, with minimum temperatures around -5°C (23°F), a higher average of 11°C (51°F), and maximums climbing to 28°C (82°F). However, May sees significantly increased precipitation, totaling 182 mm (7.2 in) over 19 days, compared to April's 88 mm (3.5 in) across 11 days. Humidity levels remain relatively similar, with April at 84% and May slightly lower at 80%. For a detailed look at the weather conditions in May, you can refer to Thun weather in May.

April and June present a stark contrast in weather conditions. April, with temperatures ranging from a chilly -11°C (12°F) to a pleasant 22°C (71°F), offers an average of 7°C (45°F), showcasing the tail end of winter transitioning into spring. In this month, precipitation is moderate at 88 mm (3.5 in) over 11 days, accompanied by a relatively high humidity level of 84%.

In comparison, June experiences significantly warmer temperatures, with minimums of 3°C (37°F) and maximums soaring up to 31°C (88°F), resulting in an average of 16°C (60°F). This month sees a notable increase in precipitation, totaling 197 mm (7.8 in) across 17 days, while humidity remains slightly lower at 82%. For more detailed insights on June weather, you can check out Thun weather in June.

April and July exhibit notable differences in weather patterns. In April, temperatures range from a chilly minimum of -11°C (12°F) to a pleasant maximum of 22°C (71°F), with an average of 7°C (45°F). The month sees a moderate amount of precipitation, totaling 88 mm (3.5 in) over approximately 11 days, accompanied by relatively high humidity levels of 84%. In contrast, July experiences warmer temperatures, with minimums of 7°C (44°F), an average of 17°C (63°F), and maximums soaring to 31°C (89°F). This summer month is also wetter, registering 197 mm (7.8 in) of rain over 16 days, while humidity slightly decreases to 82%. For more details on July weather, you can visit Thun weather in July.

April and August present notably different weather conditions. In April, temperatures range from a chilly -11°C (12°F) at night to a mild 22°C (71°F) during the day, averaging around 7°C (45°F). This month experiences around 88 mm (3.5 in) of precipitation over 11 days, accompanied by high humidity at 84%. In contrast, August boasts warmer temperatures, with a minimum of 6°C (43°F) at night and a maximum of 30°C (86°F) during the day, averaging 17°C (62°F). It is also wetter, receiving 176 mm (6.9 in) of rain over 15 days, though the humidity is slightly lower at 77%. For more detailed information, check out the Thun weather in August.

April and September offer distinct weather experiences, with April characterized by cooler temperatures ranging from a minimum of -11°C (12°F) to a maximum of 22°C (71°F) and an average of 7°C (45°F). The month sees around 88 mm (3.5 in) of precipitation over 11 days, along with relatively high humidity at 84%. In contrast, September features milder temperatures, with a minimum of 1°C (34°F) and a maximum of 25°C (78°F), averaging 13°C (55°F). Precipitation is slightly higher at 105 mm (4.1 in) across 13 days, and humidity is a touch lower at 81%. These differences highlight the transition from the chill of early spring to the warmth of early autumn. For more detailed information, check out Thun weather in September.

April and October exhibit distinct weather characteristics, despite their similar average maximum temperatures of 21°C (71°F). April can be quite chilly, with minimum temperatures dipping to -11°C (12°F) and an average of 7°C (45°F), while October experiences milder conditions, with minimums around -2°C (29°F) and an average of 8°C (48°F). Precipitation is notably higher in October, with 122 mm (4.8 in) over 13 days compared to April's 88 mm (3.5 in) over 11 days, contributing to a slight increase in humidity that reaches 89% in October versus 84% in April. For more detailed insights, you can check Thun weather in October.

April and November showcase contrasting weather patterns, though both months feature a mixture of cool temperatures and moderate precipitation. In April, temperatures range from a minimum of -11°C (12°F) to a maximum of 22°C (71°F), with an average of 7°C (45°F) and relatively high humidity at 84%. Precipitation is slightly lower at 88 mm (3.5 in) over about 11 days. In contrast, November experiences a narrower temperature range, with minimums of -9°C (17°F) and maximums reaching only 19°C (67°F), leading to a cooler average of 3°C (38°F). The month sees a tad more precipitation at 94 mm (3.7 in) across 13 days and a slight increase in humidity at 89%. For more detailed information, you can check Thun weather in November.

April and December present quite different weather patterns. In April, temperatures range from a chilly minimum of -11°C (12°F) to a pleasant maximum of 22°C (71°F), averaging around 7°C (45°F). The month sees about 88 mm (3.5 in) of precipitation over approximately 11 days, with humidity at a moderate 84%. In contrast, December is significantly colder, with temperatures dipping even lower, from -12°C (11°F) to a maximum of 10°C (51°F) and averaging around 0°C (32°F). Precipitation increases to 169 mm (6.7 in), occurring on about 17 days, coupled with higher humidity at 91%. For more specific details about December weather, you can check out Thun weather in December.

Compare Thun's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Thun

April in Thun marks a significant transition as winter gives way to spring. With temperatures gradually rising, the month offers a refreshing mix of cool and mild days, distinguishing it from the harsher chill of the preceding months. However, the increased humidity and frequent precipitation, with about 11 rainy days, remind residents that Thun's weather can still be quite unpredictable during this time. The combination of vibrant blossoms and the lingering cold creates a unique and dynamic atmosphere, inviting both locals and visitors to embrace the beauty of this seasonal shift. For more insights into Thun's weather patterns, visit Thun Climate.