Last updated: August 27, 2025
Ascona, Switzerland, in April is characterized by a refreshing blend of springtime weather. Average temperatures hover around 7°C (44°F), with a pleasant maximum reaching up to 20°C (68°F). However, the mornings can still be brisk, dipping to a chilly -6°C (21°F). This month also sees frequent rain, totaling approximately 136 mm (5.3 in) over 10 days, contributing to a notably high humidity level of 84%. Visitors can expect a vibrant atmosphere as the region transitions into the warmer months, offering a unique mix of cool breezes and blossoming flora.
In April, Ascona, Switzerland welcomes a refreshing shift in temperatures as the long winter begins to ease. The minimum temperature hovers around -6°C (21°F), a significant rise compared to the biting cold of earlier months, while the average temperature climbs to a more pleasant 7°C (44°F). On warmer days, residents can enjoy highs reaching up to 20°C (68°F), providing the perfect backdrop for outdoor activities and blooming landscapes. This month marks a transition, as temperatures continue to rise towards the coming summer, making April an invigorating time to experience the charm of Ascona.
April in Ascona, Switzerland, marks a significant uptick in precipitation, with 136 mm (5.3 in) of rain falling across 10 days. This increase continues the upward trend from March, where 106 mm (4.2 in) was recorded, and sets the stage for an even wetter May with 176 mm (6.9 in) expected. As the region transitions into spring, April’s rainfall showcases a pattern of enhanced moisture, providing much-needed hydration for burgeoning flora. Interestingly, while the number of rainy days remains relatively stable, the volume of precipitation peaks, reflecting a robust blend of spring showers that nourish the landscape, making it a vibrant time in this picturesque Swiss locale.
April in Ascona, Switzerland, marks a notable shift in humidity levels as the spring season truly begins to take hold. With an average humidity of 84%, April experiences a decline from the higher winter months, which hovered around 92% in January and 89% in February. This gradual decrease indicates a move towards drier conditions as the region transitions into warmer months. Following April, humidity levels are projected to further decline, hitting the year’s lowest point of 80% in May. Therefore, April serves as a pivotal bridge between the damp chill of winter and the more comfortable, temperate climate of late spring.
As April arrives in Ascona, Switzerland, residents and visitors alike should be mindful of a significant jump in the UV Index, which soars to 8, placing it in the very high exposure category. This marks a notable shift from the moderate levels seen in February and March, and with a rapid burn time of only 15 minutes, protection against sun exposure becomes essential. This upward trend continues into May and June, where the UV Index peaks at 9 and 10, respectively, underscoring the importance of sun safety as the warmer months approach. As you enjoy the sunny days, be sure to check the full forecast for the region, conveniently available at Ascona UV Index.
UV Risk Categories
As April arrives in Ascona, Switzerland, the sun shines with increasing brilliance, heralding the idyllic transition into spring. With 330 hours of sunshine, April outshines the previous winter months, reflecting a steady upward trend that begins in January with a mere 174 hours. This gradual increase continues to flourish, peaking in the summer months, where June and July bask in 379 and 404 hours of golden rays, respectively. As the year progresses, visitors can relish the delightful warmth of Ascona, especially in April, where the promise of longer, sun-kissed days begins to unfold, setting the stage for the vibrant summer ahead.
In Ascona, Switzerland, the likelihood of experiencing sunny weather in April dips slightly to 46%, marking a transitional moment in the spring season. After a promising rise in sunshine through March, where the chance peaks at 58%, April presents a blend of sunshine and passing showers as the region awakens from winter. Although this month sees a reduction in sunshine compared to its predecessor, it remains relatively bright compared to the wetter months that follow. As summer approaches, the sunshine probability fluctuates, highlighting the dynamic and often unpredictable character of the region's weather. Overall, visitors in April can still expect moments of brightness amidst the rejuvenating spring atmosphere.
As April arrives in Ascona, Switzerland, the days become noticeably brighter, with daylight extending to 13 hours—a significant leap from the 11 hours experienced in March. This transition not only heralds the arrival of spring but also marks a pivotal shift towards longer days as the year progresses. Following April, May promises even more sunshine with 14 hours of daylight, while June peaks at 15 hours, offering the longest days of the year. The gradual lengthening from the winter months—where daylight was limited to just 9 hours in January—illustrates a comforting trend of increasing brightness and warmth that invites outdoor activities and the blooming of natural beauty in this picturesque Swiss town.
In April, Ascona experiences a gentle breeze with an average wind speed of 1.3 m/s (3 mph), slightly lower than the winter months. As the chill of January's 1.7 m/s gives way to warmer spring days, the overall wind patterns appear to stabilize. Notably, April's winds maintain a similar calm to March, hinting at a transition into the milder breezes of late spring. This consistency, shared with May's similar speeds, sets a serene tone for those enjoying the beautiful lakeside views and blossoming scenery, contrasting with the stronger gusts expected in the later months as summer approaches.
Weather in Ascona varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Ascona, focusing on differences in temperature, rainfall, humidity, and UV levels.
April weather is significantly milder compared to January, with temperatures ranging from a low of -6°C (21°F) to a high of 20°C (68°F), while January experiences much colder conditions, with temperatures dropping to -16°C (4°F) at night and averaging -2°C (29°F) during the day. Additionally, April has more precipitation at 136 mm (5.3 in) over 10 days, compared to January's 71 mm (2.8 in), although both months see similar numbers of rainy days. Humidity levels in January are slightly higher at 92%, compared to 84% in April, contributing to the chillier feel of the winter month. For a more detailed look at the weather specifics in January, you can check out Ascona weather in January.
April generally offers milder temperatures compared to February, with a minimum of -6°C (21°F) and an average of 7°C (44°F) rising to a comfortable maximum of 20°C (68°F). In contrast, February experiences colder conditions, with temperatures dipping to -17°C (2°F) on the lower end and an average of just 1°C (34°F). While February sees slightly more days of precipitation at 11 days, the total accumulation is lower at 56 mm (2.2 in) compared to April's 136 mm (5.3 in). Additionally, humidity levels are quite high in both months, with February around 89% and April at 84%. For more details on February weather, you can check Ascona weather in February.
April generally experiences milder temperatures compared to March, with a minimum of -6°C (21°F) and an average temperature of 7°C (44°F), while March sees lower averages, with a minimum of -17°C (3°F) and an average of 3°C (37°F). The maximum temperature in April reaches 20°C (68°F), making it noticeably warmer than the highest temperature of 18°C (64°F) in March. Additionally, April has slightly more precipitation at 136 mm (5.3 in) over 10 days, compared to March's 106 mm (4.2 in) over 12 days. Humidity levels are relatively high in both months, with April at 84% and March at 87%. For a more detailed look at the weather specifics, visit Ascona weather in March.
April and May exhibit distinct differences in weather patterns. In April, temperatures range from a chilly minimum of -6°C (21°F) to a pleasant maximum of 20°C (68°F), with an average of 7°C (44°F). However, this month also brings significant precipitation, totaling 136 mm (5.3 in) over 10 days and maintaining high humidity at 84%. In contrast, May shows a rise in temperatures, with a minimum of -7°C (21°F), an average of 11°C (51°F), and peaks at a warm 25°C (77°F). Rainfall also increases in May, reaching 176 mm (6.9 in) across 19 days, though humidity slightly decreases to 80%. For a closer look at what to expect in May, check out Ascona weather in May.
April tends to be cooler and wetter compared to June, with temperatures ranging from a chilly -6°C (21°F) at night to a mild 20°C (68°F) during the day. The month witnesses significant rainfall, averaging 136 mm (5.3 in) over 10 days and maintaining high humidity at 84%. In contrast, June brings warmer temperatures, with nightly lows of 5°C (41°F) and daytime highs soaring up to 34°C (93°F). While it is slightly wetter in June with 159 mm (6.3 in) of precipitation over 18 days, the humidity remains relatively lower at 82%. For a closer look at June weather specifics, you can check out Ascona weather in June.
April and July exhibit striking contrasts in weather patterns. In April, temperatures range from a chilly minimum of -6°C (21°F) to a mild maximum of 20°C (68°F), with an average of 7°C (44°F). This month sees substantial precipitation, totaling 136 mm (5.3 in) over about 10 days, alongside high humidity levels at 84%. In contrast, July offers a much warmer climate, with minimum temperatures starting at 6°C (44°F) and peaking at 27°C (80°F), averaging 17°C (63°F). While precipitation levels are slightly lower at 123 mm (4.9 in), rainfall occurs over more days (18), with humidity remaining relatively stable at 83%. For those interested in a detailed overview of summer conditions, Ascona weather in July provides valuable insights.
April and August present a significant contrast in weather conditions. In April, temperatures range from a chilly minimum of -6°C (21°F) to a mild maximum of 20°C (68°F), with an average of 7°C (44°F). The month sees about 136 mm (5.3 in) of precipitation over 10 days, resulting in a high humidity level of 84%. In contrast, August is considerably warmer, with temperatures varying between a minimum of 7°C (45°F) and a maximum of 28°C (82°F), averaging 17°C (62°F). This month experiences slightly more precipitation at 169 mm (6.6 in) over 13 days but maintains a lower humidity of 80%. For more details on August weather, you can visit Ascona weather in August.
In April, temperatures can range from a chilly -6°C (21°F) to a comfortable 20°C (68°F), with an average temperature of around 7°C (44°F). The month experiences significant precipitation, with about 136 mm (5.3 in) falling over approximately 10 days, and humidity levels are relatively high at 84%.
In contrast, September sees slightly milder temperatures, with a minimum of -1°C (31°F) and a maximum of 23°C (74°F), resulting in an average temperature of 13°C (55°F). Although there is similar total rainfall of 136 mm (5.4 in), it occurs over more days, about 14, and the humidity remains close at 83%. For more details on September weather, visit Ascona weather in September.
April and October present distinct weather characteristics. In April, temperatures range from a minimum of -6°C (21°F) to a maximum of 20°C (68°F), with an average of around 7°C (44°F). The month experiences about 136 mm (5.3 in) of precipitation over 10 days, accompanied by a humidity level of 84%. In contrast, October shows slightly milder conditions with temperatures varying from -1°C (30°F) to 21°C (69°F) and averaging at 8°C (47°F). However, it is significantly wetter, with precipitation measuring 242 mm (9.5 in) across 12 days and a higher humidity of 90%. For more detailed insights into the weather during this month, check out Ascona weather in October.
April and November present contrasting weather conditions, with April generally being milder. In April, temperatures fluctuate from a minimum of -6°C (21°F) to a maximum of 20°C (68°F), with an average of 7°C (44°F). The month also sees significant precipitation, totaling 136 mm (5.3 in) over about 10 days, accompanied by a humidity level of 84%. In contrast, November experiences colder temperatures, ranging from -9°C (16°F) to a maximum of 15°C (59°F) and averaging at 3°C (38°F). The month is wetter, with precipitation reaching 168 mm (6.6 in) over 13 days and a slightly higher humidity of 88%. For a closer look at November weather specifics, you can check Ascona weather in November.
April and December present distinctly different weather patterns. In April, temperatures begin to rise, ranging from a minimum of -6°C (21°F) to a maximum of 20°C (68°F), with an average of 7°C (44°F). This month typically experiences 136 mm (5.3 in) of precipitation over about 10 days, accompanied by a humidity level of 84%. In contrast, December is much colder, with temperatures ranging from a minimum of -13°C (10°F) to a maximum of 9°C (49°F), averaging around -1°C (31°F). The precipitation levels are slightly lower at 119 mm (4.7 in), spread across about 12 days, and humidity increases to 90%. For a more in-depth look at the weather specifics, visit Ascona weather in December.
As April unfolds in Ascona, the weather begins to transition from the chill of winter to the mildness of spring. With temperatures rising to a pleasant maximum of 20°C, this month stands out as a time of rejuvenation, although the average still lingers around a cool 7°C, hinting at the lingering winter chill. Rainfall is moderate, with about 136 mm spread over approximately 10 days, contributing to the lush greenery that characterizes the region in spring. The humidity remains relatively high at 84%, creating a refreshing atmosphere that makes outdoor activities all the more appealing. To explore more about the climate nuances of Ascona throughout the year, visit Ascona Climate.