Last updated: August 27, 2025
April in Biel/Bienne, Switzerland offers a delightful mix of springtime warmth and refreshing showers, making it an intriguing time to experience the city. With maximum temperatures reaching 25°C (77°F) and an average of 9°C (49°F), residents and visitors can enjoy mild days, although chilly evenings can bring the mercury down to a minimum of -5°C (23°F). Expect 67 mm (2.6 in) of precipitation over approximately 11 days, contributing to the region's lush greenery and vibrant blooms. Humidity levels hover around 84%, creating a fresh and invigorating atmosphere that characterizes the essence of spring in Biel/Bienne.
In April, Biel/Bienne, Switzerland transitions into spring with a noticeable rise in temperatures, showcasing a robust shift from the lingering chill of winter. The minimum temperature hovers around -5°C (23°F), while the average climbs to 9°C (49°F), and the mercury can peak at a balmy 25°C (77°F). This leap from March’s more frigid climate not only invites blooming flowers and lush greenery but also encourages outdoor activities as locals and visitors alike embrace the warming days. The dramatic increase marks April as a vibrant bridge to the warmer months, setting the stage for the height of spring and the approach of summer's warmth.
April in Biel/Bienne, Switzerland, marks a notable shift in precipitation patterns as the month brings a total of 67 mm (2.6 in) of rainfall over just 11 days. This decrease from the heavier downpours of March, which saw 100 mm (3.9 in), indicates a slight easing as spring takes hold. While April is generally drier compared to its predecessors, it sets the stage for the wetter months ahead. As May approaches with a significant uptick in precipitation to 156 mm (6.1 in) over 18 days, it’s clear that Biel/Bienne transitions from the cooler, wetter days of early spring to a much more lush and vibrant landscape as the season progresses.
In April, humidity in Biel/Bienne exhibits a noticeable decline to 84%, marking a shift from the higher levels observed in the earlier months. This reduction is part of a broader trend, as the region's humidity gradually dips from a lofty 91% in January to its seasonal low of 77% in August. Following April, humidity levels remain relatively stable through June and July at 82%, before experiencing a slight increase again in the autumn months. This pattern not only underscores the transition from the dampness of winter to the milder atmosphere of spring but also sets the stage for more comfortable conditions as summer approaches.
As spring unfolds in Biel/Bienne, Switzerland, the UV Index climbs noticeably throughout April, reaching a high value of 6. This marks a significant increase from the moderate levels observed in March, where the Index sat at 5. With an estimated burn time of just 25 minutes, it’s crucial to adopt sun protection measures during outdoor activities. The upward trend continues into May, where the UV Index escalates to a very high 8, signaling the approach of summer and the need for even more vigilance against harmful UV rays. As you enjoy the blooming season, keep informed and safe by checking the Biel/Bienne UV Index.
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April shines brightly in Biel/Bienne, Switzerland, as the days grow longer and sunnier. With 358 hours of sunshine, April marks a significant jump from the 296 hours in March, heralding the arrival of spring in full bloom. This upward trend continues into May, which boasts even more sunshine at 370 hours, setting the tone for a vibrant summer ahead. The gradual increase in sunlight from winter's low of 159 hours in January to April's generous offering reflects the region's awakening, inviting both locals and visitors to enjoy the lush landscapes and outdoor activities. Each month builds upon the last, creating an exhilarating anticipation for the sun-soaked days of June and July, which promise the highest sunshine totals of the year.
In Biel/Bienne, Switzerland, the likelihood of enjoying sunny weather takes a notable leap in April, with a 51% chance of sunshine—the first month to surpass the 50% mark this year. As the days lengthen and the chill of winter fades, sunlight increasingly brightens the early spring landscape. This rise from 46% in March reflects a promising trend towards more favorable outdoor conditions, marking a welcome shift after the colder months. While May dips down to 32%, April stands as a highlight, inviting locals and visitors alike to revel in the blossoming beauty of the region under sunnier skies.
As April emerges in Biel/Bienne, Switzerland, residents are treated to a noticeable increase in daylight duration, with the sun shining for approximately 13 hours each day. This marks a significant jump from March's 11 hours, as the days grow longer and warmer, aptly heralding the arrival of spring. The trend of expanding daylight continues into May and June, where it peaks at 15 hours. This pattern reflects a steady progression from the shorter winter days of January and February, which offer just 8 and 10 hours respectively. By embracing April's longer days, locals enjoy more opportunities for outdoor activities, setting the stage for the vibrant months ahead as the sun returns to its full glory in the Swiss skies.
In April, Biel/Bienne experiences a consistent breeze, with an average wind speed of 2.4 m/s (5 mph), mirroring the gentle gusts of March. This stability hints at the transition to spring, where the air remains brisk yet inviting. Interestingly, April's wind speed aligns with the gradual climb seen in May, which hits 2.8 m/s (6 mph), suggesting that as the temperatures rise, so do the playful winds, invigorating outdoor activities. Following a dip in wind activity during the summer months of June and July, which average around 1.7 to 2.0 m/s (4 mph), the winds return to a more lively pace in the fall. Thus, April serves as a gentle reminder of nature's patterns, preparing both residents and visitors in Biel/Bienne for the vibrant months ahead.
Weather in Biel/Bienne varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Biel/Bienne, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January present quite contrasting weather experiences. In April, temperatures range from a chilly minimum of -5°C (23°F) to a warm maximum of 25°C (77°F), with an average of 9°C (49°F). The month sees around 67 mm (2.6 in) of precipitation over 11 days, coupled with a lower humidity level of 84%. In stark contrast, January is notably colder, with temperatures dipping as low as -14°C (8°F) and averaging just 1°C (33°F). The maximum temperature reaches only 15°C (59°F) during this month, and it experiences higher precipitation at 98 mm (3.9 in) over 13 days, along with a higher humidity of 91%. For more insights on January weather, check out Biel/Bienne weather in January.
When comparing the weather in April and February, it’s evident that April tends to be milder and more variable. In April, the minimum temperature is -5°C (23°F), with an average of 9°C (49°F) and a maximum reaching up to 25°C (77°F), while February experiences colder temperatures with a minimum of -13°C (8°F) and an average of 3°C (38°F), peaking at 17°C (64°F). Although April has less total precipitation at 67 mm (2.6 in) compared to February's 84 mm (3.3 in), it still has a similar number of rainy days—11 for April and 12 for February. Furthermore, humidity levels are slightly lower in April at 84%, compared to February’s 89%. For more detailed information about the weather in February, you can visit Biel/Bienne weather in February.
In comparing the weather of April and March, it's evident that April experiences a noticeable warming trend. April's average temperature is 9°C (49°F), significantly higher than March's average of 5°C (42°F), with minimum temperatures also milder at -5°C (23°F) compared to March's colder minimum of -13°C (9°F). Additionally, while both months see precipitation, April has less overall with 67 mm (2.6 in) over 11 days, in contrast to March, which records 100 mm (3.9 in) across 16 days. Humidity remains relatively similar, with April at 84% and March slightly higher at 87%. For a detailed look at March weather patterns, you can visit Biel/Bienne weather in March.
April and May present distinct shifts in weather patterns. In April, temperatures range from a chilly minimum of -5°C (23°F) to a comfortable maximum of 25°C (77°F), with an average of 9°C (49°F). The month experiences 67 mm (2.6 in) of precipitation over 11 days, coupled with high humidity levels at 84%. In contrast, May sees a gradual warming with minimum temperatures around -1°C (30°F) and maximums reaching 29°C (85°F), averaging 13°C (55°F). However, May is notably wetter, receiving 156 mm (6.1 in) of precipitation over 18 days and experiencing slightly lower humidity at 80%. For more detailed information, you can check out Biel/Bienne weather in May.
April and June exhibit notable differences in weather patterns. In April, temperatures range from a chilly -5°C (23°F) at night to a comfortable average of 9°C (49°F) during the day, peaking at 25°C (77°F). Precipitation is moderate, with 67 mm (2.6 in) over about 11 days, and humidity remains high at 84%. In contrast, June boasts much warmer temperatures, with lows of 5°C (41°F) and an average of 18°C (64°F), reaching highs of 33°C (92°F). Rain is more frequent in June, accumulating to 141 mm (5.6 in) over 17 days, while humidity slightly decreases to 82%. For more detailed insights, you can check Biel/Bienne weather in June.
April and July present markedly different weather patterns. In April, temperatures fluctuate between a chilly minimum of -5°C (23°F) and a comfortable maximum of 25°C (77°F), with an average of 9°C (49°F). Sweeter spring days come with some rain, totaling 67 mm (2.6 in) over about 11 days, accompanied by high humidity at 84%. In contrast, July boasts much warmer conditions, where temperatures range from a minimum of 8°C (46°F) to a scorching maximum of 35°C (95°F), averaging around 19°C (67°F). Precipitation increases significantly to 150 mm (5.9 in) over approximately 15 days, while humidity slightly decreases to 82%. To learn more about the climate in this summer month, check out the detailed forecast Biel/Bienne weather in July.
When comparing the weather in April and August, distinct contrasts emerge in temperature and precipitation. In April, temperatures range from a chilly minimum of -5°C (23°F) to an average of 9°C (49°F), peaking at a maximum of 25°C (77°F); however, the month also sees considerable rainfall, with 67 mm (2.6 in) falling over 11 days and humidity levels reaching 84%. In stark contrast, August brings warmer temperatures, with a minimum of 6°C (44°F), an average of 19°C (66°F), and highs up to 33°C (92°F). Additionally, August experiences more precipitation, totaling 152 mm (6.0 in) over 16 days, though humidity is slightly lower at 77%. For more detailed information, visit Biel/Bienne weather in August.
In April, temperatures can vary significantly throughout the month, with lows plummeting to -5°C (23°F) and highs reaching up to 25°C (77°F). This month experiences an average temperature of 9°C (49°F) and has relatively high humidity at 84%, along with 11 days of precipitation totaling 67 mm (2.6 in).
In contrast, September showcases milder weather, with minimum temperatures around 1°C (34°F) and maximums that can climb to 29°C (84°F). The average temperature rises to 15°C (59°F), and while humidity is slightly lower at 81%, September sees a slightly increased precipitation total of 82 mm (3.2 in) spread across 12 days. For more details on what to expect, you can check Biel/Bienne weather in September.
April and October present distinct weather patterns characterized by their respective temperature ranges and precipitation levels. In April, temperatures range from a chilly -5°C (23°F) to a mild 25°C (77°F), with an average of 9°C (49°F). The month experiences about 67 mm (2.6 in) of precipitation over 11 days, accompanied by a humidity level of 84%. In contrast, October sees slightly milder temperatures, with a minimum of -2°C (29°F), an average of 10°C (50°F), and a maximum of 23°C (73°F). However, it also brings increased precipitation, totaling 104 mm (4.1 in) over 13 days and higher humidity at 89%. For more specific insights into October weather in Biel/Bienne, you can visit Biel/Bienne weather in October.
April and November present distinct weather characteristics as we transition from spring to late autumn. In April, temperatures can range from a chilly -5°C (23°F) at night to a pleasant 25°C (77°F) during the day, with an average of 9°C (49°F). The month sees about 67 mm (2.6 in) of precipitation over approximately 11 days, and humidity levels hover around 84%. In contrast, November typically has slightly milder lows of -4°C (25°F) and average temperatures of just 4°C (40°F), with daytime highs reaching up to 20°C (68°F). This month experiences a bit more rainfall, with up to 84 mm (3.3 in) over 13 days and higher humidity at 89%. For a more detailed look at weather specifics, you may refer to Biel/Bienne weather in November.
April and December present vastly different weather patterns. In April, temperatures can range from a chilly -5°C (23°F) at night to a pleasant 25°C (77°F) during the day, with an average of about 9°C (49°F). However, it does experience higher humidity at 84%, alongside 67 mm (2.6 in) of precipitation over approximately 11 days. In contrast, December is significantly colder, with temperatures dropping to a minimum of -8°C (18°F) and peaking at just 13°C (56°F), resulting in a much lower average of 2°C (36°F). The month sees almost double the precipitation at 138 mm (5.4 in) spread across 19 days, and humidity levels rise to 91%, creating a more damp and chilly atmosphere. For more details on December's climate, you can visit Biel/Bienne weather in December.
April in Biel/Bienne emerges as a month of transition, heralding the shift from the chill of winter to the promise of spring. With moderate temperatures and an average humidity level of 84%, this month offers a refreshing respite compared to the harsher conditions of the preceding months. While precipitation remains moderate with around 11 days of rain, the occasional sunny spell reaches up to 25°C (77°F), inviting residents and visitors alike to enjoy the awakening landscapes. As April unfolds, it sets the stage for the vibrant weather ahead, making it a unique time to experience the charm of Biel/Bienne. For a deeper dive into what you can expect throughout the year, visit Biel/Bienne Climate.