Last updated: August 27, 2025
In April, Basel, Switzerland experiences a delightful blend of springtime warmth and occasional chill. The maximum temperature peaks at a pleasant 26°C (79°F), while the average hovers around a crisp 10°C (50°F) and can dip as low as -4°C (25°F) during colder nights. This month also sees 62 mm (2.4 in) of precipitation over about 10 days, contributing to the region's lush greenery. With an humidity level of 84%, the air carries a fresh, vibrant feel, making it an enchanting time to explore the city's blossoming landscapes.
In April, Basel, Switzerland, experiences a notable shift as winter's chill gives way to the warmth of spring. With minimum temperatures rising to a brisk -4°C (25°F) and average highs reaching a pleasant 26°C (79°F), locals and visitors alike embrace the changing season. This month marks a significant transition from the colder temperatures of March, which hovered around 6°C (43°F) on average, and showcases a fresh optimism as nature reawakens. Blossoming flowers and longer daylight hours accompany these rising temperatures, fostering an inviting atmosphere for outdoor activities and explorations in this picturesque city. As April unfolds, it truly heralds the arrival of spring, setting the stage for even warmer days ahead.
April in Basel, Switzerland, marks a notable decline in precipitation, with an average of 62 mm (2.4 in) over 10 days of rainfall. This decrease follows a wetter March, which saw 91 mm (3.6 in) across 15 days, suggesting that the transition into spring brings a slight reprieve from the heavier rains of early spring. As the days grow longer and temperatures rise, April's rainfall prepares the landscape for the lushness of May, which typically experiences a surge in precipitation to 133 mm (5.2 in). Overall, April’s moderate precipitation plays a crucial role in nurturing the blossoming scenery while hinting at the invigorating showers that lie ahead.
In April, Basel, Switzerland experiences a notable shift in humidity, dropping to 84% from March's 87%. This decline marks the beginning of a gradual decrease as the region transitions into spring and summer. As temperatures rise in May, humidity further recedes to 80%, reflecting a trend of diminishing moisture content leading into the warmer months. The data indicates a seasonal pattern where humidity peaks in the colder months—reaching 91% in January and December—before tapering off through the spring and summer, only to rise again as autumn approaches. This rhythmic fluctuation creates a refreshing environment in April, making it a delightful time to explore the city's blossoming landscapes.
As April unfolds in Basel, Switzerland, the UV Index reaches 6, categorizing it as high and signaling a shift toward increased sun exposure. This is a notable rise from March's 5 and highlights the transition into sunnier spring days, where the recommended burn time shortens to just 25 minutes. As the month progresses, residents and visitors alike should prepare for even higher values in May and June, when the UV Index escalates to 8 and 9, respectively, indicating very high exposure levels. With the warmer months approaching, it becomes increasingly important to stay sun-safe. For more insights on UV levels, check out the latest details at Basel UV Index.
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April shines brightly in Basel, Switzerland, as it emerges from winter's grasp, boasting an impressive 353 hours of sunlight. This is a remarkable leap from the 283 hours recorded in March, emphasizing the arrival of spring and longer, sunnier days. As the month progresses, the sunshine only intensifies, leading into May, when the city enjoys an even greater 361 hours of radiant warmth. This upward trend continues through the summer months, peaking in July with 413 hours, offering residents and visitors alike a vibrant atmosphere to explore the charming streets and picturesque landscapes. The gradual decline into autumn signals a transition, but April stands out as a significant turning point, marking the joyful embrace of sunlit days in Basel.
April marks a notable transition in Basel, Switzerland, as the likelihood of sunny weather reaches 52%, the highest point in the first half of the year. This shift follows a steady growth from 17% in January to 47% in March, indicating a gradual awakening from winter's grip. Unlike the somewhat unpredictable sunshine in May, which drops to 33%, April offers residents and visitors a promising taste of spring. As the days grow longer and warmer, this month stands out as a beacon of optimism in the annual weather cycle, making it a perfect time to enjoy the blossoming landscapes and outdoor activities.
As winter fades away, April heralds a delightful increase in daylight hours in Basel, Switzerland, illuminating the city for approximately 13 hours each day. This enhancement in sunlight marks a notable shift from the previous months; February's 10 hours and March's 11 hours have given way to the vibrant life that early spring brings. The trend continues into May, when daylight extends further to 15 hours, offering residents and visitors alike more time to enjoy the blossoming parks and picturesque landscapes. With this steady progression of daylight, April serves as a beautiful bridge between the darker winter days and the sun-soaked summer months ahead.
April in Basel, Switzerland, gently ushers in a refreshing yet calm breeze, with an average wind speed of 2.3 m/s (5 mph). This slight dip in wind speed from March’s 2.4 m/s reflects the transition from the brisk spring air towards the more temperate conditions of May, where winds pick up again to 2.8 m/s (6 mph). April's winds are often characterized by their soft whispers, cradling the blossoming landscape and inviting residents and visitors alike to enjoy the vibrant awakening of nature. As summer approaches, the gradual shift in wind dynamics sets the stage for warmer days, while retaining the distinct charm of Basel's springtime, making April a delightful blend of tranquility and potential.
Weather in Basel varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Basel, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January showcase notably different weather patterns. In January, temperatures are significantly colder, with a minimum of -13°C (8°F) and an average of just 1°C (35°F), while April enjoys much milder conditions, averaging around 10°C (50°F) and peaking at 26°C (79°F). January also sees higher humidity levels at 91% compared to April's 84%, contributing to a chillier feel. Precipitation is more abundant in January with 94 mm (3.7 in) over 12 days, contrasted with April's 62 mm (2.4 in) over 10 days. For a deeper dive into what January offers, check out Basel weather in January.
April and February present contrasting weather patterns. In April, temperatures range from a chilly minimum of -4°C (25°F) to a warm maximum of 26°C (79°F), with an average around 10°C (50°F). This month sees about 62 mm (2.4 in) of precipitation over roughly 10 days, accompanied by a relatively high humidity level of 84%. In contrast, February experiences more frigid conditions with minimum temperatures plunging to -14°C (7°F) and a maximum of only 18°C (65°F), averaging around 4°C (39°F). It also has a greater amount of rainfall, totaling 77 mm (3.0 in) across 12 days, and slightly higher humidity at 89%. For more details on February weather, visit Basel weather in February.
April generally brings milder temperatures compared to March, with minimums rising from -13°C (9°F) in March to -4°C (25°F) in April. The average temperature increases from 6°C (43°F) in March to 10°C (50°F) in April, reaching a maximum of 26°C (79°F). While March experiences higher precipitation levels at 91 mm (3.6 in) over 15 days, April sees a decrease to 62 mm (2.4 in) spread over 10 days. Additionally, humidity remains relatively high in both months, slightly easing from 87% in March to 84% in April. For more detailed information on March weather, visit Basel weather in March.
April and May present contrasting weather patterns as spring progresses. In April, temperatures range from a chilly minimum of -4°C (25°F) to a pleasant average of 10°C (50°F) and can peak at 26°C (79°F). The month is characterized by 62 mm (2.4 in) of precipitation over about 10 days, creating a humid environment with 84% humidity. In contrast, May sees an elevation in temperatures, with a minimum of 0°C (32°F), an average of 13°C (56°F), and highs reaching 30°C (87°F). However, conditions become wetter, with precipitation rising to 133 mm (5.2 in) occurring on 17 days, while humidity slightly decreases to 80%. For a detailed look at what to expect, check out Basel weather in May.
April and June present distinct weather patterns, marking a notable transition from spring to summer. In April, temperatures range from a chilly minimum of -4°C (25°F) to a pleasant maximum of 26°C (79°F), with an average of 10°C (50°F). The month sees about 62 mm (2.4 in) of precipitation distributed over 10 days, coupled with a high humidity level of 84%. In contrast, June experiences significantly warmer temperatures, ranging from a minimum of 5°C (42°F) to a sweltering maximum of 34°C (94°F), with an average temperature of 19°C (66°F). However, June is also wetter, receiving 125 mm (4.9 in) of rainfall over 16 days, but with slightly lower humidity at 82%. For those interested in the specifics of June weather, you can find more details here: Basel weather in June.
April and July present contrasting weather patterns, reflecting the transition from spring to summer. In April, temperatures range from a chilly minimum of -4°C (25°F) to a mild average of 10°C (50°F), peaking at a comfortable 26°C (79°F). However, the month experiences substantial precipitation, totaling 62 mm (2.4 in) over about 10 days, coupled with high humidity at 84%.
In contrast, July boasts warmer temperatures, with a minimum of 8°C (47°F) and an average of 20°C (68°F), soaring to a maximum of 37°C (98°F). The level of rainfall increases to 117 mm (4.6 in) spread across 14 days, while humidity slightly decreases to 82%. Overall, July offers a more intense summer experience compared to the cooler and wetter conditions of April. For more insights on July weather, visit Basel weather in July.
April and August exhibit distinct weather patterns, reflecting the transition from spring to summer. In April, temperatures typically range from a chilly minimum of -4°C (25°F) to a comfortable average of 10°C (50°F), peaking at a warm 26°C (79°F). This month sees about 62 mm (2.4 in) of precipitation over approximately 10 days, accompanied by high humidity levels of 84%. In contrast, August delivers a much warmer climate, with temperatures starting at a minimum of 6°C (43°F) and averaging 20°C (68°F), reaching a high of 35°C (95°F). Rainfall increases to 115 mm (4.5 in) across around 15 days, while humidity is slightly lower at 77%. The differences between these two months make each uniquely enjoyable in their own right. For more details, you can check Basel weather in August.
April and September offer distinct weather experiences. In April, temperatures can dip as low as -4°C (25°F) but generally average around 10°C (50°F), with a maximum reaching 26°C (79°F). The month tends to be quite humid, with an average humidity of 84% and 62 mm (2.4 in) of precipitation spread over 10 days. In contrast, September brings milder conditions, starting at a minimum of 1°C (35°F), averaging 16°C (60°F), and peaking at 30°C (86°F). While September experiences slightly more precipitation at 67 mm (2.6 in) over the same number of days, its humidity is a bit lower at 81%. Overall, September tends to feel warmer and drier than the springtime weather of April. For more detailed insights on September weather, browse Basel weather in September.
April and October showcase distinct weather patterns, with April typically presenting a broader range of temperatures. In April, temperatures can dip as low as -4°C (25°F) and reach highs of 26°C (79°F), averaging around 10°C (50°F). The month experiences 62 mm (2.4 in) of precipitation over about 10 days, paired with a humidity level of 84%. In contrast, October features a milder temperature range, with a minimum of -1°C (30°F) and a maximum of 24°C (76°F). The average temperature hovers around 11°C (51°F), while it sees increased precipitation at 92 mm (3.6 in) over roughly 14 days and a slightly higher humidity level at 89%. For a deeper dive into the specifics of October weather conditions, visit Basel weather in October.
April and November exhibit distinct weather characteristics, highlighting the transition between spring and autumn. In April, temperatures can vary significantly, ranging from a chilly minimum of -4°C (25°F) to a comfortable peak of 26°C (79°F), with an average of 10°C (50°F). The month experiences about 62 mm (2.4 in) of precipitation over approximately ten days, accompanied by a humidity level of 84%.
In contrast, November typically sees cooler averages, with temperatures ranging from -4°C (25°F) to a maximum of 21°C (70°F) and an average of only 5°C (41°F). This month tends to be wetter, accumulating around 79 mm (3.1 in) of rain across about thirteen days, while humidity rises slightly to 89%. Overall, while both months can start with cold nights, April offers a more temperate daytime experience than the generally cooler and wetter conditions of November. For a more detailed look at what to expect, check out Basel weather in November.
April and December present contrasting weather patterns. In April, temperatures typically range from a chilly -4°C (25°F) at night to a warm 26°C (79°F) during the day, with an average temperature of 10°C (50°F). With about 62 mm (2.4 in) of precipitation over roughly 10 days, humidity sits at 84%. In contrast, December experiences colder temperatures, with highs averaging only 14°C (57°F) and lows of -5°C (23°F). Rainfall is more frequent in December, accumulating to 129 mm (5.1 in) spread over 19 days, alongside higher humidity at 91%. For a deeper insight, you can explore Basel weather in December.
As April unfolds in Basel, the weather presents a refreshing departure from the chill of winter, ushering in a blend of warmth and lingering coolness. With maximum temperatures reaching up to 26°C, residents and visitors alike can enjoy the burgeoning spring—a stark contrast to the colder months. However, the month can still surprise with its occasional frosty mornings and rainfall, accumulating around 62 mm over ten days, contributing to a humidity level of 84%. This unique combination of mild warmth and brief showers makes April a transitional period, perfect for witnessing nature's revival. For more insights into what to expect throughout the year, visit Basel Climate.