Last updated: August 27, 2025
In August, Basel, Switzerland, experiences a delightful mix of summer warmth and occasional showers. With maximum temperatures reaching up to 35°C (95°F), the month offers an average warmth of 20°C (68°F), providing a pleasant escape from the heat. However, nights can be cooler, with temperatures dipping to a minimum of 6°C (43°F). Rainfall is also a significant characteristic of this period, as 115 mm (4.5 in) of precipitation falls over approximately 15 days, contributing to the region's lush greenery. Coupled with a humidity level of 77%, August in Basel presents a vibrant summer atmosphere, perfect for outdoor exploration amidst the picturesque scenery.
In August, Basel, Switzerland experiences a delightful warmth, with temperatures showing a notable ascent compared to earlier months. With minimums around 6°C (43°F) and an average of 20°C (68°F), the city basks in the height of summer. The maximum temperature can reach up to 35°C (95°F), making it one of the hottest months of the year. This rise follows a steady increase from the cooler spring days, with average temperatures gradually climbing from 10°C (50°F) in April to a summer peak. Such balmy weather invites both locals and tourists to enjoy outdoor activities, stroll along the scenic Rhine River, and immerse themselves in the vibrant culture of the city before the cooler months set in.
In August, Basel experiences a notable transition in its weather pattern, as average precipitation reaches 115 mm (4.5 in) over approximately 15 days of rain. This amount is slightly less than the previous months of June and July, which recorded 125 mm and 117 mm, respectively, indicating a relatively stable but slightly declining trend in precipitation as summer begins to edge towards autumn. The consistent rainfall contributes to the lush scenery, with August acting as a bridge between the vibrant summer rains and the drier spell that follows in September. This month's weather highlights the region's capacity to sustain greenery while hinting at the seasonal shift ahead, maintaining a delicate balance of warmth and moisture.
In August, Basel experiences a notable drop in humidity, settling at 77%, the lowest level of the year. This decrease marks a significant shift from the high humidity levels prevalent in the earlier months, such as January’s 91%. The trend suggests a gradual reduction in moisture content as summer peaks, providing a brief respite before the humidity begins to rise again in September, reaching 81%. Overall, Basel’s August atmosphere feels notably drier, allowing residents and visitors alike to enjoy the warm summer days with a refreshing ease.
In August, Basel experiences an UV Index of 8, categorizing it within the very high exposure range. This marks a slight decline from the peak of 9 seen in both June and July, yet still necessitates caution during sun exposure, with a burn time of just 15 minutes. As summer peaks, this trend highlights the importance of sun protection, especially as we transition into September, when the UV Index drops to 6. Over the months, the data showcases a fascinating shift from lower indexes in the winter, like 2 in January, to the intense summer levels, reflecting the seasonal changes that affect sun exposure. For more details on UV trends in Basel, visit Basel UV Index.
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August in Basel, Switzerland, continues the city's trend of abundant sunshine, accumulating an impressive 381 hours of bright rays. This peak summer month follows a vibrant July, which boasts the highest sunshine total of the year at 413 hours. As August transitions into autumn, the days gradually shorten, yet the lingering warmth is still palpable, making it a delightful time for outdoor activities. Interestingly, the sunny days begin to taper off in September, as the city shifts from the longest days of summer to the cozy charms of autumn with only 323 hours of sunshine. This gradual decline in sunlight reflects a broader pattern of declining daylight hours, taking Basel from the sun-soaked summer months into the more subdued atmosphere of fall.
In Basel, Switzerland, the likelihood of sunny weather showcases an invigorating trend as summer peaks in August with a 39% chance of sunshine. This month experiences a slight uptick from July’s 38%, suggesting a warm embrace of summer light before autumn's approach. While August doesn’t outshine earlier spring months like April with its 52% chance, it holds firm alongside September, which sees a 43% likelihood. The blend of sunshine in late summer perfectly complements the vibrant city life and outdoor activities, making it an appealing time for both locals and visitors to soak up the sun.
In August, Basel basks in a glorious 14 hours of daylight, a delightful remnant of summer's peak that begins to wane as the month progresses. Following the vibrant height of June and July, which each enjoy a maximum of 15 hours, daylight gradually tapers, signaling the transition into fall. This gradual decline from the earlier months underscores a seasonal rhythm, where daylight duration rises steadily from just 8 hours in January to a peak in mid-summer before gently receding. As summer gives way to autumn, August serves as a beautiful bridge—long enough to savor the outdoors, yet whispering hints of the cooler months ahead.
In Basel, Switzerland, the August wind offers a gentle embrace, with an average speed of 1.9 m/s (4 mph), marking a slight decline from the more spirited breezes of spring and early summer. As the year progresses, wind speeds typically hover between 2.4 m/s to 2.8 m/s in the lively months of January through May, but the languid warmth of August sees a notable drop. The trend continues into early autumn, with September recording even softer whispers of 1.7 m/s. This seasonal ebb and flow reflects not just the shifting climate, but a charming reminder of the transitional beauty that characterizes Basel's late summer, where breezes become more tranquil and the pace of life slows down.
Weather in Basel varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Basel, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present strikingly contrasting weather conditions. In August, temperatures range from a cool 6°C (43°F) at night to a warm 35°C (95°F) during the day, accompanied by high humidity levels of 77%. The month sees an average of 115 mm (4.5 inches) of precipitation, spanning about 15 days, which can contribute to a lush environment. In contrast, January experiences much colder temperatures, with a minimum of -13°C (8°F) and a maximum of 16°C (61°F), resulting in an average of just 1°C (35°F). Despite slightly lower precipitation at 94 mm (3.7 inches) over 12 days, January's humidity peaks at 91%, creating a chilly atmosphere. For more detailed insights, you can check Basel weather in January.
August and February present distinctly contrasting weather patterns. In August, temperatures range from a minimum of 6°C (43°F) to a sweltering maximum of 35°C (95°F), with an average of 20°C (68°F). The month also sees considerable rainfall, with 115 mm (4.5 in) over 15 days, and humidity levels peaking at 77%. In contrast, February experiences frigid conditions, with temperatures ranging from -14°C (7°F) to a maximum of 18°C (65°F), averaging just 4°C (39°F). Precipitation is lower at 77 mm (3.0 in) across 12 days, but humidity is slightly higher at 89%. For more detailed insights into the winter climate, check out Basel weather in February.
August and March present strikingly different weather patterns. In August, temperatures range from a cool 6°C (43°F) at night to a warm average of 20°C (68°F) during the day, peaking at a sweltering 35°C (95°F). This month is characterized by high humidity at 77% and significant rainfall, totaling 115 mm (4.5 in) over 15 days. In contrast, March offers a much chillier experience, with temperatures dropping to a minimum of -13°C (9°F) and averaging just 6°C (43°F), while capping at a mild 21°C (71°F). The humidity is slightly higher at 87%, and precipitation is also frequent but less intense, amounting to 91 mm (3.6 in) across the same number of days. For more details, check out Basel weather in March.
When comparing the weather in August and April, it's evident that August is generally much warmer and more humid. In August, temperatures range from a minimum of 6°C (43°F) to a maximum of 35°C (95°F), with an average of 20°C (68°F). In contrast, April sees cooler temperatures, with minimums of -4°C (25°F) and maximums of 26°C (79°F), and an average of 10°C (50°F). Additionally, August experiences more precipitation, totaling 115 mm (4.5 in) over 15 days, while April has 62 mm (2.4 in) spread across 10 days. The humidity in April is slightly higher at 84%, compared to August's 77%. For more detailed information on April weather, you can visit Basel weather in April.
When comparing the weather in August and May, significant differences in temperature and precipitation emerge. August typically experiences a more substantial temperature range, with minimums around 6°C (43°F) and maximums reaching up to 35°C (95°F), resulting in an average of 20°C (68°F). In contrast, May's temperatures are cooler, with a minimum of 0°C (32°F) and a maximum of 30°C (87°F), leading to a lower average of 13°C (56°F). While August has a total precipitation of 115 mm (4.5 inches) over 15 days, May sees slightly higher precipitation at 133 mm (5.2 inches) across 17 days. Humidity remains fairly similar between the two months, with August at 77% and May at 80%. For more detailed information, you can visit Basel weather in May.
When comparing the weather in August and June, we can see some notable similarities and differences. August typically experiences a broader temperature range, with minimums of 6°C and maximums reaching up to 35°C, resulting in an average of 20°C. In contrast, June has slightly cooler temperatures, with a minimum of 5°C and an average of 19°C, peaking at 34°C. Precipitation is slightly lower in August, with 115 mm over 15 days, compared to June's 125 mm over 16 days, indicating a marginally wetter month. Humidity levels are also noteworthy; August has a humidity of 77%, while June is a bit higher at 82%. For more detailed information, check out Basel weather in June.
In comparing the weather between July and August, we see a slight decrease in minimum temperatures, with August starting at 6°C compared to July's 8°C. Both months have the same average temperature of 20°C, but July has a higher maximum temperature of 37°C, whereas August peaks at 35°C. Precipitation levels are similar, with August experiencing 115 mm over 15 days and July recording 117 mm over 14 days. Humidity is also slightly lower in August at 77%, compared to July’s 82%. For more details, you can check Basel weather in July.
August and September showcase a notable transition in weather conditions. In August, temperatures can reach a maximum of 35°C (95°F), while September sees a decrease, with a maximum of 30°C (86°F). The average temperature also drops from 20°C (68°F) in August to 16°C (60°F) in September. Precipitation is more frequent in August, averaging 115 mm (4.5 in) over 15 days compared to September’s 67 mm (2.6 in) over 10 days, though humidity remains relatively high, peaking at 81% in September versus 77% in August. For more details, check out Basel weather in September.
August and October present a striking contrast in weather conditions. In August, temperatures can range from a chilly 6°C (43°F) at night to a scorching high of 35°C (95°F) during the day, with an average of 20°C (68°F). The month is characterized by high humidity at 77% and considerable rainfall, with 115 mm (4.5 in) spread over 15 days. In contrast, October sees much cooler temperatures, with nighttime lows dipping to -1°C (30°F) and daytime highs reaching a mild 24°C (76°F), averaging 11°C (51°F). While precipitation decreases to 92 mm (3.6 in) across 14 days, the humidity rises slightly to 89%. For more detailed information, check out Basel weather in October.
August and November present a stark contrast in weather conditions. In August, temperatures range from a minimum of 6°C (43°F) to a maximum of 35°C (95°F), with an average of 20°C (68°F), creating a warm and humid atmosphere with high humidity levels at 77%. Precipitation is also notable, with 115 mm (4.5 in) over 15 days, signaling frequent rain but also the possibility of sunny breaks.
In contrast, November brings cooler temperatures, with a minimum of -4°C (25°F) and an average of just 5°C (41°F). Although the maximum reaches 21°C (70°F), this is far less common than in August. November features lower overall precipitation of 79 mm (3.1 in) over 13 days, but the humidity rises to 89%, which can make the air feel quite damp. For more detailed insights, check out Basel weather in November.
August and December present contrasting weather patterns. In August, temperatures can soar to a maximum of 35°C (95°F) with an average of 20°C (68°F), while December experiences much cooler temperatures, peaking at 14°C (57°F) and averaging only 3°C (38°F). Additionally, while August has a relatively lower humidity of 77%, December sees an increase to 91%, making it feel even chillier. Precipitation is more frequent in December, with 19 rainy days contributing to a total of 129 mm (5.1 in), compared to 15 days and 115 mm (4.5 in) in August. For more specific details, you can check out Basel weather in December.
As August sweeps into Basel, the city experiences a vibrant and warm atmosphere, contrasting sharply with the cooler and wetter months that precede it. With maximum temperatures soaring to 35°C (95°F), residents and visitors enjoy longer, sun-filled days, making it the perfect time for outdoor activities. However, it's worth noting that the month also brings its share of rain, averaging 115 mm (4.5 in) over 15 days, meaning that those balmy afternoons can sometimes come with unexpected showers. The increased humidity of 77% adds a tropical touch, creating a unique blend of warmth and mugginess. For a deeper understanding of how August fits into Basel's overall climate pattern, explore more at Basel Climate.