Last updated: August 27, 2025
In the picturesque city of Biel/Bienne, Switzerland, the weather in August showcases a delightful range of temperatures, peaking at a scorching 33°C (92°F), while the average lingers around a comfortable 19°C (66°F). Visitors can enjoy warm days contrasted with cooler nights, dipping to a brisk 6°C (44°F). However, be prepared for frequent rain, as 152 mm (6.0 in) of precipitation graces the city over 16 days throughout the month, contributing to a relatively high humidity level of 77%. This blend of warmth and moisture creates an enchanting summer atmosphere, perfect for exploring the scenic landscapes and vibrant culture of Biel/Bienne.
In Biel/Bienne, August serves up warm summer temperatures that continue the trend set earlier in the season. The minimum temperature hovers around 6°C (44°F), while the average sits comfortably at 19°C (66°F), leading to delightful days perfect for outdoor activities. Although max temperatures can reach 33°C (92°F), providing plenty of opportunities to soak up the sun, the humidity remains manageable compared to the rising heat of July. As summer ebbs toward September, the gradual cooling hints at the changing seasons, yet August retains a vibrant warmth that invites both residents and visitors to enjoy the dynamic outdoor life in this picturesque Swiss locale.
In August, Biel/Bienne experiences a notable surge in precipitation, recording 152 mm (6.0 in) over 16 days. This makes it one of the wetter months of the year, just slightly below the levels seen in June and July. The consistent rainfall during this period contributes to the lush greenery that characterizes the landscape as summer transitions into autumn. Following the pattern established in previous months, precipitation is prevalent, yet the combination of warmer temperatures and longer daylight hours in August often leads to brief sunny interludes, creating a pleasant contrast. Overall, this month is emblematic of the shift from the intense rain of early summer to the more variable weather patterns of late summer, highlighting the dynamic climate of Biel/Bienne.
In Biel/Bienne, Switzerland, August marks a noteworthy shift in humidity levels as they dip to 77%, making it the driest month of the year. This decline follows a gradual decrease from the high humidity typical of winter months, which range from 89% to 91%. As spring and summer unfold, humidity levels typically taper off, with August standing out as the lowest point before they begin to rise again in September to 81%. Overall, the transition from the humid embrace of early months to the relatively drier August highlights a seasonal shift, inviting residents and visitors alike to enjoy the milder, more comfortable climate.
Throughout the summer months, Biel/Bienne, Switzerland, experiences a significant uptick in UV exposure, peaking in June and July with an impressive UV Index of 9, categorizing it as very high and necessitating careful sun protection with a burn time of just 15 minutes. As August arrives, the UV Index slightly dips to 8, remaining in the very high exposure category, but still demanding vigilance against sunburn. This trend starkly contrasts the cooler months, where from November to February, the UV Index hovers between 2 and 3, indicating a low to moderate risk that allows for longer sun exposure without immediate concern. As the seasons transition back to autumn, September sees a decrease to 6 (high), reminding residents and visitors alike of the importance of adapting sun safety practices throughout the year. For more detailed insights on sun exposure, visit Biel/Bienne UV Index.
UV Risk Categories
In August, the charm of Biel/Bienne continues to shine with an impressive 388 hours of sunshine, making it a delightful month for outdoor enthusiasts. Following the peak of July with 418 hours, August experiences a slight dip, yet still holds onto the summer warmth as it transitions into early autumn. The steady increase in sunshine from January's mere 159 hours to the vibrant summer months illustrates a clear trend of blossoming brightness throughout the year, with a significant surge that peaks mid-summer before gradually tapering off into the fall months. This consistent influx of sunlight not only enhances the beauty of Biel/Bienne's landscapes but also serves as a joyful invitation for locals and visitors alike to enjoy the city's numerous outdoor activities and scenic views.
In Biel/Bienne, Switzerland, the likelihood of sunny weather shows a slight upward trend as summer peaks, with August presenting a 38% chance of sun. This month, while still below the best summer months, benefits from warmer temperatures and longer days, making it a popular choice for outdoor activities. Notably, this probability closely follows July's 37%, suggesting that while occasional cloud cover can occur, residents and visitors can still anticipate many enjoyable sunny moments. As autumn approaches in September, the chances remain relatively stable at 39%, hinting that the sunny days aren't entirely behind us even as summer wanes.
In Biel/Bienne, Switzerland, the ebb and flow of daylight throughout the year showcases a distinct seasonal rhythm. August, with its 14 hours of daylight, marks a gentle tapering from the long, sun-kissed days of summer. After reaching a peak of 15 hours in both June and July, August transitions into the cooler seasons while still providing plenty of natural light for outdoor activities. As autumn approaches, the day length begins to dwindle, with September seeing a decrease to 12 hours. This gradual change captures the essence of late summer, where longer daylight hours slowly yield to the charming hues of autumn, creating a picturesque backdrop for both residents and visitors alike.
In August, the average wind speed in Biel/Bienne, Switzerland, gently settles at 1.9 m/s (4 mph), reflecting a trend of overall calmer breezes compared to earlier months. Following a slight increase in May, which recorded 2.8 m/s (6 mph), the onset of summer sees a gradual decline in wind speed, peaking in tranquility during August. This aligns with the preceding months of July and June, which also experienced lighter winds, highlighting a common pattern as the summer progresses. As autumn approaches, there is a subtle uptick in wind speeds, hinting at the seasonal shift ahead and creating a serene atmosphere in this charming Swiss landscape.
Weather in Biel/Bienne varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Biel/Bienne, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present quite contrasting weather patterns. In August, temperatures range from a mild 6°C (44°F) at night to a warm 33°C (92°F) during the day, with an average of 19°C (66°F). This month also experiences considerable precipitation, totaling 152 mm (6.0 in) over about 16 days, and humidity levels are relatively high at 77%. In stark contrast, January is much colder, with temperatures plummeting to a minimum of -14°C (8°F) and a maximum of 15°C (59°F), averaging around 1°C (33°F). This month has lower precipitation at 98 mm (3.9 in) spread over 13 days, accompanied by even higher humidity at 91%. For those interested in more details, you can explore Biel/Bienne weather in January.
In comparing the weather of August and February, it's clear that these months showcase stark contrasts. August experiences much warmer temperatures, with averages around 19°C (66°F) and highs reaching up to 33°C (92°F), while February's temperatures are considerably colder, averaging just 3°C (38°F) and peaking at 17°C (64°F). Additionally, August sees more precipitation, totaling 152 mm (6.0 in) over about 16 days, compared to February's 84 mm (3.3 in) spread over 12 days. Interestingly, February has slightly higher humidity levels at 89%, compared to August's 77%, contributing to a different feel in the air. For more detailed insights, you can check out Biel/Bienne weather in February.
August and March present contrasting weather experiences. In August, temperatures range from a minimum of 6°C (44°F) to a maximum of 33°C (92°F), with an average of 19°C (66°F), making it a warm and humid month with 152 mm (6.0 in) of precipitation spread over 16 days and humidity levels at 77%. In comparison, March offers a cooler atmosphere, with temperatures fluctuating between a minimum of -13°C (9°F) and a maximum of 21°C (69°F), averaging just 5°C (42°F). Despite experiencing 100 mm (3.9 in) of precipitation over the same 16 days, March has a higher humidity level at 87%. For a detailed look at March weather, you can visit Biel/Bienne weather in March.
When comparing the weather between April and August, a stark contrast emerges. April experiences cooler temperatures, ranging from a minimum of -5°C (23°F) to a maximum of 25°C (77°F), with an average of 9°C (49°F). The precipitation is relatively low at 67 mm (2.6 in) over 11 days, accompanied by a humidity level of 84%. In contrast, August boasts much warmer conditions, with temperatures fluctuating from a minimum of 6°C (44°F) to a maximum of 33°C (92°F) and an average of 19°C (66°F). The month is also marked by higher precipitation at 152 mm (6.0 in) across 16 days, and a slightly lower humidity of 77%. For more detailed insights into the April weather in Biel/Bienne, you can check Biel/Bienne weather in April.
Comparing the weather in August and May reveals distinct differences in temperature and precipitation patterns. August tends to be warmer, with average temperatures ranging from a minimum of 6°C (44°F) to a maximum of 33°C (92°F), while May temperatures are generally cooler, with a minimum of -1°C (30°F) and a peak of 29°C (85°F). Despite similar levels of precipitation—152 mm (6.0 in) in August and 156 mm (6.1 in) in May—the latter experiences slightly more rainy days, with 18 compared to August's 16. However, the humidity in both months stays relatively high, at 77% in August and 80% in May. For more details on May weather, you can check this link: Biel/Bienne weather in May.
When comparing the weather in August and June, both months experience a similar range of temperatures, with maximums reaching up to 33°C (92°F). However, August tends to have slightly warmer average temperatures, with an average of 19°C (66°F) compared to June's 18°C (64°F). Precipitation levels are quite close, with August receiving 152 mm over 16 days and June slightly less at 141 mm over 17 days. Humidity is generally higher in June at 82%, versus 77% in August. For more detailed insights, you can visit Biel/Bienne weather in June.
In comparing the weather patterns of July and August, we note some interesting differences. July features a slightly warmer temperature range, with a minimum of 8°C (46°F) and a maximum of 35°C (95°F), alongside an average of 19°C (67°F). In contrast, August sees cooler minimums of 6°C (44°F) and slightly higher maximums at 33°C (92°F). Both months exhibit similar precipitation levels, with July recording 150 mm (5.9 in) over 15 days and August slightly more at 152 mm (6.0 in) over 16 days. Additionally, humidity remains high in both months, with July at 82% and August at 77%. For more details on July weather, you can refer to Biel/Bienne weather in July.
August and September showcase a distinct shift in weather patterns. In August, temperatures range from a minimum of 6°C (44°F) to a high of 33°C (92°F), with an average temperature of 19°C (66°F). The month experiences significant rainfall, totaling 152 mm (6.0 in) over 16 days, and the humidity levels hover around 77%.
In contrast, September sees a drop in overall temperatures, with a minimum of 1°C (34°F) and a maximum of 29°C (84°F), resulting in a cooler average of 15°C (59°F). Precipitation decreases to 82 mm (3.2 in) over 12 days, while humidity slightly rises to 81%. For a more detailed look at the weather in September, check out Biel/Bienne weather in September.
In comparing the weather of August and October, there are notable contrasts. August experiences warmer temperatures with a minimum of 6°C (44°F), an average of 19°C (66°F), and a maximum of 33°C (92°F). This month also sees significant precipitation, totaling 152 mm (6.0 in) over 16 days, accompanied by a humidity level of 77%. In contrast, October is much cooler, with temperatures dipping as low as -2°C (29°F) and averaging 10°C (50°F); its maximum reaches 23°C (73°F). Precipitation in October is less at 104 mm (4.1 in) spread over 13 days, with a higher humidity of 89%. For more details, you can check the Biel/Bienne weather in October.
August and November present contrasting weather patterns. In August, temperatures range from a mild 19°C (66°F) on average to a scorching 33°C (92°F) at their peak, accompanied by significant rainfall of 152 mm (6.0 in) over 16 days. The high humidity level of 77% adds to the summer's stickiness. In stark contrast, November showcases much cooler conditions, with averages dropping to just 4°C (40°F) and maximum temperatures reaching 20°C (68°F). Precipitation decreases to 84 mm (3.3 in) over 13 days, but humidity rises slightly to 89%. For a more detailed overview of November weather, you can visit Biel/Bienne weather in November.
August and December present notably different weather conditions, reflecting the stark transition between summer and winter. In August, temperatures range from a minimum of 6°C (44°F) to a maximum of 33°C (92°F), with an average of 19°C (66°F), creating a warm atmosphere. The month experiences significant rainfall of 152 mm (6.0 in) over 16 days, and humidity averages around 77%, contributing to a muggy feel. In contrast, December offers a much cooler climate, with temperatures dipping to a minimum of -8°C (18°F) and peaking at 13°C (56°F), leading to a chilly average of 2°C (36°F). Precipitation is slightly lower at 138 mm (5.4 in) across 19 days, and the humidity rises to 91%, creating a damp and cold environment. For more detailed information about the weather in December, visit Biel/Bienne weather in December.
August in Biel/Bienne showcases a warm and humid climate, standing out as a highlight of the summer months. With its maximum temperatures pushing into the low 30s°C, this month invites residents and visitors alike to enjoy outdoor activities under the sun. However, the fluctuations in temperature—from cooler nights to sweltering days—contrast sharply with the more moderate conditions of spring and autumn. August also tends to witness higher precipitation, with rain gracing the area on approximately half the days, making it a time when the landscape flourishes. For those wanting to dive deeper into what to expect throughout the year, check out the detailed insights on the Biel/Bienne Climate.