Last updated: August 27, 2025
December in Biel/Bienne, Switzerland presents a charming yet chilly atmosphere, where temperatures range from a brisk -8°C (18°F) to a relatively mild 13°C (56°F), with an average hovering around 2°C (36°F). The month is marked by considerable precipitation, totaling 138 mm (5.4 in) across approximately 19 wet days, contributing to a humid environment with levels reaching 91%. As the city embraces the festive season, residents and visitors alike can expect a blend of frosty air and picturesque winter landscapes, perfect for cozy gatherings and enjoying the seasonal charm.
In December, Biel/Bienne experiences its transition into the heart of winter, with temperatures that reflect the chill of the season. The month typically sees a minimum of -8°C (18°F), while averaging around 2°C (36°F) and peaking at a comfortable 13°C (56°F). This pattern reveals a steady decline from the milder late autumn months, as temperatures dip further into the negatives compared to November. Despite the cold, the average daytime highs suggest that the sunshine can still break through the winter clouds, offering a refreshing atmosphere perfect for enjoying the picturesque winter scenery of the region. As the snow begins to blanket the landscape, December in Biel/Bienne embodies the charm of winter, attracting visitors to revel in its seasonal allure.
In December, Biel/Bienne experiences a notable increase in precipitation, registering 138 mm (5.4 in) over the month. This substantial amount falls over 19 days, making December one of the wettest months of the year in this Swiss locale. The trend of increased precipitation aligns with the drop in temperatures as winter settles in, fostering a chill that often leads to prolonged drizzle and light snow. Comparatively, December's rainfall surpasses that of several earlier months, underlining the shift towards wetter conditions that characterize the onset of winter. As the year draws to a close, the city's landscape is often enriched by this atmospheric bounty, setting the scene for a picturesque Swiss winter.
In Biel/Bienne, Switzerland, December wraps up the year with a humidity level of 91%, mirroring the high moisture levels typical of January and November. This pattern suggests a distinct seasonal trend, where winter months tend to maintain elevated humidity, reflecting the cool, crisp air prevalent during this time. As the year progresses from summer’s lower humidity peak of 77% in August to the winter's consistent high, one can observe a gradual escalation, linked to the region's climatic conditions. With levels hovering around the lower 80s in the warmer months and consistently climbing towards winter, December serves as a reminder of the chilly days, as humidity rises poignantly, enhancing the cool ambiance of the Swiss landscape.
In December, Biel/Bienne experiences a low UV Index of 2, similar to the trend seen in January and November. This means residents and visitors alike can enjoy outdoor activities with a relaxed approach to sun exposure, as the recommended burn time is a generous 45 minutes. As we move through the year, June and July showcase the highest UV levels, peaking at 9, which calls for greater sun protection. However, as winter settles in, the UV Index lowers, providing a reprieve from the intensified summer rays. For more detailed information, check the Biel/Bienne UV Index.
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In Biel/Bienne, Switzerland, December brings a modest 183 hours of sunshine, completing the year with a gentle glow. As winter settles in, the daylight hours show a steady decline from the peak of 418 hours in July. This downward trend is seen throughout the colder months, with sunlight dwindling significantly from the vibrant sunshine of mid-summer to the quieter days of late fall and early winter. However, compared to the preceding months, December’s sunlight still offers a reassuring warmth, bridging the gap towards the brighter days of January and February, which promise a gradual increase in sunshine hours. As the city embraces the holiday season, the sparkle of winter sun contrasts beautifully with the crisp air, inviting residents and visitors alike to enjoy the serene charm of Biel/Bienne during this enchanting month.
In Biel/Bienne, Switzerland, the likelihood of sunny weather in December is relatively low, with a mere 25% chance of sunshine. This is part of a noticeable trend as the year progresses from January's 15% to a peak in April at 51%. Following this high point, the chances of clear skies start to decline, with November dropping to 24% and December maintaining a comparable level. As winter sets in, the blend of cooler temperatures and shorter days contributes to the diminished likelihood of sunny weather, reminding residents and visitors alike to embrace the cozy charm of the season rather than rely on clear skies during this time of year.
In Biel/Bienne, Switzerland, the daylight duration offers a fascinating glimpse into the ebb and flow of seasonal change. As the year unfolds, daylight hours gradually increase from a modest 8 hours in January to a peak of 15 hours during the sun-drenched months of May through July. The vibrant days begin to recede as summer gives way to autumn, with daylight tapering to 12 hours in September and further diminishing to 9 hours by November. December, ushering in winter, reflects January's shorter days with only 8 hours of daylight. This cyclical pattern highlights the rhythm of nature, inviting residents and visitors alike to adapt and cherish the varying light throughout the year.
As December arrives in Biel/Bienne, Switzerland, the average wind speed picks up slightly to 2.5 m/s (6 mph), providing a refreshing contrast to the more subdued breezes of the summer months. The winds of December offer a gentle breath of winter, bridging the transition from the milder autumn air, which lingered around 2.1 m/s in November. This uptick hinting at the forthcoming chill serves as a reminder that winter is on its way, with the data suggesting a notable pattern: since May, when speeds peaked at 2.8 m/s, the winds have generally oscillated, showcasing a seasonal rhythm. Despite some lower readings during the summer months, December's winds offer a crisp clarity, evoking the freshness of the approaching winter season and inviting residents to embrace the outdoors, perhaps while bundled up in warm layers.
Weather in Biel/Bienne varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Biel/Bienne, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather is generally milder with average temperatures ranging from -8°C (18°F) to a maximum of 13°C (56°F), accompanied by a higher precipitation level of 138 mm (5.4 in) over 19 days. The humidity remains consistently high at 91%, contributing to a chilly but somewhat damp atmosphere.
In contrast, January sees a notable drop in minimum temperatures, reaching as low as -14°C (8°F), although the maximum can rise to 15°C (59°F). The month experiences less precipitation, totaling 98 mm (3.9 in) over 13 days, while maintaining the same high humidity level of 91%.
For more details on what to expect during this time, check out Biel/Bienne weather in January.
In December, the weather typically presents a chilly atmosphere with temperatures ranging from a minimum of -8°C (18°F) to a maximum of 13°C (56°F), averaging around 2°C (36°F). With high humidity levels at 91% and approximately 138 mm (5.4 in) of precipitation over 19 days, the month often feels damp and cold.
In contrast, February is slightly colder, featuring a minimum temperature of -13°C (8°F) and a maximum of 17°C (64°F), with an average of 3°C (38°F). Precipitation is lower in February at 84 mm (3.3 in), spread over just 12 days, and humidity remains relatively high at 89%. For a detailed overview of February's weather, check out Biel/Bienne weather in February. Overall, while both months bring cold temperatures, February offers a bit more variability in highs, with reduced moisture compared to December.
In December, the weather is generally colder, with average temperatures around 2°C (36°F) and a minimum of -8°C (18°F), while March sees a slight warming trend, averaging 5°C (42°F) and dropping to a minimum of -13°C (9°F). December experiences more precipitation, totaling 138 mm (5.4 in) over 19 days, compared to March's 100 mm (3.9 in) over 16 days, although the humidity remains relatively high in both months at 91% and 87%, respectively. As spring approaches in March, the maximum temperature can reach a mild 21°C (69°F), providing a noticeable contrast to the cooler December highs of 13°C (56°F). For more specific insights into March weather patterns, check the details at Biel/Bienne weather in March.
December weather is characterized by chilly temperatures, with a minimum dropping to -8°C (18°F) and an average around 2°C (36°F). The month experiences significant precipitation, totaling 138 mm (5.4 in) over 19 days, leading to a high humidity level of 91%. In contrast, April brings milder conditions, featuring a minimum temperature of -5°C (23°F) and an average of 9°C (49°F), reaching a maximum of 25°C (77°F). Precipitation in April is lighter at 67 mm (2.6 in) over 11 days, with a lower humidity of 84%. For a more detailed look at the April climate, visit Biel/Bienne weather in April.
The weather in December is markedly colder than in May, characterized by an average temperature of just 2°C (36°F) and frequent cold snaps that can bring temperatures as low as -8°C (18°F). In contrast, May enjoys a milder climate with average temperatures rising to 13°C (55°F) and highs reaching up to 29°C (85°F). Both months experience significant precipitation, with December receiving 138 mm (5.4 in) over 19 days, while May sees slightly more rainfall at 156 mm (6.1 in) across 18 days. Additionally, December's humidity is higher at 91%, compared to May's 80%, contributing to a distinct feel in each month's atmosphere. For more detailed information on May weather, you can visit Biel/Bienne weather in May.
When comparing the weather in December and June, it's evident that they present stark contrasts. December is characterized by cold temperatures, with a minimum of -8°C (18°F) and an average of just 2°C (36°F), while June enjoys much milder conditions, featuring temperatures that range from a minimum of 5°C (41°F) to a warm maximum of 33°C (92°F). In terms of precipitation, both months are relatively similar, with December receiving 138 mm (5.4 in) over 19 days and June slightly more at 141 mm (5.6 in) over 17 days. Notably, December has a higher humidity level at 91%, compared to June's 82%, adding to the chill of the winter month. For a closer look at June's delightful weather, check out Biel/Bienne weather in June.
December and July present contrasting weather conditions, highlighting the stark seasonal differences. In December, temperatures range from a chilly -8°C (18°F) to a mild maximum of 13°C (56°F), with an average of 2°C (36°F). This month also experiences significant precipitation, totaling 138 mm (5.4 in) over 19 days, along with high humidity levels averaging 91%. In stark contrast, July boasts a much warmer climate, where temperatures fluctuate between a minimum of 8°C (46°F) and a maximum of 35°C (95°F), with an average of 19°C (67°F). Though July encounters slightly more precipitation at 150 mm (5.9 in) across 15 days, the humidity is lower at 82%. For more details, check out Biel/Bienne weather in July.
December and August showcase starkly contrasting weather patterns. In December, temperatures range from a chilly -8°C (18°F) at night to a mild 13°C (56°F) during the day, with an average temperature of 2°C (36°F). The month experiences significant precipitation, totaling 138 mm (5.4 in) over 19 days, and a high humidity level of 91%, contributing to a damp and cold atmosphere.
In contrast, August offers a much warmer climate, with temperatures starting at a minimum of 6°C (44°F) and soaring up to a maximum of 33°C (92°F), averaging at 19°C (66°F). Although it sees slightly higher precipitation levels at 152 mm (6.0 in) over 16 days, the humidity is considerably lower at 77%, resulting in a more comfortable and summery environment.
For more insights into the warm conditions of August, check out the weather details here: Biel/Bienne weather in August.
December and September present contrasting weather experiences. In December, temperatures range from a chilly minimum of -8°C (18°F) to a maximum of 13°C (56°F), with an average temperature of 2°C (36°F). The month is characterized by considerable precipitation, with 138 mm (5.4 in) falling over 19 days, contributing to a high humidity level of 91%.
In contrast, September enjoys a milder climate, featuring temperatures that vary from a minimum of 1°C (34°F) to a pleasant maximum of 29°C (84°F), with an average of 15°C (59°F). The month sees less precipitation, with 82 mm (3.2 in) over approximately 12 days, and a slightly lower humidity at 81%. For more details on September weather, you can check Biel/Bienne weather in September.
Overall, while December is marked by cold and wet conditions, September offers warmth and comparatively drier weather.
In comparing the weather between October and December, it is evident that December experiences significantly colder temperatures, with a minimum of -8°C (18°F) and an average of just 2°C (36°F), compared to October's milder range, which sees a minimum of -2°C (29°F) and an average of 10°C (50°F). Precipitation is also more frequent in December, with 138 mm (5.4 in) falling over 19 days, while October records 104 mm (4.1 in) over 13 days. Additionally, December maintains higher humidity levels at 91%, slightly surpassing October's 89%. For more detailed information on October’s weather, you can visit Biel/Bienne weather in October.
In comparing the weather between November and December, it is evident that December is notably colder and wetter. December experiences lower minimum temperatures, dropping to -8°C (18°F), while November sees a milder minimum of -4°C (25°F). The average temperature also shifts downward, with December averaging 2°C (36°F) compared to November's 4°C (40°F). Additionally, December has more precipitation, measuring 138 mm (5.4 in) over 19 days, compared to November's 84 mm (3.3 in) over 13 days. Despite the slight increase in humidity from November to December—91% compared to 89%—it is clear that December is a chillier and wetter month overall. For more detailed insights into November weather, you can refer to Biel/Bienne weather in November.
As December settles over Biel/Bienne, the weather takes a notably colder turn compared to the milder months preceding it. With an average temperature hovering around freezing, residents can expect a significant drop in warmth, and the heightened humidity levels create an atmosphere that feels particularly brisk. Additionally, December sees a notable increase in precipitation, which manifests in frequent rainy days that can disrupt outdoor plans. This contrasts sharply with the drier conditions of autumn, painting the landscape in shades of gray and inviting the cozy ambiance of winter indoors. For those interested in further understanding how these trends fit into the broader climate patterns, visit Biel/Bienne Climate.