Last updated: August 27, 2025
December in Thun, Switzerland is characterized by a chilly bite, with average temperatures hovering around 0°C (32°F). Daily highs reach a maximum of 10°C (51°F), while nights can plunge to a brisk -12°C (11°F). As the festive season unfolds, residents and visitors alike can expect considerable precipitation, totaling 169 mm (6.7 in) over 17 days, contributing to a damp but cozy atmosphere. With a striking humidity level of 91%, the month captures the essence of winter, enveloping Thun in a serene, frosty charm.
As December descends upon Thun, Switzerland, the temperatures drop, offering a taste of winter's chill. With minimums dipping to around -12°C (11°F) and average temperatures hovering right at 0°C (32°F), the month sets the stage for a cozy atmosphere. While the daytime maximums reach a pleasant 10°C (51°F), the city often experiences a frosty air that blankets the landscape in a serene stillness. This transition from the milder temperatures of November, which see averages around 3°C (38°F), highlights the shift towards colder winter months. As Thun prepares for the festive season, residents and visitors alike can enjoy the crisp air that invites warm gatherings and festive cheer.
December in Thun, Switzerland, showcases a significant uptick in precipitation, with 169 mm (6.7 in) of rain measured over 17 days. This marks a notable increase compared to the slightly drier November, emphasizing the transition into winter as atmospheric conditions shift. The month not only retains its status as one of the wetter periods of the year, but it also contributes to the overall seasonal trend of increased precipitation experienced from late autumn into winter. With December's rainfall adding to the region's lush landscape, it creates a picturesque yet cozy ambiance, inviting residents and visitors alike to embrace the serene beauty of the Swiss winter.
December in Thun, Switzerland, marks the return of high humidity levels, reaching 91%, aligning closely with the year’s peak in January and November. This time of year sees a trend of increasing humidity as the winter chill sets in, creating a cozy atmosphere that hugs the city. After a gradual decline from the summer months—where August recorded a drier 77%—December’s humidity signals a transition into the colder season, reminiscent of the preceding winter months. The consistency of high humidity in December not only enhances the cool, crisp air but also contributes to the serene beauty of the Alpine landscape blanketed in snow.
As the year draws to a close in Thun, Switzerland, December brings a return to a low UV Index of 2, allowing residents and visitors to enjoy outdoor activities with minimal sun exposure risk. This trend marks a calming shift from the very high levels experienced in the summer months of June, July, and August, where the UV Index peaked at 10, demanding a cautious approach to sun safety. With the colder months, people can expect a longer burn time of 45 minutes in December, compared to just 15 minutes when the sun was more intense in earlier months. This gradual decline in UV exposure encourages a more relaxed but still vigilant attitude towards sun protection. For further insights into the UV Index throughout the year, visit Thun UV Index.
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In December, Thun, Switzerland, experiences a charming but moderate sunset, accumulating 195 hours of sunshine. As winter sets in, the hours of sunshine steadily decline from the lively summer months, peaking in July with 416 hours. The transition into winter is marked by a significant decrease from the vibrant autumn months, revealing a trend of waning light as the short days of December approach. While this month may not bask in the same abundant sunshine as early summer, it still offers a serene, crisp atmosphere, inviting cozy moments by the lake and delightful strolls through the snow-dusted streets. Embracing the beauty of this season, Thun showcases a unique blend of winter charm, making the most of the subtle sunlight that still graces the landscape.
In Thun, Switzerland, the likelihood of enjoying sunny weather in December stands at 42%, which reflects a moderate level of sunshine as the year winds down. As the seasons shift, there's a noticeable trend in sun exposure; while winter months generally showcase lower percentages, December holds its own compared to the preceding months. Interestingly, as autumn transitions into winter, the chance of sunny days brightens slightly, remaining remarkably higher than January’s dreary 19%. With the festive spirit in the air, the prospect of catching a glimpse of sunshine amidst the snowy landscapes adds a touch of charm to the December atmosphere in Thun.
In Thun, Switzerland, the ebb and flow of daylight throughout the year presents a captivating rhythm. Starting the year with 8 hours of daylight in January, the days gradually lengthen, peaking at a generous 15 hours during the summer months of May, June, and July. As autumn approaches, daylight begins its retreat, dwindling to 12 hours in September and then tapering off to 10 hours in October and 9 hours in November. The cycle completes with a return to 8 hours in December, mirroring the dawn of the year. This transition not only shapes the natural landscape but also influences the lifestyle of residents, who embrace the longer summer days while adapting to the cozy, darker winter months.
As December arrives in Thun, Switzerland, the wind begins to pick up slightly, with an average speed of 1.9 m/s (4 mph), surpassing the gentle breezes of the preceding summer and autumn months. This uptick signals a subtle transition into winter, where the air feels crisper and more invigorating. Notably, December's wind speed aligns closely with the earlier winter months of January and February, suggesting a consistent pattern of calmness alongside a refreshing bite in the air. The overall trend reflects a serene yet lively atmosphere, perfect for those looking to embrace the beauty of the Swiss landscape during this enchanting time of year.
Weather in Thun varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Thun, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January present noticeably different weather patterns. In December, temperatures range from a minimum of -12°C (11°F) to a maximum of 10°C (51°F), with an average temperature of 0°C (32°F). The month sees significant precipitation, totaling 169 mm (6.7 in) over 17 days, all while maintaining a high humidity level of 91%. In contrast, January experiences colder temperatures, with a minimum of -19°C (-2°F) and an average temperature of -2°C (29°F), though it can reach up to 11°C (53°F) at times. Precipitation decreases to 113 mm (4.5 in) over just 11 days, but the humidity remains consistent at 91%. For more detailed insights into the weather in January, you can visit Thun weather in January.
December and February exhibit distinct weather patterns, showcasing the transition from the colder depths of winter to slightly milder conditions. In December, temperatures can drop to a minimum of -12°C (11°F), with an average hovering around 0°C (32°F) and maximums reaching up to 10°C (51°F). This month is characterized by higher precipitation, totaling 169 mm (6.7 in) over 17 days and a humidity level of 91%. In contrast, February experiences even colder temperatures, with minimums dipping to -16°C (3°F) and maximums climbing to 16°C (60°F), which results in an average of 1°C (34°F). Notably, February has less precipitation at 99 mm (3.9 in) spread across 11 days and a slightly lower humidity of 89%. For a deeper look into February weather, you can explore Thun weather in February.
December and March present distinctly different weather patterns. In December, temperatures range from a frigid minimum of -12°C (11°F) to a mild maximum of 10°C (51°F), averaging around 0°C (32°F). The month sees significant precipitation of 169 mm (6.7 in) over 17 days, combined with high humidity at 91%. In contrast, March experiences lower minimum temperatures, dipping to -21°C (-6°F), but averages a more mild 3°C (39°F) and can peak at 17°C (64°F). Precipitation decreases to 121 mm (4.7 in) over 15 days, with humidity slightly lower at 87%. To explore more about March weather, check Thun weather in March.
In December, temperatures can drop as low as -12°C (11°F), with an average of around 0°C (32°F) and a maximum of up to 10°C (51°F). The month experiences significant precipitation, totaling 169 mm (6.7 in) over about 17 days, coupled with a high humidity level of 91%. In contrast, April brings a noticeable warming trend, where temperatures can range from a minimum of -11°C (12°F) to an average of 7°C (45°F) and peaking at 22°C (71°F). Precipitation is less frequent in April, with 88 mm (3.5 in) spread over 11 days and a slightly lower humidity of 84%. For more details, you can check Thun weather in April.
In December, the weather is much colder, with temperatures ranging from a chilling -12°C (11°F) at the minimum to a maximum of 10°C (51°F), averaging around 0°C (32°F). The month experiences significant precipitation, totaling 169 mm (6.7 in) over 17 days, accompanied by high humidity levels of 91%. In contrast, May presents a much milder climate, where temperatures can drop to -5°C (23°F) at their lowest and reach a pleasant maximum of 28°C (82°F), averaging 11°C (51°F). With slightly higher precipitation at 182 mm (7.2 in) over 19 days, humidity is lower at 80%. For a detailed look at May weather conditions, you can visit Thun weather in May.
December and June present stark contrasts in weather. December typically experiences temperatures ranging from a chilly -12°C (11°F) at night to a mild 10°C (51°F) during the day, with an average of 0°C (32°F). The month is marked by high humidity at 91% and considerable precipitation of 169 mm (6.7 in) over 17 days. In contrast, June boasts a more pleasant climate, with temperatures starting at a minimum of 3°C (37°F) and soaring to a maximum of 31°C (88°F), averaging around 16°C (60°F). Although it sees slightly higher precipitation at 197 mm (7.8 in) over the same number of rainy days, humidity is lower at 82%. For a detailed look at the June weather patterns, please check Thun weather in June.
December and July present stark contrasts in weather. In December, temperatures can plunge to a minimum of -12°C (11°F) and typically hover around freezing, with a maximum of 10°C (51°F). This winter month is characterized by high humidity at 91% and significant precipitation, averaging 169 mm (6.7 in) over 17 days. Conversely, July offers a much milder climate, with temperatures ranging from a minimum of 7°C (44°F) to a pleasant average of 17°C (63°F), peaking at a maximum of 31°C (89°F). The humidity is lower at 82%, and while it does see a bit more precipitation at 197 mm (7.8 in), it occurs over just 16 days, allowing for more sunny spells. For more details, you can check Thun weather in July.
December and August offer distinctly different weather experiences. In December, temperatures can plummet to a minimum of -12°C (11°F), with an average around freezing at 0°C (32°F) and a maximum of 10°C (51°F). This month is characterized by high humidity at 91% and considerable precipitation, averaging 169 mm (6.7 in) over 17 days. In contrast, August is much warmer, with temperatures ranging from a minimum of 6°C (43°F) to a comfortable average of 17°C (62°F) and highs reaching 30°C (86°F). While August also sees some rain, totaling 176 mm (6.9 in) over 15 days, the humidity is significantly lower at 77%. Overall, December is cold and damp, whereas August is warm and relatively more pleasant. For more details on the weather in August, check out Thun weather in August.
December and September offer stark contrasts in weather. In December, temperatures can drop to a chilling minimum of -12°C (11°F) and average around freezing at 0°C (32°F), peaking at a modest 10°C (51°F). Accompanying this cold, December sees significant precipitation of 169 mm (6.7 in) over 17 days, along with high humidity levels at 91%. In contrast, September experiences milder temperatures, ranging from a minimum of 1°C (34°F) to an average of 13°C (55°F), with a maximum of 25°C (78°F). Rainfall is less intense in September, totaling 105 mm (4.1 in) across 13 days, and the humidity is slightly lower at 81%. For a closer look at September conditions, you can explore Thun weather in September.
December weather is significantly colder and wetter compared to October. While October boasts milder temperatures, with averages around 8°C (48°F) and maximums reaching 21°C (71°F), December's average temperature plunges to around 0°C (32°F), with lows dipping as low as -12°C (11°F). Furthermore, December experiences more precipitation, totaling 169 mm (6.7 in) over 17 days, compared to October's 122 mm (4.8 in) over just 13 days. Humidity levels are also slightly higher in December at 91%, compared to 89% in October. For a more detailed overview of the October weather, you can check Thun weather in October.
December weather is notably colder and wetter than that of November. In December, average temperatures hover around 0°C (32°F), with minimums dropping to -12°C (11°F) and maximums reaching only 10°C (51°F). This contrasts sharply with November, where temperatures range from a minimum of -9°C (17°F) to a maximum of 19°C (67°F) and an average of 3°C (38°F). Additionally, December sees a significant increase in precipitation, totaling 169 mm (6.7 in) over 17 days, compared to 94 mm (3.7 in) across 13 days in November. The humidity rises slightly from 89% in November to 91% in December, contributing to a colder and more damp atmosphere. For more details about November's weather, you can visit Thun weather in November.
As December settles over Thun, the weather takes a distinctive turn compared to the warmer months, offering a blend of chill and charm. With a noticeable drop in temperatures, residents can expect the city to experience its coldest days, often hovering just above freezing, and even plunging further during the night. Precipitation becomes more frequent, with nearly half the month graced by rainfall or snow, ensuring the landscape is often dressed in a glistening coat of white. The high humidity levels further amplify the wintery feel, making this month a unique time to explore the serene beauty of Thun. For more insights on the seasonal variations, visit Thun Climate.