December Weather in Interlaken, Switzerland

Last updated: August 27, 2025

In December, Interlaken transforms into a winter wonderland, where temperatures range from a brisk -13°C (8°F) at night to a maximum of 9°C (49°F) during the day. Visitors should be prepared for a cozy yet chilly experience, with an average temperature hovering around -2°C (29°F). The region sees considerable precipitation, measuring 175 mm (6.9 in) over approximately 17 days, contributing to the picturesque snowy landscape. With humidity levels reaching a chilly 90%, the atmosphere is perfect for enjoying winter activities while snuggling up in warm accommodations.

December Temperature in Interlaken

As the winter chill sets in, Interlaken, Switzerland experiences a notable drop in temperatures throughout December, showcasing a range that typically hovers between a brisk -13°C (8°F) as the minimum to a mild 9°C (49°F) at its peak. The average temperature lingers around -2°C (29°F), making it a quintessential winter destination. This month reflects a clear trend of declining temperatures from the milder autumn months, with December feeling distinctly colder in comparison to the above-average warmth of November. As daylight dwindles and snow begins to blanket the picturesque landscapes, visitors can look forward to a magical winter atmosphere, perfect for captivating views and festive experiences.

December Weather in Interlaken: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Interlaken, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Interlaken, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec263035414857605953453529
Data source: Temperature data for Interlaken generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Interlaken

In December, Interlaken, Switzerland experiences a notable increase in precipitation, accumulating 175 mm (6.9 in) over the course of 17 days. This marks a significant uptick compared to the previous month, November, which saw only 97 mm (3.8 in) in precipitation across 13 days. The trend indicates that as winter deepens, the region becomes enveloped in heavier rainfall, creating a soggy backdrop for the snow-capped peaks that define the landscape. This increase in moisture is typical for December, positioning it as one of the wetter months of the year, setting the stage for a picturesque snowy season ahead. As the year draws to a close, the lush environment of Interlaken thus transitions into a picturesque winter wonderland.

December Precipitation Trends in Interlaken

The chart displays monthly precipitation patterns in Interlaken, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Interlaken, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1231031259418222521920312413897175
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Interlaken

As December arrives in Interlaken, Switzerland, humidity levels rise to a notable 90%, a reflection of the region's wintery embrace. This month marks a return to the high humidity seen at the start of the year, mirroring January's 92%. Following a slight dip throughout the spring and summer months—where humidity ranged from 80% to 87%—the autumn months brought a resurgence, with values climbing back to the upper 80s. The overall trend illustrates a pattern of seasonal fluctuation, showcasing Interlaken's transition from the mildness of summer to the crisp, moisture-laden atmosphere of winter. As the year closes, residents and visitors alike can expect a fresh, invigorating coolness enveloped in a blanket of humidity, setting the stage for picturesque winter landscapes.

December Average Humidity in Interlaken

This chart illustrates the average monthly humidity levels in Interlaken, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Interlaken is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Interlaken

In December, Interlaken, Switzerland experiences a low UV Index of 2, marking a significant decline from the sun's intensity present in the preceding months. This reduction translates to a more forgiving burn time of 45 minutes, allowing residents and visitors to enjoy the crisp winter air without the immediate concern of sunburn. The trend throughout the year shows a clear escalation in UV levels as spring and summer approach, peaking at a striking 10 in June and July. As winter sets in, the UV exposure eases up again, reminding us that even sunny winter days in the mountains come with lower sun intensity. For more detailed information on seasonal UV changes, check out Interlaken UV Index.

Maximum UV Index Levels in Interlaken for December

The chart shows the monthly maximum UV Index (UVI) for Interlaken in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Interlaken typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Interlaken December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Interlaken

In the enchanting town of Interlaken, Switzerland, December brings a cozy yet vibrant atmosphere, bathed in 195 hours of sunshine. While this marks a dip compared to the sun-soaked summer months, where July shines the brightest with 416 hours, it still offers a charming backdrop for winter adventures. As the year winds down, the gradual decline in sunlight from the peak of 361 hours in May to December's glow highlights a captivating transition from the lush splendor of spring to a serene winter landscape. This ebb and flow not only enhances the beauty of the snow-capped Alps but also invites visitors to embrace the unique allure of the season, where even in cooler months, the sun adds a touch of warmth to the crisp air.

Monthly Sunshine Duration in Interlaken: December Highlighted

The December sunshine duration represents the total number of hours Interlaken experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec169h229h299h356h361h386h416h384h322h285h230h195h
Data source: Interlaken December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Interlaken During December

In December, Interlaken, Switzerland, enjoys a 41% chance of sunny weather, which presents a delightful opportunity for visitors to embrace the winter landscape. While this figure is slightly lower than the sunniest months of April and March, it remains notably higher than the early winter months of January and February, which typically record only 19% and 38% chances of sunshine, respectively. This trend reveals that as the year closes, the likelihood of enjoying sunny days begins to rise, making December a perfect time for those looking to experience the charm of Interlaken's winter wonderland under bright, sunny skies. Whether you're planning snow sports or simply exploring the scenic beauty, December offers a balanced blend of festive cheer and the possibility of delightful sunny spells.

Percentage of Sunny Days in December in Interlaken

The chart illustrates the percentage of sunny days in Interlaken throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Interlaken experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%39%44%48%31%33%34%38%38%43%35%41%
Data source: Interlaken December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Interlaken in December

In Interlaken, Switzerland, December brings a notable decline in daylight, with only 8 hours to illuminate the winter landscape. This marks the shortest daylight duration of the year, following a gradual increase from just 9 hours in January, which peaks in the vibrant spring months of April to June at 13 to 15 hours. The trend clearly reflects the shift from the long, bright days of summer, where both June and July boast a generous 15 hours of daylight, to the stark contrasts of late autumn and early winter. As we transition from the cheerful 15 hours of May and June back down to the cold, crisp days of December, the decrease serves as a gentle reminder of the seasonal rhythms that shape life in this picturesque alpine region.

Average Daylight Hours in Interlaken for December

The chart illustrates the variation in daylight duration in Interlaken throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h10h 18m11h 56m13h 36m15h 2m15h 46m15h 22m14h 6m12h 30m10h 50m9h 22m8h 36m
Data source: Interlaken daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Interlaken

As December arrives in Interlaken, Switzerland, the gentle whisper of the wind picks up slightly, reaching an average speed of 1.7 m/s (4 mph). This marks a subtle uptick from the earlier months, hinting at the transition into winter. Interestingly, while the wind speeds remain relatively calm throughout the year, December's breezes stand out as one of the more invigorating moments, echoing the tranquil yet brisk ambiance of the Swiss landscape. In comparison to other months, the winter winds bring a refreshing crispness, complementing the magical transformation of the region into a winter wonderland. As the year closes, these pleasing gusts serve as a reminder of nature's serene presence amidst the serene mountain backdrop.

Average December Wind Speed in Interlaken

The chart displays monthly wind speed patterns in Interlaken, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.71.51.51.61.31.41.31.31.51.51.7 m/s
Data source: Interlaken December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Interlaken Compares to Other Months

Weather in Interlaken varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Interlaken, focusing on differences in temperature, rainfall, humidity, and UV levels.

In December, temperatures in the region typically range from a minimum of -13°C (8°F) to a maximum of 9°C (49°F), with an average of -2°C (29°F). The month sees considerable precipitation, totaling 175 mm (6.9 in) over about 17 days, accompanied by high humidity levels around 90%. In contrast, January experiences slightly colder conditions, with minimum temperatures dropping to -19°C (-1°F) while the maximum remains similar at 9°C (48°F), yielding an average of -3°C (26°F). Precipitation in January decreases to 123 mm (4.9 in), occurring over just 12 days, and humidity rises slightly to 92%. For a detailed look at January weather specifics, you can check this link: Interlaken weather in January.

In December, weather conditions are characterized by an average temperature of -2°C (29°F), with a maximum reaching 9°C (49°F) and a minimum of -13°C (8°F). The month is relatively wet, receiving 175 mm (6.9 in) of precipitation over 17 days, coupled with high humidity at 90%. In contrast, February experiences slightly milder conditions on average, with temperatures ranging from a minimum of -18°C (-1°F) to a maximum of 14°C (58°F) and an average of -1°C (31°F). February sees less precipitation, totaling 103 mm (4.0 in) across 11 days, while humidity remains similar at 89%. For a more detailed look at February weather specifics, you can visit Interlaken weather in February.

In December, temperatures range from a minimum of -13°C (8°F) to a maximum of 9°C (49°F), with an average temperature of -2°C (29°F). This month experiences significant precipitation, totaling 175 mm (6.9 in) over 17 days, coupled with a high humidity level of 90%. In contrast, March brings a colder minimum temperature of -23°C (-9°F) but a milder maximum of 16°C (60°F) and an average of 2°C (36°F). Precipitation decreases to 125 mm (4.9 in) over 15 days, with humidity slightly lower at 87%. For more detailed information on the weather during this time, you can check Interlaken weather in March.

December and April present stark contrasts in weather patterns. December is characterized by colder temperatures, with a minimum of -13°C (8°F) and an average of -2°C (29°F), while April offers a milder climate, featuring a minimum of -12°C (10°F) and an average of 5°C (42°F). Precipitation is more frequent in December, totaling 175 mm (6.9 in) over 17 days, compared to April's 94 mm (3.7 in) over just 12 days. Additionally, December maintains a higher humidity level at 90%, contrasted with April's 84%. For a deeper look at the specific weather trends in April, you can visit Interlaken weather in April.

December and May present contrasting weather conditions. In December, temperatures typically range from a chilly -13°C (8°F) to a maximum of just 9°C (49°F), with an average of -2°C (29°F). This month experiences considerable precipitation, averaging 175 mm (6.9 in) over 17 days, coupled with high humidity at 90%. In stark contrast, May enjoys milder temperatures, with a minimum of -7°C (20°F) and a pleasant maximum of 25°C (78°F), resulting in an average of 9°C (48°F). Though May sees slightly more precipitation at 182 mm (7.2 in) across 19 days, the humidity is lower at 80%. For those interested in a deeper look at May's weather, you can find more details here: Interlaken weather in May.

December and June present contrasting weather experiences. In December, temperatures can dip as low as -13°C (8°F), with an average of -2°C (29°F) and a maximum of 9°C (49°F). The month also sees significant precipitation, totaling 175 mm (6.9 in) over 17 days, coupled with high humidity levels of 90%. In stark contrast, June boasts more temperate conditions, with minimum temperatures around 1°C (34°F), an average of 14°C (57°F), and maximums rising to 29°C (85°F). June also experiences slightly more precipitation at 225 mm (8.9 in) over 18 days, although humidity is lower at 82%. For detailed information on the weather, you can refer to Interlaken weather in June.

December and July present stark contrasts in weather. In December, temperatures can drop as low as -13°C (8°F), with an average of -2°C (29°F) and highs reaching 9°C (49°F). The month is marked by considerable precipitation, totaling 175 mm (6.9 in) over 17 days, accompanied by high humidity levels of 90%. In contrast, July boasts much milder conditions, with minimum temperatures around 5°C (41°F), averaging 15°C (60°F), and maximums soaring to 29°C (84°F). While it experiences slightly higher precipitation of 219 mm (8.6 in) over 18 days, the humidity is lower at 83%. For a detailed look at the weather during this vibrant summer month, check out Interlaken weather in July.

December and August present stark contrasts in weather. In December, temperatures dip significantly, with minimums reaching as low as -13°C (8°F) and averages around -2°C (29°F), while maximums only rise to 9°C (49°F). The month is characterized by high humidity at 90% and considerable precipitation of 175 mm (6.9 in) over 17 days. In contrast, August enjoys milder temperatures, with minimums of 5°C (41°F), averages of 15°C (59°F), and highs soaring up to 28°C (82°F). Although August receives slightly more precipitation at 203 mm (8.0 in) across 18 days, it maintains a lower humidity level of 80%. For more details on the pleasant weather conditions, check Interlaken weather in August.

December and September present contrasting weather patterns. In December, temperatures can drop to a minimum of -13°C (8°F) and have an average of -2°C (29°F), while September enjoys milder conditions with a minimum of 0°C (32°F) and an average of 11°C (53°F). The maximum temperature in December reaches only 9°C (49°F), significantly lower than September's high of 23°C (73°F). Additionally, December experiences more precipitation, with 175 mm (6.9 in) over 17 days, compared to September's 124 mm (4.9 in) over 14 days. Humidity levels are also higher in December at 90%, compared to 83% in September. For further details, you can check Interlaken weather in September.

December and October present contrasting weather conditions. In December, temperatures are significantly colder, with a minimum of -13°C (8°F) and an average of -2°C (29°F), while October enjoys milder temperatures, ranging from a minimum of -4°C (26°F) to a maximum of 19°C (67°F). Precipitation is more frequent in December, occurring on 17 days with a total of 175 mm (6.9 in), compared to October's 13 days of rain totaling 138 mm (5.4 in). Both months share a high humidity level of 90%, but the overall chill of December makes it feel much harsher than the relatively comfortable October weather. For more specific details about October's climate, you can visit Interlaken weather in October.

In December, temperatures drop further compared to November, with a minimum of -13°C (8°F) and an average of -2°C (29°F), while November sees slightly milder temperatures with a minimum of -10°C (13°F) and an average of 2°C (35°F). December is also considerably wetter, receiving 175 mm (6.9 in) of precipitation over 17 days, while November has only 97 mm (3.8 in) spread across 13 days. Additionally, humidity levels remain high in both months, at 90% in December and 88% in November, contributing to a chilly atmosphere as winter approaches. For more details on November weather in the region, you can check Interlaken weather in November.

Compare Interlaken's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Interlaken

As December unfolds in Interlaken, the weather transforms into a chilly embrace, setting it apart from the milder months preceding it. With average temperatures dipping significantly, the days grow shorter and the nights longer, creating a cozy winter atmosphere. While precipitation increases, making for a wet and sometimes snowy landscape, the high humidity levels add to the crisp, refreshing air. This unique blend of cool temperatures and moist conditions invites visitors to indulge in the beauty of winter sports and festive charm. For a deeper dive into the year-round climate trends, explore Interlaken Climate.