Last updated: August 27, 2025
In Grachen, Switzerland, December ushers in a winter wonderland, characterized by an average temperature of -8°C (17°F), with highs reaching up to 5°C (42°F) and chilling lows plummeting to -28°C (-18°F). This month is marked by considerable precipitation, accumulating approximately 170 mm (6.7 in) over 17 days, contributing to a humid atmosphere with levels reaching 90%. As the snow blankets the picturesque landscape, December offers a captivating backdrop for winter enthusiasts and adventurers alike, making it an enchanting time to explore this Alpine destination.
December in Grachen, Switzerland, ushers in the deep chill of winter, with temperatures that can plunge to a brisk -28°C (-18°F) at night. The average temperature hovers around -8°C (17°F), effectively setting the scene for a picturesque snowy landscape that is ideal for winter sports enthusiasts. By day, the mercury struggles to rise above 5°C (42°F), ensuring that the village remains enveloped in a cozy blanket of frost. This month stands out as one of the coldest in the annual climate cycle, following November's frigid patterns and hinting at the extreme winter temperatures that will characterize the months to come. Overall, December in Grachen offers both a serene winter wonderland and an invigorating escape into the heart of the Swiss Alps.
December in Grachen, Switzerland, marks a notable climax in the precipitation pattern of the year, with a significant 170 mm (6.7 in) of rainfall recorded over 17 days. This spike stands out against the backdrop of preceding months, showcasing a trend toward higher wetness as winter sets in. Notably, December's rainfall is the highest of any month, surpassing even the vibrant spring and summer seasons. As the snow begins to blanket the picturesque landscape, the increased precipitation not only contributes to the enchanting winter scenery but also supports vital water resources for the months ahead. With nearly every other month experiencing fewer days of rainfall, December clearly establishes itself as a crucial period for both the region’s hydrological balance and its breathtaking winter allure.
In December, Grachen, Switzerland experiences a humidity level of 90%, aligning with the higher moisture observed in the colder months. As we examine the trends throughout the year, it's evident that humidity peaks during the winter months of January and October, both registering impressive levels at 92% and 90% respectively. Following the relatively mild summer months of July and August, where humidity drops to 83% and 80%, the trend shifts back to more humid conditions in late fall. Notably, December's humidity ties with October, reinforcing the notion that winter in Grachen brings a consistent, moist atmosphere, making it a quintessential destination for winter enthusiasts seeking a snowy retreat.
As the year draws to a close, December in Grachen, Switzerland, offers a more subdued UV Index of 2, categorized as low. This reduction in UV exposure allows for a burn time of about 45 minutes, a welcome reprieve compared to the extremes of summer months, which see indices peaking at 11 in June. Following a steady climb from January to April, where the UV Index shifts from a moderate 3 to a very high 8, winter brings a gentle easing in sun strength. The upward trend peaks in the warmer months, but by December, the sun’s rays are less intense, making it easier for residents and visitors to enjoy outdoor activities without the intense sunburn risks of earlier months. For those looking to plan their sun exposure wisely, detailed information can be found at Grachen UV Index.
UV Risk Categories
December in Grachen, Switzerland, offers a delightful contrast to the sun-soaked months preceding it. As the year winds down, the 202 hours of sunshine seen in December reflect a tapering trend following the peak brightness of 416 hours in July. While the days grow shorter in this winter wonderland, December still provides a respectable amount of sunlight, hinting at the comfort of cozy chalets and stunning alpine views. This month captures a gentle decline from the luminous spring and summer months, showcasing the enchanting charm of a snow-kissed landscape under a tranquil, albeit muted, sun. As winter sets in, Grachen remains a beacon of beauty, inviting visitors to relish the serene snowy days that December brings.
In December, Grachen, Switzerland experiences a 37% chance of sunny weather, a figure that is notably higher than several preceding months like January and June. This makes it a promising time for visitors seeking a mix of winter charm and occasional sunshine. Notably, December shares this sunniness with both February and August, indicating a more favorable trend towards brighter days as the year winds down. Although the weather can be unpredictable during the winter months, the relatively better odds of sun in December might just allow for some delightful outdoor activities amidst the stunning Alpine landscape.
In December, Grachen, Switzerland experiences a notable shift in daylight duration, with just 8 hours of sunlight. This decrease marks the culmination of a gradual decline that begins with the peak daylight of 15 hours in June and July. As the year progresses, each month witnesses a subtle retreat in daylight, from 14 hours in May to 10 hours by October. Despite the shorter days, December embodies the quiet beauty of winter, casting a serene atmosphere over the enchanting Alpine landscape. The transition from the long summer days to the crisp and cozy winter evenings showcases the stunning seasonal cycle that defines this picturesque region.
As December arrives in Graichen, Switzerland, the tranquility of winter sets in alongside a gentle increase in wind activity, with an average speed of 1.3 m/s (3 mph). This marks a subtle rise from the quieter winds of the previous summer months, where speeds dipped to as low as 0.9 m/s (2 mph) in September. Throughout the year, Graichen experiences a predominantly calm climate, particularly in summer, with winds often hovering around 1.0 m/s. However, December's wind seems to whisper the promise of winter's full embrace, reflecting the gradual seasonal shift towards more invigorating breezes. The wind patterns showcase a year where the serenity of winter meets the refreshing swirls of air, inviting both locals and visitors to savor the beauty of Graichen's snowy landscapes.
Weather in Grachen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Grachen, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather presents a biting chill with temperatures ranging from a minimum of -28°C (-18°F) to an average of -8°C (17°F), and a peak of just 5°C (42°F). The month also sees significant precipitation, with 170 mm (6.7 in) spread over 17 days, contributing to a high humidity level of 90%. In contrast, January experiences slightly milder temperatures, with a minimum of -27°C (-17°F) and an average of -10°C (15°F), while maintaining the same maximum of 5°C (41°F). Precipitation decreases to 125 mm (4.9 in) over just 11 days, and humidity rises slightly to 92%. For more detailed insights, you can check Grachen weather in January.
In December, temperatures often plunge to a minimum of -28°C (-18°F) and average around -8°C (17°F), peaking at a maximum of 5°C (42°F). The month is notably wet, with a total precipitation of 170 mm (6.7 in) over 17 days, and humidity is quite high at 90%. In contrast, February sees slightly milder weather, with minimum temperatures of -24°C (-10°F), an average of -6°C (22°F), and a maximum reaching 9°C (48°F). Precipitation decreases significantly to 82 mm (3.2 in) over 12 days, and humidity remains comparable at 89%. For more insights on February’s conditions, check out Grachen weather in February.
In December, the weather is significantly colder, with average temperatures hovering around -8°C (17°F) and reaching a maximum of only 5°C (42°F). The month is characterized by high humidity at 90%, with approximately 170 mm (6.7 in) of precipitation spread over 17 days. In contrast, March brings slightly milder conditions, where the average temperature rises to -3°C (27°F), and daytime highs can reach up to 12°C (53°F). Although March has lower overall precipitation at 109 mm (4.3 in) over 15 days, the humidity remains relatively high at 87%. For a more detailed understanding of March weather specifics, you can visit Grachen weather in March.
In December, temperatures can plummet to a minimum of -28°C (-18°F), with an average of -8°C (17°F) and a maximum of 5°C (42°F), making it the coldest month of the year. The weather is also quite humid, with 90% humidity and significant precipitation totaling 170 mm (6.7 inches) across 17 days. In contrast, April brings a notable warming trend, with minimum temperatures around -17°C (2°F), an average of 1°C (34°F), and a maximum reaching 15°C (59°F). During this month, precipitation decreases to 89 mm (3.5 inches) over 11 days, and humidity levels drop slightly to 84%. For more detailed insights into April weather, check out Grachen weather in April.
December and May present strikingly different weather conditions. In December, temperatures can plunge as low as -28°C (-18°F), with an average of -8°C (17°F) and a maximum of 5°C (42°F). The month is characterized by high humidity at 90% and considerable precipitation, with around 170 mm (6.7 in) falling over 17 days. In contrast, May brings milder temperatures, ranging from a minimum of -13°C (9°F) to an average of 5°C (41°F) and a pleasantly warm maximum of 20°C (67°F). Although May experiences slightly less precipitation at 149 mm (5.9 in) over 20 days, the humidity is more moderate at 80%. For a glimpse into what to expect during this transition to summer, check out Grachen weather in May.
In December, temperatures can plunge to a frigid minimum of -28°C (-18°F), with an average of -8°C (17°F) and a maximum of 5°C (42°F). The month is characterized by high humidity at 90%, along with significant precipitation totaling 170 mm (6.7 in) over 17 days, creating a cold and often snowy atmosphere. In stark contrast, June welcomes warmer weather, with temperatures ranging from a minimum of -3°C (26°F) to a pleasant average of 11°C (51°F) and a maximum of 26°C (78°F). This month experiences lower precipitation at 130 mm (5.1 in) over the same number of days, along with a slightly lower humidity of 82%. The overall climate shift from December to June presents a dramatic transformation in both temperature and atmospheric conditions. For more details on what to expect in June, check out Grachen weather in June.
In December, the weather is significantly colder, with temperatures ranging from a frigid minimum of -28°C (-18°F) to a maximum of 5°C (42°F), averaging around -8°C (17°F). The month sees substantial precipitation of 170 mm (6.7 in) over 17 days, accompanied by high humidity levels of 90%. In contrast, July offers a much milder climate, with temperatures fluctuating between a minimum of 0°C (33°F) and a maximum of 25°C (76°F), averaging 13°C (55°F). This month has lower precipitation at 108 mm (4.2 in) across 16 days, with a slightly lower humidity at 83%. For more details about the July weather, you can refer to Grachen weather in July.
In December, the weather is characterized by frigid temperatures, with a minimum of -28°C (-18°F) and an average of -8°C (17°F), peaking at a maximum of 5°C (42°F). This month also sees significant precipitation, totaling 170 mm (6.7 in) over 17 days, coupled with high humidity levels around 90%. In contrast, August experiences milder conditions, where temperatures range from a minimum of 0°C (33°F) to a maximum of 24°C (76°F), with an average of 12°C (54°F). Precipitation in August is lower at 119 mm (4.7 in) over 16 days, and humidity is also more moderate at 80%. The stark contrast between the biting cold of December and the temperate warmth of August is notable, showcasing the diverse seasonal climate. For more insights on August weather, visit Grachen weather in August.
The contrast between December and September weather is quite striking. In December, temperatures plunge to a minimum of -28°C (-18°F), with an average of -8°C (17°F) and a maximum reaching just 5°C (42°F). The month sees considerable precipitation, totaling 170 mm (6.7 in) over about 17 days, and the humidity remains high at 90%. In stark contrast, September offers a much milder climate, with minimum temperatures around -6°C (22°F), an average temperature of 8°C (47°F), and maximums climbing to 21°C (70°F). Precipitation in September is relatively lower at 89 mm (3.5 in) over 13 days, with humidity also slightly less at 83%. This notable difference highlights the transition from the deep cold of winter to the gentle beginnings of autumn. For a closer look at the weather in September, you can visit Grachen weather in September.
In comparing the weather of December and October, December proves to be significantly colder, with temperatures ranging from a frigid -28°C (-18°F) to a maximum of only 5°C (42°F) and an average of -8°C (17°F). In contrast, October experiences milder temperatures, with a minimum of -8°C (18°F), an average of 4°C (39°F), and a maximum reaching 16°C (61°F). Although December sees slightly more precipitation at 170 mm (6.7 in) over 17 days compared to October's 148 mm (5.8 in) across 11 days, both months share a high humidity level of 90%. To explore more about October weather, visit Grachen weather in October.
In comparing the weather between November and December, we see a notable drop in temperatures in December, where the average hovers around -8°C (17°F), compared to -3°C (27°F) in November. December experiences slightly lower minimum temperatures, reaching as low as -28°C (-18°F), versus -23°C (-10°F) in November. Precipitation also rises significantly in December, totaling 170 mm (6.7 in) over 17 days, compared to 109 mm (4.3 in) across 15 days in November. Humidity levels remain relatively high in both months, with December at 90% and November at 88%. For more details about November weather, you can check Grachen weather in November.
December in Grächen presents a distinct transition into winter, characterized by crisp temperatures that often dip below freezing, setting it apart from milder months. With an average chill that can plummet to a brisk -8°C, residents and visitors alike experience the magic of snowy landscapes. The month also sees a significant increase in precipitation, resulting in approximately 17 days of snow, transforming the area into a winter wonderland. Coupled with high humidity, December's weather conditions create both a challenge and charm that enhances the festive atmosphere. For more insights on what to expect throughout the year, check out Grachen Climate.