Last updated: August 27, 2025
December in Winterthur, Switzerland brings a chilly charm as temperatures vary from a maximum of 14°C (57°F) to a frosty minimum of -8°C (19°F), with an average hovering around 3°C (37°F). This month also sees significant precipitation, with 121 mm (4.8 in) falling over approximately 18 days, contributing to the wintry landscape. With a high humidity level of 90%, the air feels crisp and invigorating, making it an ideal time to embrace the season's festive spirit amidst the picturesque backdrop of Winterthur.
As December envelops Winterthur in a wintry embrace, the temperatures reflect a notable chill, with minimums dropping to -8°C (19°F). The month averages around 3°C (37°F), providing a brisk backdrop for seasonal festivities. Although the maximum temperatures reach up to 14°C (57°F), giving brief glimpses of milder weather, December marks a transition towards the heart of winter. Compared to the preceding months, there's a noticeable dip in temperature, hinting at the cold that lays ahead in January and February. This blend of frosty mornings and relatively warmer afternoons creates a unique charm, perfect for enjoying the holiday spirit while bundled up in cozy attire.
In December, Winterthur, Switzerland experiences a notable uptick in precipitation, receiving around 121 mm (4.8 in) over 18 days. This marks a significant increase compared to the drier months preceding it, particularly November, which saw only 62 mm (2.5 in) across 11 days. The trend suggests that as winter sets in, the city is enveloped in a cloak of moisture, making December one of the wetter months of the year. Notably, this month's precipitation aligns closely with the spring and early summer totals, hinting at a seasonal shift towards more consistent rainfall. As the year closes, Winterthur transforms into a moody landscape, often shrouded in mist and rain, inviting residents and visitors alike to embrace the beauty of its winter ambiance.
In Winterthur, Switzerland, December marks the onset of winter with a noticeable rise in humidity, reaching 90%. This level mirrors the high humidity of January, suggesting a consistent pattern during the cold months. As the year transitions from autumn to winter, the humidity gradually increases, peaking in December before slightly dipping in the following months. The data reveals a trend where humidity remains elevated throughout the winter season, emphasizing Winterthur’s damp climate during this time. Notably, the months of October and November also display high humidity levels, at 90% and 88% respectively, creating a cozy yet brisk atmosphere as the year closes.
In December, Winterthur sees a significant drop in the UV Index, registering at an all-time low of 1, which corresponds to a low exposure category. This means that the risk of harm from unprotected sun exposure is minimal, allowing for safe outdoor activities without much concern. Throughout the year, the UV Index climbs to its peak in the summer months of June and July, where it reaches a striking 9, indicating a very high level of exposure and necessitating greater protective measures like sunscreen or hats. The fall and winter months, particularly from November to February, show a gradual decrease in UV radiation, making December the most benign month. For those interested in comprehensive UV data year-round, check out Winterthur UV Index.
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Despite the chill of winter, December in Winterthur, Switzerland, offers a charming slice of sunshine with approximately 165 hours of daylight. While this is a dip compared to the vibrant 379 hours basked in during the peak of summer in July, there remains a cozy glow that brightens the shorter days. As the calendar flips from the long, sun-drenched days of summer to the more subdued light of winter, December still holds a notable advantage over January, which records a mere 147 hours. This gradual tapering of daylight reveals a trend: as the year progresses into spring, the sun makes a steady comeback, with March already boasting 286 hours. Thus, December, with its gentle balance of sunlight, serves as a serene transition, hinting at the brighter days that are just around the corner.
When it comes to December in Winterthur, Switzerland, the likelihood of sunny weather experiences a chilly dip. With a mere 27% chance of sunshine, this month stands out as one of the cloudier periods of the year. Observing the trends, December's sun probability is lower than those in the preceding months of autumn, such as October and November, which hover around 37% and 24% respectively. Notably, as we transition from the vibrant sunniness of spring, where chances peak at nearly 50% in April, winter's encroachment brings shorter days and a more overcast sky. Thus, while the festive season can bring joy, one might want to prepare for a fair amount of gray along with the holiday spirit.
In Winterthur, Switzerland, December marks a return to a brisk 8 hours of daylight, mirroring the shorter days of January. As the year unfolds, a clear trend emerges: daylight gradually increases from winter's depths in December and January to reach a peak of 15 hours in the vibrant summer months of June and July. Following this summer zenith, daylight begins to taper off, with August still enjoying a generous 14 hours before September sees a decline to 12 hours. The autumn months of October and November experience further reductions, landing us back at 8 hours by the time we welcome December again. This rhythmic shift not only defines the seasons but adds a dynamic beauty to the year, shaping the experiences of those living in this picturesque Swiss locale.
In December, Winterthur experiences a gentle breeze with an average wind speed of 2.3 m/s (5 mph), lending a crispness to the winter air. The wind begins to pick up from the calmer summer months, where speeds hovered around 1.8 to 1.9 m/s (4 mph) from June to August. As autumn transitions into winter, there's a subtle uptick in wind velocity, showing a gradual increase as the year wraps up. This pleasant December wind is a stark contrast to the brisk January gusts that follow, where conditions remain notably still at 2.5 m/s (6 mph). Overall, the consistent trends reflect Winterthur’s unique climatic shifts, capturing the essence of winter while echoing the seasonal transitions of the year.
Weather in Winterthur varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Winterthur, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather tends to be milder, with average temperatures around 3°C (37°F) and maximums reaching 14°C (57°F), while January sees a slight drop in temperatures, averaging 1°C (34°F) with maximums of 15°C (60°F). December experiences higher precipitation levels, totaling 121 mm (4.8 inches) over approximately 18 days, compared to January's 97 mm (3.8 inches) across 11 days. Humidity remains slightly higher in January at 92%, compared to 90% in December, contributing to the chill in the air. For more details on the January weather in this region, check out Winterthur weather in January.
December's weather is characterized by a more moderate average temperature of around 3°C (37°F), with lows dipping to -8°C (19°F) and highs reaching up to 14°C (57°F). The month sees considerable precipitation, measuring 121 mm (4.8 in) over 18 days, accompanied by a high humidity level of 90%. In contrast, February experiences slightly lower temperatures, with a minimum of -12°C (10°F) and a higher maximum of 18°C (65°F) while maintaining the same average temperature of 3°C (38°F). Precipitation also decreases to 75 mm (3.0 in) over 12 days, resulting in a marginally lower humidity of 89%. For more detailed information, see Winterthur weather in February.
In December, temperatures range from a chilly minimum of -8°C (19°F) to a mild average of 3°C (37°F), peaking at a maximum of 14°C (57°F). The month sees significant precipitation, totaling 121 mm (4.8 in) over 18 days, combined with high humidity levels of around 90%. In contrast, March experiences slightly colder conditions at a minimum of -12°C (11°F) and a higher average of 6°C (43°F), reaching a maximum of 20°C (69°F). Precipitation decreases to 86 mm (3.4 in) over 14 days, with humidity levels slightly lower at 87%. For more detailed insights into March weather, you can visit Winterthur weather in March.
December and April present contrasting weather conditions, marking the transition from winter to spring. In December, temperatures can drop as low as -8°C (19°F), with an average of 3°C (37°F) and highs reaching 14°C (57°F). This colder month experiences substantial precipitation, totaling 121 mm (4.8 in) over approximately 18 days, accompanied by high humidity at 90%. In contrast, April sees milder temperatures with a minimum of -4°C (25°F) and an average of 10°C (50°F), peaking at 26°C (79°F). Precipitation decreases significantly to 63 mm (2.5 in), occurring on just 9 days and with humidity at a relatively lower 84%. For more insights into April weather trends, you can check out Winterthur weather in April.
In December, temperatures in Winterthur can dip as low as -8°C (19°F) and typically average around 3°C (37°F), creating a chilly atmosphere. The month experiences notable precipitation, with around 121 mm (4.8 in) falling over 18 days, paired with high humidity levels of 90%, contributing to a damp and wintry feel. In contrast, May brings a significant warm-up, with temperatures ranging from a minimum of -2°C (28°F) to a pleasant maximum of 30°C (87°F) and an average of 13°C (56°F). Precipitation in May is fairly similar, at 123 mm (4.9 in) over 17 days, but the humidity drops to 80%, allowing for a fresher and more vibrant spring atmosphere. For more details on the pleasant conditions in May, you can check Winterthur weather in May.
December and June present contrasting weather conditions. In December, temperatures range from a chilly -8°C (19°F) to a milder 14°C (57°F), with an average of around 3°C (37°F). The month experiences significant precipitation, totaling 121 mm (4.8 in) over 18 days, and high humidity levels at 90%. In stark contrast, June boasts warmer temperatures, with a minimum of 5°C (42°F) and a maximum of 33°C (92°F), averaging 18°C (65°F). Although June has slightly higher total precipitation at 138 mm (5.4 in), it falls over fewer days—just 14—resulting in a lower humidity level of 82%. For more specific details about the climate during this month, you can visit Winterthur weather in June.
In December, the weather is characterized by colder temperatures, with lows reaching -8°C (19°F) and averages hovering around 3°C (37°F). In contrast, July boasts much warmer conditions, featuring a minimum of 8°C (47°F) and an average of 20°C (68°F), with highs that can soar up to 36°C (96°F). December experiences more significant precipitation, with 121 mm (4.8 in) falling over 18 days and a high humidity level of 90%. Conversely, July sees less rain, totaling 92 mm (3.6 in) across 14 days, accompanied by a lower humidity level of 83%. For a more detailed look at the summer conditions, check out Winterthur weather in July.
December and August present stark contrasts in weather. In December, temperatures can plummet to a minimum of -8°C (19°F), with an average of 3°C (37°F) and a high of 14°C (57°F), creating a cold and frosty environment. The month experiences significant precipitation, totaling 121 mm (4.8 in) over about 18 days, coupled with high humidity levels reaching 90%. In contrast, August is much warmer, with temperatures ranging from a low of 8°C (46°F) to a comfortable average of 19°C (67°F), peaking at 35°C (95°F). The precipitation during August is slightly lower, at 114 mm (4.5 in) over around 12 days, and the humidity is more moderate at 80%. For more details on August weather, you can explore Winterthur weather in August.
In comparing the weather between December and September, it's clear that December is much colder, with temperatures ranging from a minimum of -8°C (19°F) to a maximum of 14°C (57°F), while September enjoys milder temperatures from 3°C (38°F) to 29°C (84°F). Additionally, December experiences significantly more precipitation at 121 mm (4.8 in) over 18 days, compared to September's 84 mm (3.3 in) across 11 days. The humidity levels are also higher in December, averaging 90%, compared to 83% in September. For more details on September weather, you can visit Winterthur weather in September.
In comparing the weather of December and October, we observe notable differences in temperature and precipitation. December experiences colder temperatures, with a minimum of -8°C (19°F) and an average of 3°C (37°F), while October has milder conditions, with a minimum of -1°C (31°F) and an average of 10°C (51°F). Additionally, October boasts warmer maximum temperatures, reaching up to 23°C (73°F), compared to December's maximum of 14°C (57°F). Precipitation in December is higher, totaling 121 mm (4.8 in) over 18 days, compared to October's 94 mm (3.7 in) over 12 days. Despite both months sharing similar humidity levels at 90%, December's chill and increased rainfall contrast sharply with October's more temperate climate. For more details about the weather specifics in October, you can refer to Winterthur weather in October.
In comparing the weather between November and December, we see a notable shift in temperatures and precipitation patterns. December experiences colder temperatures, with a minimum of -8°C (19°F) compared to November’s milder minimum of -3°C (26°F). The average temperature in December is slightly lower at 3°C (37°F), while November boasts an average of 5°C (41°F). Additionally, December is characterized by increased precipitation, totaling 121 mm (4.8 in) over 18 days, compared to November's 62 mm (2.5 in) across only 11 days. The humidity also rises slightly in December to 90%, compared to November's 88%. For more insights into November's weather, visit Winterthur weather in November.
As December settles in Winterthur, the weather transforms dramatically from the milder conditions of previous months. With a notable drop in temperatures, the charm of winter envelops the city, bringing an average chill that can dip to frosty lows. This month is characterized by higher humidity levels and frequent precipitation, resulting in a much wetter atmosphere and adding to the enchanting yet brisk feel of the season. The landscape becomes a wintry wonderland, making December a unique time to experience Winterthur’s serene beauty. For those curious about how this month compares with the rest of the year, you can delve deeper into the specifics by visiting the comprehensive guide on Winterthur Climate.