Last updated: February 26, 2025
December in Ulm, Germany brings a chill that envelops the city, with maximum temperatures reaching only 13°C (56°F) while plunging to a brisk -9°C (16°F) during the night. The average temperature stands at a cool 2°C (35°F), giving a true sense of winter's embrace. This month witnesses 98 mm (3.9 in) of precipitation spread over 17 days, enhancing the season's atmospheric charm. With humidity levels soaring to 91%, December in Ulm is a blend of frosty air and frequent dampness, inviting visitors to experience the serene beauty of the season, amidst an enchanting winter landscape.
In Ulm, Germany, December marks the onset of winter, bringing a noticeable drop in temperatures that continues the trend established in the previous months. The average temperature hovers around 2°C (35°F), with a minimum dipping to -9°C (16°F) and a maximum reaching 13°C (56°F). This chilly month encapsulates the seasonal transition, where the crisp air becomes a defining feature of the landscape, setting the stage for festive celebrations. As the year draws to a close, Ulm experiences the stark beauty of cold with frosty mornings and cooler evenings, reminding residents and visitors alike of the serene charm of winter.
December in Ulm, Germany, marks a significant uptick in precipitation, with 98 mm (3.9 in) of rainfall across 17 days, making it one of the wetter months of the year. This sustained increase contrasts sharply with the drier November, which saw only 50 mm (2.0 in) over 10 days. As the year draws to a close, Ulm experiences more frequent rain showers, contributing to the month’s notable total. With the precipitation trend rising in December, it's clear that winter is fully embracing the region, preparing it for a chilly yet vibrant holiday season. This pattern emphasizes the shift from the moderate levels of earlier months and showcases the dynamic nature of Ulm's climate as it transitions into winter.
In Ulm, Germany, December brings a notable return of high humidity, hovering at 91%, similar to the peak levels experienced at the beginning of the year. The months leading up to December show a gradual decline in humidity from January's impressive 91% down to 79% in May. However, as the year closes, humidity levels rise again, indicating a trend where late autumn and winter sustain moisture levels in the air. From November's 89%, the sharp increase to December hints at a seasonal uptick, aligning with the colder temps and reduced evaporation, characteristic of this time of year. Overall, December's humidity reflects a cyclical pattern that emphasizes the climate variability of Ulm, where moist conditions are a prevalent feature throughout the winter months.
In December in Ulm, Germany, the UV Index falls into the low exposure category with a reading of 2, mirroring the conditions seen in both January and November. With a burn time of 45 minutes, it’s the perfect month to enjoy the winter scenery without the worry of sunburn. This marks a significant contrast to the peaks of UV exposure experienced during the summer months when indices soared to 9. As the seasons shift, December offers a welcome respite from the intensity of sunlight, making it an ideal time for more leisurely outdoor activities. For more detailed information, visit Ulm UV Index.
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As the year draws to a close in Ulm, Germany, December offers 161 hours of sunshine, reflecting a gentle decline from the vibrant summer months. The trend clearly reveals a gradual transition through the seasons, starting from a mere 139 hours in January, culminating in the sunniest month of July with 414 hours. As autumn arrives, sunshine hours begin to dwindle, dipping to 209 hours in November. December's shorter days and cooler temperatures signal the onset of winter, yet even within this shift, the residual glow of daylight remains a cherished aspect of the season. The consistent annual pattern highlights the unique charm of Ulm's climate, where each month tells a story of transitions and transformations.
As winter sets in, the likelihood of experiencing sunny weather in Ulm, Germany, sharply declines. With only a 15% chance of sunshine in December, the month falls among the least bright, especially when compared to the earlier months of the year. This trend becomes more pronounced as temperatures drop, following November's dismal 18% and preceding the sparse sunshine of January at 11%. In contrast, spring begins to offer a glimmer of hope for those seeking clearer skies, with chances rising significantly—March and April boast 40% and 42%, respectively. As we witness this seasonal shift, it’s clear that December is a time when sunshine is a rare commodity in Ulm, hinting at cozy indoor moments rather than bright outdoor adventures.
In Ulm, Germany, the daylight duration dances through the seasons, revealing an intriguing rhythm. As winter approaches, December settles in with just 8 hours of daylight, mirroring the early days of January. The shortened days serve as a stark contrast to the vibrant longer days of summer where daylight peaks at 16 hours in June. Spring begins to awaken the light in March, granting 11 hours, while daylight extends further to 15 hours in May, embracing the warmth of early summer. The gradual decline in daylight begins in July, showcasing 15 hours, and continues through the autumn months, tapering down to 9 hours in November. This annual cycle highlights how our relationship with daylight evolves, inviting reflections on the changing seasons and their impact on daily life.
As December settles over Ulm, Germany, the average wind speed picks up to 3.2 m/s (7 mph), a noticeable increase from the calmer autumn months. This rise signals a transition from the hushed breezes of earlier months, such as 2.5 m/s in November, to the invigorating winds that often accompany the chill of winter. Interestingly, while December's winds are stronger than those in the previous month, they still remain below the peaks of late spring and early summer. May, for instance, boasts the highest average at 3.6 m/s (8 mph), providing a stark contrast to the subdued gusts found in the summer months of June and July. Overall, December's winds offer a refreshing reminder of the changing seasons, bridging the gap between the gentler breezes of fall and the brisk air that characterizes the colder months ahead.
The weather in Ulm changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Ulm and find detailed weather information for every month.
December and January share similar temperature ranges, but January tends to be a bit colder, with minimum temperatures dropping to -15°C (5°F) compared to December's -9°C (16°F). While both months have an average maximum temperature of 13°C (56°F), January's overall average is slightly lower at 0°C (33°F). Additionally, January experiences less precipitation at 67 mm (2.6 in) over 11 days, compared to December's 98 mm (3.9 in) over 17 days, yet both months maintain a high humidity level of 91%. For more specific details, you can check Ulm weather in January.
December and February present contrasting yet similar weather patterns. In December, temperatures typically range from a minimum of -9°C (16°F) to a maximum of 13°C (56°F), with an average temperature of 2°C (35°F). The month sees considerable precipitation of 98 mm (3.9 in) over 17 days and high humidity at 91%. In contrast, February experiences colder minimum temperatures, dipping to -18°C (-1°F), while maximum temperatures can rise to 18°C (65°F). The average temperature remains consistent at around 2°C (37°F), but with less precipitation at 66 mm (2.6 in) spread across 11 days and slightly lower humidity at 89%. For a more detailed look into February's weather, visit Ulm weather in February.
December and March present distinct weather patterns. In December, temperatures range from a chilly -9°C (16°F) to a milder max of 13°C (56°F), with an average of 2°C (35°F). The month sees significant precipitation, with 98 mm (3.9 in) spread across 17 days, accompanied by high humidity levels at 91%. In contrast, March experiences a wider temperature range, with a minimum of -16°C (3°F) and a maximum of 21°C (70°F), yielding an average temperature of 5°C (41°F). Precipitation decreases to 68 mm (2.7 in) over 13 days, and humidity is slightly lower at 87%. For a deeper dive into the specifics of March weather, visit Ulm weather in March.
December weather features colder temperatures, with a minimum reaching as low as -9°C (16°F) and an average of just 2°C (35°F), resulting in a chilly atmosphere. The month also sees significant precipitation, totaling 98 mm (3.9 in) over 17 days, and high humidity at 91%. In contrast, April offers a noticeable warming trend, with minimum temperatures of -6°C (21°F) and an average of 9°C (48°F), peaking at a comfortable 26°C (79°F). This month experiences less precipitation, only 42 mm (1.7 in) over 9 days, and lower humidity at 83%. For more details on the weather in April, visit Ulm weather in April.
In December, the weather is quite chilly, with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 13°C (56°F) and an average of just 2°C (35°F). This month experiences significant precipitation, totaling 98 mm (3.9 in) over 17 days, accompanied by high humidity at 91%. In contrast, May brings a milder climate, with temperatures ranging from -2°C (29°F) to a much warmer 29°C (85°F) and an average of 12°C (54°F). Although May sees a slightly higher total precipitation of 106 mm (4.2 in) spread over 16 days, the humidity is lower at 79%, contributing to a more pleasant outdoor experience. For more details about May's weather, you can visit Ulm weather in May.
December and June present contrasting weather conditions in Ulm, with December showcasing colder temperatures that range from a minimum of -9°C (16°F) to a maximum of 13°C (56°F) and an average of 2°C (35°F). The month experiences significant precipitation of 98 mm (3.9 in) spread over 17 days, coupled with high humidity levels at 91%. In stark contrast, June warms up considerably, featuring minimum temperatures of 5°C (41°F) and soaring to highs of 33°C (92°F), with an average of 17°C (64°F). Although June has slightly higher precipitation at 124 mm (4.9 in), it only falls over 14 days, and the humidity is lower at 82%. For more detailed insights, you can check Ulm weather in June.
In December, the weather is notably colder with temperatures ranging from a chilling -9°C (16°F) at minimum to a mild 13°C (56°F) at maximum. The month also experiences significant precipitation, averaging 98 mm (3.9 inches) over 17 days, combined with high humidity levels at 91%. In contrast, July boasts much warmer conditions, with temperatures typically between 6°C (44°F) and 34°C (94°F) and an average of 18°C (65°F). The precipitation in July is slightly less, with 89 mm (3.5 inches) falling over 13 days and humidity at a lower 83%. This stark contrast highlights the seasonal shift from a cold, damp winter to a warm, summer climate. For more details about Ulm's weather in July, check out Ulm weather in July.
The weather in December is significantly colder than in August, with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 13°C (56°F), averaging around 2°C (35°F). In contrast, August sees much milder temperatures, with a minimum of 6°C (44°F) and a maximum of 32°C (90°F), resulting in an average of 18°C (65°F). December experiences higher humidity at 91% and more frequent precipitation, averaging 98 mm (3.9 in) over 17 days, whereas August has slightly less precipitation at 107 mm (4.2 in) over 14 days, accompanied by lower humidity of 84%. For more details, you can check out Ulm weather in August.
December and September present contrasting weather patterns. In December, temperatures plunge with a minimum of -9°C (16°F) and an average of around 2°C (35°F), while maxing out at 13°C (56°F). This month also experiences significant precipitation, totaling 98 mm (3.9 in) over 17 days, accompanied by high humidity levels of 91%. In stark contrast, September enjoys milder temperatures, beginning at a minimum of 1°C (35°F), with an average of 14°C (58°F) and peaking at a warm 28°C (83°F). The precipitation in September is lower, with 64 mm (2.5 in) spread across only 12 days, and humidity slightly less at 85%. For more details, you can check Ulm weather in September.
December weather is marked by significantly colder temperatures, ranging from a minimum of -9°C (16°F) to a maximum of 13°C (56°F), with an average of just 2°C (35°F). In contrast, October enjoys milder conditions, with temperatures spanning from a low of -1°C (31°F) to a high of 23°C (74°F) and an average of 10°C (50°F). Additionally, December sees more precipitation, totaling 98 mm (3.9 in) over 17 days, compared to October's 67 mm (2.6 in) spread over 12 days. Humidity is also slightly higher in December at 91%, versus October’s 88%. For more detailed information, you can check Ulm weather in October.
December weather features colder temperatures compared to November, with minimums dropping to -9°C (16°F) and an average temperature of 2°C (35°F), whereas November sees milder conditions with a minimum of -4°C (25°F) and an average of 4°C (39°F). Additionally, December experiences significantly more precipitation, totaling 98 mm (3.9 in) over 17 days compared to November's 50 mm (2.0 in) across just 10 days. Humidity levels also rise slightly from 89% in November to 91% in December. For a detailed look at what you can expect during November, you can check Ulm weather in November.
As December settles over Ulm, the weather takes on a distinctly chillier character compared to the milder months preceding it. The average temperature drops significantly, and the embrace of colder nights makes the winter ambiance palpable. With precipitation occurring on 17 days throughout the month, the air hangs heavy with humidity, enhancing the feel of winter's arrival. While maximum temperatures gently flirt with the double digits, the biting cold at night can dip well below freezing, reminding residents and visitors alike that December is a true winter month. For a deeper dive into seasonal shifts and weather patterns, explore the Ulm Climate.