Last updated: February 26, 2025
In December, Aachen, Germany experiences a chilly climate, with temperatures ranging from a maximum of 15°C (59°F) to a minimum of -5°C (24°F), averaging around 5°C (41°F). This month is characterized by frequent precipitation, with 112 mm (4.4 in) of rain distributed over approximately 20 days, contributing to a high humidity level of 92%. Visitors can expect a moody atmosphere, ideal for cozy indoor activities or warming up with local delicacies while enjoying the festive spirit of the season.
In Aachen, Germany, December brings a crisp chill as temperatures typically hover between a minimum of -5°C (24°F) and a maximum of 15°C (59°F), with an average of 5°C (41°F). This month marks a transition into winter, characterized by cooler days compared to the milder late autumn months. The steady drop in temperatures from November's average of 7°C (44°F) is a clear indication that the region is embracing the colder season. While frosty mornings may greet residents, the afternoons tend to offer a refreshing retreat, warming up just enough for the festive spirit to thrive amid the beautiful holiday lights illuminating the city.
In December, Aachen experiences its wettest month of the year, with a substantial precipitation total of 112 mm (4.4 in), significantly higher than many other months. This increase in rainfall corresponds with 20 days of precipitation, making it a notably gloomy time for the city. The trend of escalating rainfall in the later months of the year culminates in December, contrasting sharply with the drier spring months like April, which sees only 40 mm (1.6 in) over just 10 days. As the year closes, Aachenians can expect an abundance of rain, setting the stage for the cold winter ahead.
In Aachen, Germany, December ushers in a notable spike in humidity, reaching 92%—the highest point of the year. This trend reflects a pattern where winter months are characterized by increased moisture, starting from 91% in November and maintaining high levels into the new year. The transition from the warmer months, which see a steady decline in humidity, culminates in this winter peak, emphasizing the dampness prevalent during these colder times. As the year draws to a close, residents experience a cozy yet humid atmosphere, contrasting sharply with the dryer summer months, where humidity lows dip to 71% in August.
In Aachen, Germany, the UV Index experiences a notable decline as winter approaches, with December recording a low UV Index of 1. This signifies minimal sun exposure risk and a burn time of approximately 45 minutes for fair-skinned individuals. Following the trend established earlier in the year, the UV levels drop from the more moderate readings of spring and summer, where values reached as high as 8 in June and July, indicating a heightened intensity requiring shorter exposure times. The transition to lower UV index readings in November and December reflects the seasonal reduction in sunlight, making it the perfect time to enjoy outdoor activities with less concern for sunburn. For more detailed insights into the UV patterns throughout the year, visit Aachen UV Index.
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As the year draws to a close, December in Aachen, Germany typically offers 133 hours of sunshine, reflecting a noticeable dip from the peak brightness of summer. This final month marks a significant contrast to the sun-drenched July, which basks in a glorious 408 hours of daylight. Interestingly, the light begins to wane substantially after the vibrant May and June, where sunshine peaks at 394 and 395 hours respectively, signaling the onset of winter. While December may not boast the sunniest days, it provides a serene and reflective atmosphere, inviting residents and visitors alike to embrace the cozy charm of the holiday season amidst the soft glow of winter light. As the sun sets earlier and the temperatures cool, Aachen's landscape transforms into a picturesque winter wonderland, making it a magical time for all.
In Aachen, Germany, the likelihood of encountering sunny weather in December takes a noticeable dip, with only a 14% chance of sunshine. This trend marks a stark contrast to the more optimistic prospects of earlier months, particularly March and April, where the chances of sunny days rise to 40% and 41%, respectively. As the year progresses towards winter, the opportunity for clear skies and sunlight diminishes, peaking in the late spring months and gradually declining to the colder season. Consequently, if you're planning a trip to Aachen in December, it's wise to brace for a rather overcast atmosphere, punctuated by rare bursts of winter sunlight.
December in Aachen, Germany, features a consistent daylight duration of 8 hours, mirroring the shorter days of November. As the year transitions through the seasons, daylight gradually increases from 8 hours in the winter months to a peak of 16 hours in June, creating a rhythmic pattern that follows the natural cycle of the sun. After reaching its zenith, daylight starts to wane again, with each month bringing a gentle decline as winter approaches. This trend highlights the significance of seasonal changes, with December embracing the quiet, reflective aspect of the year, inviting residents to find beauty in the stillness of longer nights.
As December arrives in Aachen, Germany, the winds pick up slightly, averaging 4.1 m/s (9 mph), highlighting a trend of increased gustiness compared to the quieter summer months. The wind speed tapers in June, reaching a low of 2.6 m/s (6 mph) before gradually rising again in the autumn and winter, with notable peaks in January, February, and October at 4.4 m/s (10 mph). This seasonal shift not only invigorates the crisp winter air but also sets the stage for a vibrant backdrop of festive gatherings and holiday cheer, a perfect complement to the enchanting charm of Aachen during this time of year.
The weather in Aachen 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 Aachen and find detailed weather information for every month.
December and January exhibit distinct yet somewhat similar weather patterns. December experiences a mild average temperature of 5°C (41°F), with a maximum reaching up to 15°C (59°F) and a minimum of -5°C (24°F). The month is characterized by higher precipitation, totaling 112 mm (4.4 in) across 20 days, and a humidity level of 92%. Conversely, January sees slightly colder temperatures with an average of 3°C (37°F), a maximum of 13°C (56°F), and a minimum of -8°C (17°F). Precipitation in January decreases to 79 mm (3.1 in) over 14 days, while humidity remains similar at 91%. For more detailed information on January weather, visit Aachen weather in January.
December and February exhibit notable differences in weather characteristics. In December, temperatures range from a minimum of -5°C (24°F) to a maximum of 15°C (59°F), with an average of 5°C (41°F). The month is characterized by higher precipitation, totaling 112 mm (4.4 in) over about 20 days, and a humidity level of 92%. In contrast, February tends to be colder, with minimum temperatures dropping to -10°C (14°F), but experiencing slightly warmer maximums reaching up to 21°C (69°F) and maintaining a similar average of 5°C (40°F). Precipitation in February is less, at 78 mm (3.1 in) over approximately 12 days, along with a slightly lower humidity of 90%. For more insights into February weather, check out Aachen weather in February.
In December, the weather tends to be quite chilly, with temperatures ranging from a minimum of -5°C (24°F) to an average of 5°C (41°F) and a maximum of 15°C (59°F). The month is marked by high humidity at 92% and significant precipitation, averaging 112 mm (4.4 in) over about 20 days. In contrast, March brings slightly milder temperatures, with minima reaching -10°C (14°F) and averages of 7°C (44°F), while highs can soar to 23°C (73°F). Precipitation in March is less frequent, with a total of 87 mm (3.4 in) across 15 days and lower humidity at 87%. For a closer look at the weather patterns, take a look at Aachen weather in March.
In December, temperatures can drop as low as -5°C (24°F), with an average high of around 5°C (41°F), making it a notably cold month. The weather is quite damp, with an average precipitation of 112 mm (4.4 in) spread over 20 days and high humidity levels of 92%. In contrast, April brings milder temperatures, ranging from a minimum of -3°C (26°F) to a comfortable maximum of 27°C (81°F) and an average of 9°C (49°F). Precipitation is significantly lower at 40 mm (1.6 in) over just 10 days, and the humidity also decreases to 84%. For a closer look at the conditions during this delightful spring month, visit Aachen weather in April.
In December, the weather is markedly colder, with temperatures ranging from a chilly -5°C (24°F) at night to a maximum of 15°C (59°F) during the day, resulting in an average of just 5°C (41°F). This month also sees significant precipitation, totaling 112 mm (4.4 in) over about 20 days, contributing to a high humidity level of 92%.
In contrast, May ushers in a more temperate climate, with nighttime lows of 0°C (32°F) and daytime highs reaching up to 31°C (89°F), leading to a pleasant average of 13°C (56°F). Rainfall is considerably less, amounting to 74 mm (2.9 in) over 13 days, and humidity drops to a more comfortable 77%. For a closer look at the details of May's climate, you can check Aachen weather in May.
December and June present striking contrasts in weather. In December, temperatures can dip as low as -5°C (24°F), with an average of 5°C (41°F) and a maximum of 15°C (59°F). This month experiences significant precipitation, totaling 112 mm (4.4 in) over about 20 days, coupled with high humidity at 92%. In contrast, June boasts milder temperatures, with a minimum of 7°C (44°F), an average of 18°C (64°F), and peaks reaching 33°C (92°F). The month sees less precipitation, amounting to 88 mm (3.4 in) over 12 days, and the humidity drops to a more comfortable 74%. For more detailed insights, check out Aachen weather in June.
December and July present a stark contrast in weather conditions. In December, temperatures range from a chilling -5°C (24°F) to a milder 15°C (59°F), with an average of 5°C (41°F). The month is characterized by high humidity at 92% and substantial precipitation, totaling 112 mm (4.4 inches) over about 20 days. In contrast, July boasts much warmer temperatures, with lows around 8°C (46°F) and highs soaring up to 40°C (104°F), averaging 19°C (66°F). This summer month experiences less rainfall, accumulating 94 mm (3.7 inches) across 13 days, and a more comfortable humidity level of 72%. For a closer look at the typical weather in July, visit Aachen weather in July.
The weather in December is notably colder and wetter compared to August. In December, temperatures range from a chilly -5°C (24°F) to a mild 15°C (59°F), with an average of 5°C (41°F), while August sees much warmer conditions with temperatures varying from 7°C (45°F) to a high of 35°C (96°F) and an average of 19°C (66°F). Additionally, December experiences higher humidity levels at 92% and more precipitation, totaling 112 mm (4.4 in) over 20 rainy days, whereas August has 78 mm (3.1 in) of rain spread across 16 days and lower humidity at 71%. For more detailed insights about August weather, visit Aachen weather in August.
In December, temperatures are noticeably cooler, with lows reaching -5°C (24°F) and an average temperature of 5°C (41°F), while September enjoys milder conditions with a minimum temperature of 2°C (36°F) and an average of 15°C (59°F). The maximum temperature in September can soar up to 32°C (91°F), making it significantly warmer than December, where highs only reach 15°C (59°F). Precipitation is more frequent in December, averaging 112 mm (4.4 in) over 20 days, compared to September's 64 mm (2.5 in) over 10 days. Additionally, December experiences higher humidity levels at 92%, compared to 81% in September. For more details on September weather, you can refer to Aachen weather in September.
When comparing the weather in December to that of October, a notable difference can be observed in both temperature and precipitation levels. December features colder temperatures with a minimum of -5°C (24°F) and an average of 5°C (41°F), while October enjoys milder conditions, with a minimum of 1°C (34°F) and an average of 11°C (53°F). In terms of precipitation, December sees more rain, totaling 112 mm (4.4 in) over 20 days, compared to October's 82 mm (3.2 in) spread across 14 days. Additionally, December experiences higher humidity at 92%, while October's humidity is slightly lower at 88%. For more detailed information about October weather, you can visit Aachen weather in October.
December weather tends to be cooler and wetter compared to November. While both months experience lows of -5°C (24°F), December has an average temperature of 5°C (41°F) compared to November's warmer average of 7°C (44°F). The maximum temperatures also drop slightly, with December peaking at 15°C (59°F) versus November's 18°C (66°F). Precipitation increases significantly in December, with 112 mm (4.4 in) expected over 20 days, while November sees only 59 mm (2.3 in) over 11 days. Despite similar humidity levels—92% in December and 91% in November—the weather in December is undoubtedly more pronounced in terms of rain. For a more detailed look at November's weather, you can visit Aachen weather in November.
As December rolls into Aachen, the weather presents a stark contrast to the milder months of autumn. With temperatures dipping to a chilly average of 5°C and the potential for nighttime lows reaching -5°C, it's a time when warm layers become essential. The city experiences significant rainfall, with about 20 days of precipitation, adding to the often gray and damp atmosphere. Humidity surges to 92%, enhancing the winter feel and sometimes creating a cozy, if rather gloomy, vibe. For those planning a visit, it's crucial to be prepared for the elements and embrace the unique charm of Aachen in wintertime. For more detailed insights, check out Aachen Climate.