Last updated: August 21, 2025
December in Bastogne, Belgium, presents a chilly embrace, with temperatures ranging from a brisk -5°C (22°F) at night to a comfortable 13°C (56°F) during the day. The month averages around 3°C (38°F), inviting visitors to bundle up against the winter chill. With 138 mm (5.4 in) of precipitation spread over 19 days, the atmosphere is often damp, heightened by a humidity level of 93% that adds to the cozy, festive feel of the season. Embrace the beauty of a winter landscape that captures the essence of Belgian charm during this evocative month.
In December, Bastogne, Belgium experiences a shift into the winter season, with temperatures ranging between a minimum of -5°C (22°F) and a maximum of 13°C (56°F). The average temperature hovers around 3°C (38°F), indicating a cooler environment compared to the milder fall months that precede it. This time of year showcases a steady decline in warmth as the region braces for winter, marking a noticeable drop from the November averages. December's chill is a gentle reminder of the winter ahead, where cozy layers and warm drinks become essential for enjoying the festive atmosphere of this charming town.
December in Bastogne, Belgium, stands out as the month with the highest precipitation, accumulating 138 mm (5.4 in) over 19 days of rainfall. This noteworthy spike contrasts with the milder months preceding it, where precipitation averages hovered around 80-90 mm. The increase in rainy days hints at the onset of winter weather, making December a particularly wet month compared to its autumn counterparts. While November recorded 74 mm (2.9 in) over 13 days, December's substantial rainfall not only signifies a shift in the season but also marks a notable uptick, emphasizing the need for cozy indoor activities amidst the winter chill in Bastogne.
In Bastogne, Belgium, December ushers in the year's highest levels of humidity at a notable 93%. This figure marks a slight increase from the 91% recorded in November, continuing the trend of elevated moisture during the winter months. Throughout the year, humidity in Bastogne displays a noticeable pattern: it peaks during the colder seasons, with January and February also showcasing high percentages at 91% and 90% respectively. As spring approaches, the humidity begins to taper off, reaching its lowest point in May at 81%. However, even during summer, the humidity remains relatively stable, hovering around 80-82%. This cyclical dance of humidity not only enhances the region's lush landscape but also adds a unique charm to the winter ambiance, especially in December.
In Bastogne, Belgium, the UV Index experiences a notable decline as winter approaches, with December recording a low UV Index of 1, making sun exposure relatively safe. This trend begins with January, where the Index retains a similar low score of 2, maintaining a burn time of 45 minutes. As spring unfolds, the Index rises steadily through the months, reaching a peak of 9 in June, indicating very high exposure risks. For the remaining summer months, it hovers around 8, before gradually decreasing into the autumn and winter seasons. Thus, as December rolls in, residents and visitors can look forward to safe outdoor activities under the low UV conditions. For more detailed information, check out Bastogne UV Index.
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In Bastogne, Belgium, December marks the transition into winter with a modest 109 hours of sunshine, reflecting a noticeable dip from the vibrant late autumn days. This decrease is part of a broader trend, where the year experiences its sunniest months in spring and early summer, peaking in June with 408 hours of radiant light. As the seasons shift, the hours gradually decline, emphasizing the stark contrast between the sun-drenched days of May and the muted light of December. The annual cycle showcases a gentle rhythm where sunshine surrenders to the cold embrace of winter, yet the glimmer of daylight still offers a brief respite in the colder months, encouraging the charm of Bastogne's cozy, festive atmosphere.
In December, Bastogne, Belgium sees a notable decrease in the likelihood of sunny weather, with only a 12% chance of sun gracing the sky. This trend is part of a gradual decline as the year progresses, with sunshine probabilities peaking in the spring months, particularly April (47%) and March (40%). As we move toward the winter chill, the sunny days dwindle, with November already recording an 18% chance. This reduction highlights the festive yet overcast nature of December in Bastogne, where holiday cheer thrives even in the absence of bright skies.
In Bastogne, Belgium, December marks the return of shorter days, with daylight lasting only 8 hours. This brevity in daylight is part of a gradual decline that begins in late summer. As we transition from June's peak of 16 hours, the days steadily shorten, dipping to 15 hours in July and to 14 hours in August. The trend continues into the fall, with daylight diminishing to 10 hours in October and down to 9 hours in November. Interestingly, as the year closes, December's daylight mirrors that of January, emphasizing a cyclical pattern in daylight hours. This rhythm not only signals the end of the year but also evokes the charm of winter evenings in this picturesque Belgian town.
In Bastogne, Belgium, December greets visitors with an average wind speed of 3.9 m/s (9 mph), a slight increase compared to the calmer month of November. As the year winds down, the winter chill begins to settle in, with winds that are generally more subdued than the spring peaks of 4.4 m/s (10 mph) in May. The wind speed trends reveal a gentle ebb and flow, with the calmest days occurring in June and September, while January and February hold steady at the highest speeds early in the year. Overall, December's breezy yet mild atmosphere invites a reflective pause, serving as a reminder of the shifting seasons in this historic town.
Weather in Bastogne varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bastogne, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January present notable differences in weather conditions. In December, temperatures range from a chilly -5°C (22°F) at night to a mild 13°C (56°F) during the day, with an average temperature of 3°C (38°F). The month experiences significant precipitation, totaling 138 mm (5.4 in) over 19 days, along with high humidity levels at 93%. In contrast, January tends to be colder, with nighttime temperatures dropping to -15°C (5°F) and a slightly lower average of 1°C (34°F), peaking at 11°C (52°F). Precipitation is also reduced to 89 mm (3.5 in) falling over 13 days, while humidity remains relatively high at 91%. For more detailed insights, check out Bastogne weather in January.
In December, the weather in Bastogne is characterized by mild temperatures that range from a minimum of -5°C (22°F) to a maximum of 13°C (56°F), with an average of 3°C (38°F). The month experiences significant precipitation, with 138 mm (5.4 in) falling over 19 days and a high humidity level of 93%. In contrast, February sees a drop in minimum temperatures to -12°C (10°F), but the maximum can reach up to 18°C (65°F), keeping the average temperature at around 3°C (37°F). Precipitation also decreases to 85 mm (3.4 in) over 13 days, along with a slightly lower humidity of 90%. For more detailed insights, you can check out Bastogne weather in February.
December and March present distinct weather profiles, each with its own unique characteristics. In December, temperatures typically range from a minimum of -5°C (22°F) to a maximum of 13°C (56°F), with an average around 3°C (38°F). The month is quite humid, averaging 93%, and experiences significant precipitation, totaling 138 mm (5.4 inches) over 19 rainy days.
In contrast, March displays a broader temperature range, with lows of -14°C (7°F) and highs reaching up to 21°C (69°F), resulting in an average of 5°C (41°F). Although March sees slightly less precipitation at 102 mm (4.0 inches) over 17 days, it is still a damp month, though humidity drops to 88%. For more details about March weather specifically, you can visit Bastogne weather in March.
December and April exhibit striking differences in weather patterns. In December, temperatures typically hover between -5°C (22°F) and a maximum of 13°C (56°F), with an average of 3°C (38°F). This month is characterized by high humidity at 93% and significant precipitation, totaling 138 mm (5.4 in) over 19 days. In contrast, April experiences milder temperatures ranging from a minimum of -4°C (25°F) to a pleasant maximum of 25°C (77°F), offering an average of 8°C (47°F). Precipitation drops to 49 mm (1.9 in) over just 11 days, and humidity is lower at 84%. For more detailed insights into April weather in Bastogne, you can visit Bastogne weather in April.
December and May offer contrasting weather experiences. In December, temperatures can drop as low as -5°C (22°F) and average around 3°C (38°F), with highs reaching 13°C (56°F). The month is marked by considerable precipitation, totaling 138 mm (5.4 in) over 19 days, accompanied by high humidity levels at 93%. In contrast, May presents a more temperate climate, with minimum temperatures around -1°C (30°F) and an average of 12°C (54°F), peaking at 29°C (84°F). Precipitation decreases to 89 mm (3.5 in) over 15 days, and humidity is lower at 81%. For a more detailed look at May's weather, visit Bastogne weather in May.
When comparing the weather in December and June, notable differences emerge in both temperature and precipitation. December experiences colder temperatures, with a minimum of -5°C (22°F) and an average of 3°C (38°F), while June sees a much warmer range, with minimums of 5°C (41°F) and an average of 16°C (62°F), peaking at a maximum of 31°C (88°F). Additionally, December is characterized by higher humidity levels at 93%, compared to June's 82%. Precipitation is also more significant in December, with 138 mm (5.4 in) over 19 days, whereas June has a total of 97 mm (3.8 in) over just 14 days. For a detailed look at the weather specifics, check Bastogne weather in June.
December and July present contrasting weather patterns in Bastogne. December experiences cold temperatures, with a minimum of -5°C (22°F) and an average of 3°C (38°F), while July enjoys a much warmer climate, showcasing a minimum of 6°C (43°F) and an average temperature of 17°C (63°F). Precipitation is more frequent in December, with 138 mm (5.4 in) spread over 19 days, compared to July’s 81 mm (3.2 in) over just 12 days. Additionally, December has a higher humidity level at 93%, while July's humidity is a relatively comfortable 82%. For more details on July's weather, visit Bastogne weather in July.
December and August present strikingly different weather patterns. In December, temperatures can plunge as low as -5°C (22°F), with an average of around 3°C (38°F) and a maximum of only 13°C (56°F). This chilly month also sees significant precipitation, averaging 138 mm (5.4 in) over 19 days, combined with high humidity levels at 93%. In contrast, August experiences a much milder climate, with temperatures ranging from a minimum of 4°C (40°F) to a comfortable average of 17°C (63°F) and highs reaching up to 33°C (92°F). The month typically sees lower precipitation at 82 mm (3.2 in) over 17 days, alongside a humidity level of 80%. For a closer look at August weather specifics, check out Bastogne weather in August.
December and September present contrasting weather patterns that reflect the shift from autumn to winter. In December, temperatures range from a chilly -5°C (22°F) at night to a mild 13°C (56°F) during the day, with an average of 3°C (38°F). The month is marked by significant precipitation, totaling 138 mm (5.4 in) over 19 days, and high humidity at 93%. In contrast, September enjoys much warmer conditions, with temperatures fluctuating between 2°C (35°F) and a hot 32°C (89°F), averaging around 14°C (57°F). This month sees less rainfall, with only 77 mm (3.0 in) across 10 days and a lower humidity level of 83%. For a detailed look at the climate in September, visit Bastogne weather in September.
In comparing the weather of December to that of October, it's evident that December brings significantly colder temperatures, with a minimum of -5°C (22°F) compared to October's minimum of 0°C (33°F). The average temperature in December hovers around 3°C (38°F), while October enjoys a milder average of 10°C (50°F). Additionally, December experiences more precipitation, totaling 138 mm (5.4 in) over 19 days, in contrast to October's 92 mm (3.6 in) over 13 days. Humidity levels are also higher in December at 93%, compared to October's 89%. For a more detailed look at October weather specifically, you can check Bastogne weather in October.
In comparing the weather between November and December, December tends to be cooler overall, with an average temperature of 3°C (38°F), compared to November's average of 5°C (41°F). Both months have the same minimum temperature of -5°C, but December features a lower maximum temperature of 13°C (56°F) versus November's 17°C (64°F). Additionally, December experiences significantly more precipitation, totaling 138 mm (5.4 in) over 19 days, while November has only 74 mm (2.9 in) over 13 days. The humidity levels are slightly higher in December at 93%, compared to November's 91%. For more detailed information, you can check Bastogne weather in November.
As December settles in Bastogne, the town experiences a marked shift in climate compared to other months. With temperatures dropping significantly, residents and visitors alike can expect chilly days, where the average feels much cooler than in autumn. Precipitation is frequent, wrapping the landscape in a blanket of moisture, contributing to the notable 93% humidity. December typically sees more days of rain than earlier months, with 19 days inviting a cozy, albeit damp, atmosphere. This season presents a unique charm, especially for those drawn to the winter wonderland it creates. To learn more about what to expect throughout the year in Bastogne, visit Bastogne Climate.