December Weather in Saint-Gilles, Belgium

Last updated: August 21, 2025

Saint-Gilles, Belgium, in December experiences a chilly ambiance with temperatures swinging from a maximum of 15°C (59°F) to a minimum of -5°C (24°F). The month averages around 5°C (42°F), providing a crisp environment ideal for cozy winter activities. Rain is frequent, with 93 mm (3.7 in) of precipitation spread over 17 days, contributing to the region's high humidity level of 92%. Visitors can expect a blend of wet and chilly days, perfect for enjoying the festive spirit while wrapped in warm attire.

December Temperature in Saint-Gilles

In December, Saint-Gilles, Belgium begins to embrace the chill of winter, with temperatures reflecting a gradual descent from the milder months. The average temperature settles around 5°C (42°F), marking a significant drop from the previous months. Nighttime often dips to -5°C (24°F), while daytime temperatures can reach a maximum of 15°C (59°F), providing a mixed bag of chilly yet bearable days. This month signifies a transition, as the crisp air heralds the festive spirit of winter, making way for cozy gatherings and the enchanting charm of the holiday season. As temperatures glide downward, the shift in atmosphere invites both locals and visitors to wrap up warmly and explore the delightful winter landscapes of this quaint Belgian town.

December Weather in Saint-Gilles: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Saint-Gilles, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Gilles, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec394245505664666660544542
Data source: Temperature data for Saint-Gilles generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Saint-Gilles

In Saint-Gilles, Belgium, December is marked by a significant uptick in precipitation, with 93 mm (3.7 in) of rain recorded over the month, making it one of the wettest periods of the year. This increase corresponds with 17 rainy days, the highest number of any month, suggesting that the holiday season often comes with a drizzle. The pattern of increased precipitation is evident as the year closes, with December surpassing the rainfall amounts of the preceding months, creating a contrast to the relatively drier spells of April and September. This trend emphasizes the transition into winter, where the weather becomes more unpredictable and wetter, setting a backdrop of gray skies that accompany the festive atmosphere.

December Precipitation Trends in Saint-Gilles

The chart displays monthly precipitation patterns in Saint-Gilles, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Saint-Gilles, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec656971375866718055765793
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Saint-Gilles

In Saint-Gilles, Belgium, December marks a peak in humidity, reaching 92%, which mirrors the slightly elevated levels seen in both October and November. As the year progresses from the relatively dry summer months, where humidity dips to 76% in August, there’s a noticeable trend of increasing moisture as fall settles in. This late-year spike in humidity suggests a transition to the wetter winter season, echoing the year’s overall pattern of gradually rising humidity levels after mid-year. December's dampness ties seamlessly into the cold embrace of winter, making it a characteristic feature of the local climate during this time.

December Average Humidity in Saint-Gilles

This chart illustrates the average monthly humidity levels in Saint-Gilles, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Saint-Gilles is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Saint-Gilles

In December, Saint-Gilles, Belgium, experiences a low UV Index of 1, indicating minimal sun exposure risk. With a burn time of 45 minutes, this month marks a return to the lower end of the UV spectrum, a trend consistent since November. As we move through the year, UV levels typically peak in the summer months of June and July with a very high index of 8, showcasing a stark contrast to the winter months. This seasonal fluctuation reminds us to remain vigilant about sun protection as the UV index rises in the warmer months, while in December, the risk remains minimal. For more insights, visit Saint-Gilles UV Index.

Maximum UV Index Levels in Saint-Gilles for December

The chart shows the monthly maximum UV Index (UVI) for Saint-Gilles in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Saint-Gilles typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Saint-Gilles December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Saint-Gilles

In Saint-Gilles, Belgium, December wraps up the year with a modest 143 hours of sunshine. This marks a notable dip compared to the vibrant 406 hours basked in during the peak of July, illustrating the seasonal shift towards shorter days. While December's sunshine may feel limited, it serves as a gentle reminder of nature's rhythm, nestled between the colder months of November and January, which boast 190 hours and 121 hours respectively. Although the month is a far cry from the sun-drenched days of spring and summer — with May and June showing 394 and 398 hours— it still offers a glimmer of warmth and light during the darkest part of the year. As the sunshine begins its gradual return in the upcoming months, December stands as a reflective pause amid the seasonal transitions.

Monthly Sunshine Duration in Saint-Gilles: December Highlighted

The December sunshine duration represents the total number of hours Saint-Gilles experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec121h200h266h346h394h398h406h379h319h240h190h143h
Data source: Saint-Gilles December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Saint-Gilles During December

In Saint-Gilles, Belgium, December brings a notable dip in sunny weather, with only a 15% chance of sunshine, making it one of the cloudiest months of the year. This decline follows a gradual upward trend in sunshine likelihood from January's mere 11% to April's peak of 50%. While May through October enjoy a healthier share of sun, the approach of winter signals a stark reversal, as November already drops to a 24% chance. Consequently, December's limited sunlight hints at the darker, chillier days ahead, inviting cozy indoor activities rather than outdoor adventures.

Percentage of Sunny Days in December in Saint-Gilles

The chart illustrates the percentage of sunny days in Saint-Gilles throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Saint-Gilles experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec11%30%40%50%33%34%34%29%36%32%24%16%
Data source: Saint-Gilles December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Saint-Gilles in December

In Saint-Gilles, Belgium, the daylight duration experiences a captivating seasonal rhythm throughout the year. Beginning with a modest 8 hours in January and November, the days gradually stretch into vibrant 15 hours by May, peaking at a luscious 16 hours in June, the height of summer. As the year progresses, daylight begins to wane, dipping back to 14 hours in August and receding to 11 hours by March. This gradual decline leads to the shortest days again in December, where sunlight lingers for another 8 hours, mirroring the beginning of the year. This cycle highlights the enchanting ebb and flow of daylight, inviting residents to relish both the extended sunlit days of summer and the cozy, twilit evenings of winter.

Average Daylight Hours in Saint-Gilles for December

The chart illustrates the variation in daylight duration in Saint-Gilles throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 31m10h 2m11h 55m13h 50m15h 31m16h 23m15h 55m14h 25m12h 34m10h 39m8h 56m8h 2m
Data source: Saint-Gilles daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Saint-Gilles

In Saint-Gilles, Belgium, the winds of December carry an average speed of 4.2 m/s (9 mph), marking a slight increase from the calmer summer months. Overall, wind conditions tend to fluctuate throughout the year, with the strongest gusts recorded in early and late fall, particularly January and October, which both reach up to 10 mph. As the seasons shift, spring experiences a dip, particularly in April, when average wind speeds drop to their lowest at 3.4 m/s (8 mph). Interestingly, winter months, such as December, offer a refreshing balance, providing a brisk atmosphere that contrasts with the lighter breezes of July and September. This seasonal wind pattern enhances the charm of Saint-Gilles, creating a dynamic backdrop for the festive atmosphere in December.

Average December Wind Speed in Saint-Gilles

The chart displays monthly wind speed patterns in Saint-Gilles, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.44.64.03.44.42.83.33.43.04.33.34.2 m/s
Data source: Saint-Gilles December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Saint-Gilles Compares to Other Months

Weather in Saint-Gilles varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Saint-Gilles, focusing on differences in temperature, rainfall, humidity, and UV levels.

In December, temperatures tend to be slightly milder, with averages around 5°C (42°F), while January experiences a drop to an average of 4°C (39°F). December sees temperatures ranging from a minimum of -5°C (24°F) to a maximum of 15°C (59°F), compared to January's range of -7°C (20°F) to 14°C (57°F). Additionally, December is wetter, with 93 mm (3.7 in) of precipitation over 17 days, while January has less rainfall at 65 mm (2.5 in) across 12 days. Humidity remains relatively high in both months, with December at 92% and January slightly lower at 91%. For more details on January weather, you can visit Saint-Gilles weather in January.

December and February present notable differences in weather, despite both months having an average temperature of around 5°C (42°F). December sees slightly milder conditions with maximum temperatures reaching up to 15°C (59°F), while February can peak at 19°C (66°F). However, February often experiences colder minimum temperatures, dropping to -8°C (17°F) compared to December's -5°C (24°F). Precipitation decreases in February to 69 mm (2.7 in) over 12 days, while December is wetter with 93 mm (3.7 in) across 17 days. Humidity is also marginally lower in February at 89%, compared to December's 92%. For more specific weather insights, you can check Saint-Gilles weather in February.

December and March present contrasting weather patterns, with December typically featuring colder temperatures as the winter season progresses. In December, the average temperature hovers around 5°C (42°F), with minimums dipping to -5°C (24°F) and maximums reaching 15°C (59°F). The month experiences considerable humidity at 92% and receives about 93 mm (3.7 in) of precipitation over 17 days. In contrast, March marks the transition to spring, where temperatures begin to rise with an average of 7°C (45°F), minimums of -8°C (17°F), and maximums soaring up to 23°C (74°F). Precipitation decreases to 70 mm (2.8 in) over 14 days, and humidity is slightly lower at 87%. This makes March feel markedly more moderate and pleasant compared to the chill of December. For more detailed information, you can check Saint-Gilles weather in March.

In December, weather conditions are notably colder, with minimum temperatures dropping to -5°C (24°F) and an average of just 5°C (42°F), occasionally reaching a maximum of 15°C (59°F). The month also sees substantial precipitation, totaling 93 mm (3.7 in) over 17 days, and high humidity levels at 92%. In contrast, April experiences a more temperate climate, with minimum temperatures around -4°C (26°F) and rising to an average of 10°C (50°F), peaking at 27°C (80°F). Precipitation decreases significantly to 37 mm (1.5 in) across only 8 days, coupled with a slightly lower humidity rate of 85%. For more details on April weather, you can visit Saint-Gilles weather in April.

When comparing December and May weather, the differences are quite pronounced. December experiences a colder climate, with temperatures ranging from a chilling minimum of -5°C (24°F) to a milder average of 5°C (42°F) and a maximum of 15°C (59°F). It also sees significant precipitation, totaling 93 mm (3.7 in) over 17 days, along with a high humidity level of 92%. In contrast, May boasts warmer temperatures, with a minimum of 1°C (33°F) and an average of 13°C (57°F), reaching up to a balmy 31°C (88°F) at its peak. Precipitation decreases to 58 mm (2.3 in) spread over 12 days, and humidity levels drop slightly to 82%. For a closer look at weather conditions specific to this month, you can explore Saint-Gilles weather in May.

December and June present striking contrasts in weather. In December, temperatures can drop to a chilly minimum of -5°C (24°F), with an average of 5°C (42°F) and highs reaching 15°C (59°F). The month also experiences considerable precipitation, totaling 93 mm (3.7 in) over about 17 days, coupled with high humidity at 92%. In contrast, June welcomes warmer conditions, with temperatures ranging from a minimum of 7°C (44°F) to an average of 18°C (65°F), and soaring up to a maximum of 32°C (91°F). This month features less precipitation at 66 mm (2.6 in) over just 9 days, along with a slightly lower humidity level of 82%. For more details, you can check Saint-Gilles weather in June.

December and July present strikingly contrasting weather conditions. In December, temperatures can drop as low as -5°C (24°F), with an average of 5°C (42°F) and a maximum of 15°C (59°F). This month is marked by high humidity at 92% and relatively heavy precipitation, measuring 93 mm (3.7 in) over 17 days. In contrast, July experiences much warmer temperatures, starting at a minimum of 8°C (46°F) and averaging 19°C (66°F), with maximums soaring up to 39°C (102°F). Precipitation is lower in July at 71 mm (2.8 in) over 11 days, coupled with a more moderate humidity level of 80%. The sharp differences between the cold, damp December and the hot, humid July highlight the seasonal variability. For more details, you can check Saint-Gilles weather in July.

December and August present strikingly different weather conditions. In December, temperatures range from a chilly -5°C (24°F) at their lowest to a mild 15°C (59°F) at their peak, with an average of 5°C (42°F). The month sees considerable precipitation, totaling 93 mm (3.7 in) over approximately 17 days, contributing to a high humidity level of 92%. In contrast, August offers a much warmer climate with minimum temperatures of 8°C (46°F) and maximums soaring up to 36°C (97°F), averaging around 19°C (66°F). Although it experiences slightly less rainfall at 80 mm (3.2 in) over 14 days, the humidity is also lower at 76%. For more detailed weather insights, you can check Saint-Gilles weather in August.

December weather is considerably colder than September, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 15°C (59°F), while September boasts milder temperatures between 4°C (39°F) and 33°C (91°F). In December, the average temperature is a brisk 5°C (42°F), whereas September enjoys a warmer average of 15°C (60°F). Additionally, December experiences more precipitation, with 93 mm (3.7 in) over 17 days, compared to September's 55 mm (2.2 in) spread over 9 days. Humidity levels also differ, with December reaching 92% compared to September's 82%. For a detailed look at September's weather, you can check Saint-Gilles weather in September.

In comparing the weather of December and October, it's evident that December is much colder, with minimum temperatures dropping to -5°C (24°F) compared to October's milder minimum of 1°C (34°F). While October enjoys an average temperature of 12°C (54°F) and can reach a warm maximum of 25°C (77°F), December's average hovers around 5°C (42°F) with a maximum of just 15°C (59°F). December also experiences more precipitation, with 93 mm (3.7 in) spread over 17 days, whereas October sees slightly less rainfall at 76 mm (3.0 in) across 13 days. Additionally, humidity levels are higher in December at 92%, compared to October's 89%. For a more detailed look at October's conditions, you can visit Saint-Gilles weather in October.

December weather tends to be colder and wetter than November. While November has a minimum temperature of -2°C (28°F) and an average of 7°C (45°F), December sees a lower minimum of -5°C (24°F) and a decrease in the average temperature to 5°C (42°F). Precipitation also increases from 57 mm (2.2 in) over 11 days in November to 93 mm (3.7 in) over 17 days in December, making December a wetter month. Humidity remains consistent at 92% for both months, contributing to the chilly atmosphere. For more detailed information, you can check Saint-Gilles weather in November.

Compare Saint-Gilles's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Saint-Gilles

As December unfolds in Saint-Gilles, it heralds a distinct shift in weather, embracing the chill of winter. The temperatures drop significantly compared to previous months, frequently reaching a maximum of just 15°C during the day and dipping to a brisk -5°C at night. Additionally, this month sees an increase in precipitation, contributing to the city's overall damp ambiance with about 17 days of rain. The high humidity levels further enhance the wintry feel, enveloping the area in a persistent coolness. For a deeper dive into what to expect throughout the year, visit Saint-Gilles Climate.