December Weather in Sint-Truiden, Belgium

Last updated: August 21, 2025

In December, Sint-Truiden, Belgium experiences a chill in the air, with maximum temperatures peaking at a mild 15°C (59°F), while the average drops to a brisk 5°C (42°F), and nighttime lows can plunge to a frigid -5°C (23°F). This month is marked by a significant precipitation amount of 103 mm (4.1 in), spread over approximately 18 days, making it one of the wetter months of the year. High humidity levels around 92% contribute to the overall dampness, often resulting in overcast skies. December in Sint-Truiden evokes a classic winter atmosphere, perfect for enjoying cozy indoor activities or marveling at the seasonal charm.

December Temperature in Sint-Truiden

In December, Sint-Truiden experiences a noticeable chill as winter settles in. With minimum temperatures dipping to -5°C (23°F), the month begins to showcase its frosty nature, while average highs reach a mild 15°C (59°F). The shift from November's slightly warmer range is evident, with December's overall average temperature standing at 5°C (42°F). This month marks a transition into the heart of winter, as residents prepare for colder days ahead, making the cozy atmosphere of cafes and festive markets especially inviting amid the brisk air.

December Weather in Sint-Truiden: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sint-Truiden, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sint-Truiden, 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).
JanFebMarAprMayJunJulAugSepOctNovDec384145505665666659544541
Data source: Temperature data for Sint-Truiden 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 Sint-Truiden

In December, Sint-Truiden experiences its highest precipitation levels of the year, with a notable 103 mm (4.1 in) of rain falling over 18 days. This surge in rainfall marks a significant increase compared to earlier months, where average precipitation ranges from 57 mm (2.2 in) in November to 89 mm (3.5 in) in August. The damp conditions lead to December being the wettest month, often draping the town in a cozy, wintery atmosphere. With precipitation spread over a higher number of days, residents can expect a mix of cloudy skies and intermittent showers, setting the stage for the region’s characteristic winter charm.

December Precipitation Trends in Sint-Truiden

The chart displays monthly precipitation patterns in Sint-Truiden, 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 Sint-Truiden, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec6774763864848189648757103
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sint-Truiden

As winter settles in, December brings a notable increase in humidity levels in Sint-Truiden, with an average of 92%. This rise follows a trend observed throughout the colder months, as humidity remains high from November's similar figure of 91%. The year transitions from the relatively dry summer months, where humidity dipped to its lowest at 71% in August and 72% in July. With the shift back towards colder temperatures, the environment becomes increasingly damp, culminating in December's heightened humidity. This pattern not only signifies the chill of winter but also sets the stage for the dry months ahead, showcasing the cyclical nature of the region's humidity throughout the year.

December Average Humidity in Sint-Truiden

This chart illustrates the average monthly humidity levels in Sint-Truiden, 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 Sint-Truiden is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sint-Truiden

In December, Sint-Truiden experiences a low UV Index of 1, similar to the early months of the year. This indicates a safe environment for outdoor activities, with a burn time of 45 minutes under direct sun exposure. As the seasons shift from the summer's peak (where the UV Index reaches 8 in July and June), there is a clear trend towards decreasing UV levels. Interestingly, December ties with January and February, highlighting winter's protective cloud coverage in Belgium. For those planning outdoor excursions during this time, it's a reassuring reminder to enjoy the crisp winter air without the worry of intense sunburn. For more insights on UV levels throughout the year, check the Sint-Truiden UV Index.

Maximum UV Index Levels in Sint-Truiden for December

The chart shows the monthly maximum UV Index (UVI) for Sint-Truiden 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 Sint-Truiden typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Sint-Truiden 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 Sint-Truiden

In Sint-Truiden, Belgium, the month of December brings a notable shift in daylight, with only 134 hours of sunshine, marking it as one of the dimmest months of the year. This reduction in sunlight follows a gradual decline from the vibrant summer peak of 404 hours in July and 393 hours in June and May. As the year progresses, daylight hours wane significantly, transitioning from a lively 268 hours in March to December's limited glow. Nonetheless, the crisp and often clear December skies can still brighten the winter landscape, making it a cozy backdrop for festive activities as the year comes to a close. Despite the lower sunshine count, Sint-Truiden remains a charming destination, inviting residents and visitors alike to embrace its winter warmth.

Monthly Sunshine Duration in Sint-Truiden: December Highlighted

The December sunshine duration represents the total number of hours Sint-Truiden 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.
JanFebMarAprMayJunJulAugSepOctNovDec120h202h268h342h393h393h404h378h317h240h188h134h
Data source: Sint-Truiden December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sint-Truiden During December

In Sint-Truiden, Belgium, the likelihood of sunny weather in December takes a notable dip, with chances of sunshine falling to just 15%. This trend marks a significant drop from the 26% observed in November, highlighting a gradual decrease in clear skies as winter deepens. While the probability of sun reaches its peak in the spring months, notably 47% in April, December's gloomy prospects are a stark reminder of the colder season's grip. As the year draws to a close, residents and visitors alike may need to prepare for more overcast days and embrace the cozy charm of winter in this picturesque town.

Percentage of Sunny Days in December in Sint-Truiden

The chart illustrates the percentage of sunny days in Sint-Truiden 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 Sint-Truiden experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec9%32%39%47%32%32%33%30%37%30%26%15%
Data source: Sint-Truiden December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sint-Truiden in December

As December arrives in Sint-Truiden, Belgium, daylight hours mirror the chill of winter, offering only 8 hours of light each day, similar to the preceding months of November and January. This marks a significant drop from the vibrant 16 hours of daylight experienced in June, illustrating the seasonal ebb and flow of sunlight. As we transition from the brightness of summer, daylight gradually diminishes, peaking with 15 hours in May and tapering down through the year. The trend highlights Belgium's distinctive seasonal rhythm, where each month presents a unique balance of light and shadow, inviting residents to cozy up and embrace the charm of winter's shorter days.

Average Daylight Hours in Sint-Truiden for December

The chart illustrates the variation in daylight duration in Sint-Truiden throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 30m10h 1m11h 55m13h 51m15h 31m16h 24m15h 56m14h 26m12h 34m10h 39m8h 56m8h 1m
Data source: Sint-Truiden daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Sint-Truiden

In December, Sint-Truiden experiences a gentle shift in its winds, with an average speed of 4.1 m/s (about 9 mph). This reflects a slight increase from the quieter summer months, where winds dipped as low as 2.7 m/s in June. The winter winds of December, while not the strongest of the year, provide a refreshing chill that hints at the approach of the colder season. Interestingly, as the year progresses, there is an overall tendency for the wind speeds to fluctuate, peaking in early winter and again in October, suggesting a dynamic climate that keeps Sint-Truiden's air lively all year round.

Average December Wind Speed in Sint-Truiden

The chart displays monthly wind speed patterns in Sint-Truiden, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.44.54.03.24.32.73.33.32.84.33.34.1 m/s
Data source: Sint-Truiden December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Sint-Truiden Compares to Other Months

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

In December, Sint-Truiden experiences a slightly milder climate compared to January, with average temperatures ranging from a minimum of -5°C (23°F) to a maximum of 15°C (59°F). The month also sees more precipitation, totaling 103 mm (4.1 in) over 18 days, and a high humidity level of 92%. By January, the weather becomes a touch colder, with temperatures dipping to a minimum of -8°C (18°F) and a maximum of 13°C (56°F), while the average temperature falls to 4°C (39°F). January experiences considerably less rainfall, with only 67 mm (2.7 in) spread over 12 days, and humidity remains slightly lower at 91%. For further details, you can check Sint-Truiden weather in January.

December and February present distinct weather characteristics in terms of temperature and precipitation. In December, temperatures range from a minimum of -5°C (23°F) to a maximum of 15°C (59°F), with an average of 5°C (42°F). The month experiences considerable rainfall, totaling 103 mm (4.1 in) over 18 days, and high humidity levels at 92%. In contrast, February sees slightly colder temperatures with a minimum of -9°C (17°F) and a maximum of 20°C (68°F), averaging 5°C (41°F). Precipitation decreases to 74 mm (2.9 in) across 12 days, and humidity remains relatively high at 90%. For more detailed insights about the weather in February, visit Sint-Truiden weather in February.

In December, temperatures in Sint-Truiden range from a chilly -5°C (23°F) to a mild 15°C (59°F), with an average of 5°C (42°F), making it a predominantly cold month. Decembers are wet, with 103 mm (4.1 in) of precipitation spread across 18 days, contributing to a high humidity level of 92%. In contrast, March brings milder and more varied weather, with temperatures ranging from -9°C (16°F) to a warmer 23°C (74°F) and an average temperature of 7°C (45°F). March experiences less rainfall, totaling 76 mm (3.0 in) over 15 days, and humidity decreases slightly to 87%. For more specific weather details, check out Sint-Truiden weather in March.

December and April present contrasting weather patterns. In December, temperatures range from a minimum of -5°C (23°F) to a maximum of 15°C (59°F), with an average of 5°C (42°F). The month experiences significant precipitation of 103 mm (4.1 in) over 18 days, accompanied by high humidity levels at 92%. In contrast, April gradually warms up, showcasing a minimum temperature of -4°C (26°F) and peaking at 28°C (82°F), with an average of 10°C (50°F). Precipitation is considerably lower at 38 mm (1.5 in), occurring over just 8 days, and humidity decreases to 84%. This shift from the cold, wet conditions of December to the milder, drier weather in April reflects the transition into spring. For more detailed information, you can visit Sint-Truiden weather in April.

December and May present stark contrasts in weather. December typically sees much cooler temperatures, with nighttime lows dipping to around -5°C (23°F) and averages hovering at about 5°C (42°F), while highs can reach up to 15°C (59°F). The month is also characterized by higher precipitation levels, averaging 103 mm (4.1 in) over approximately 18 days, combined with high humidity at 92%. In contrast, May brings milder and more pleasant conditions, with minimum temperatures around 1°C (34°F), average daytime temperatures rising to 14°C (57°F), and maximum highs soaring to 31°C (88°F). Precipitation decreases to 64 mm (2.5 in) over 14 days, and humidity notably drops to 77%, making it a much drier month. For more detailed information on May's climate, you can check this link: Sint-Truiden weather in May.

December and June offer stark contrasts in weather. In December, temperatures can drop as low as -5°C (23°F) with an average of 5°C (42°F), while June enjoys milder conditions, starting at a minimum of 7°C (46°F) and peaking at a maximum of 33°C (92°F). Precipitation is heavier in December, totaling 103 mm (4.1 in) over 18 days, compared to June's 84 mm (3.3 in) over just 12 days. Additionally, December's humidity levels average a high 92%, making the air feel much cooler, whereas June's humidity is relatively comfortable at 74%. For more details on June's climate, visit Sint-Truiden weather in June.

December and July present stark contrasts in weather. In December, temperatures range from a chilly -5°C (23°F) at night to a mild average of 5°C (42°F), peaking at 15°C (59°F) during the day. The month experiences significant precipitation, accumulating to 103 mm (4.1 in) over 18 days, accompanied by high humidity levels of 92%. In contrast, July boasts much warmer conditions, with nighttime lows of 7°C (46°F) and average temperatures soaring to 19°C (66°F), even reaching a sweltering maximum of 40°C (104°F). Precipitation in July is lighter, totaling 81 mm (3.2 in) but spread over only 10 days, along with a more comfortable humidity of 72%. For more details, check out Sint-Truiden weather in July.

When comparing the weather in December and August, there are notable contrasts in temperature and overall climate conditions. December typically experiences colder temperatures, with minimums dropping to -5°C (23°F) and a daily average around 5°C (42°F), whereas August enjoys milder conditions, with minimums around 7°C (45°F) and averages soaring to 19°C (66°F), peaking at a sizzling 36°C (97°F). Precipitation is slightly higher in December, totaling 103 mm (4.1 in) over 18 days, compared to August's 89 mm (3.5 in) over 14 days. Additionally, December boasts a higher humidity level of 92%, in contrast to the more comfortable 71% humidity found in August. For more detailed insights, you can check Sint-Truiden weather in August.

December and September showcase striking contrasts in weather. In December, temperatures dip significantly with a minimum of -5°C (23°F) and an average of just 5°C (42°F), while September enjoys much milder conditions with a minimum of 3°C (37°F) and an average temperature of 15°C (60°F). Furthermore, the maximum temperature in September can soar to 34°C (93°F), highlighting its warmth compared to December's maximum of 15°C (59°F). Precipitation is also more frequent in December, with 103 mm (4.1 in) falling over 18 days, compared to September's 64 mm (2.5 in) over 9 days. Additionally, December experiences higher humidity levels at 92%, while September's humidity is relatively lower at 81%. For more insights, you can visit Sint-Truiden weather in September.

December weather is notably colder than in October, with temperatures ranging from a minimum of -5°C (23°F) to an average of 5°C (42°F) and a maximum of 15°C (59°F). In contrast, October experiences milder conditions, with temperatures dipping as low as 1°C (35°F) and peaking at 25°C (78°F), resulting in an average of 12°C (54°F). Precipitation is also higher in December, with 103 mm (4.1 in) over 18 days compared to October's 87 mm (3.4 in) over 13 days. Additionally, December's humidity levels rise to 92%, slightly higher than October's 88%. For more specifics about October weather, you can check out Sint-Truiden weather in October.

In December, the weather is notably colder compared to November, with minimum temperatures dropping to -5°C (23°F) and an average temperature of 5°C (42°F). In contrast, November offers a slightly milder climate, with minimum temperatures around -3°C (27°F) and an average of 7°C (45°F). Additionally, December sees more precipitation, totaling 103 mm (4.1 in) over 18 days, while November experiences only 57 mm (2.2 in) of rain over 11 days. Humidity levels are similar, with December at 92% and November at 91%. For a detailed look at November's weather, you can visit Sint-Truiden weather in November.

Compare Sint-Truiden's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Sint-Truiden

As December wraps Sint-Truiden in its chilly embrace, the weather shifts dramatically from the milder months that preceded it. The average temperatures plunge, with crisp days often dipping to frosty lows, making it a stark contrast to the more temperate fall. Frequent rainfall, with nearly half the days experiencing precipitation, adds to the season's dampness, while a high humidity level keeps the air feeling colder. This month not only signals the onset of winter but also enhances the charm of the town as it prepares for festive celebrations. Explore more about the year-round weather patterns in the area at Sint-Truiden Climate.