December Weather in Tournai, Belgium

Last updated: August 21, 2025

December in Tournai, Belgium is characterized by chilly temperatures, with maximums reaching up to 15°C (59°F) and averages hovering around 6°C (43°F). The month brings a brisk feel, often plunging to lows of -4°C (26°F). With a significant precipitation total of 98 mm (3.9 in) over approximately 17 days, residents can expect a wet atmosphere, complemented by a high humidity level of 92%. This combination creates a distinctly dreary yet atmospheric backdrop for the festive season in this historic city.

December Temperature in Tournai

In December, Tournai, Belgium begins to embrace the chill of winter, with temperatures typical of the season. Daytime highs hover around a mild 15°C (59°F), offering occasional respite from the cold, while nighttime lows can dip to -4°C (26°F), indicating that warm layers are essential for evening outings. The average temperature sits at 6°C (43°F), reflecting a trend of cooler conditions as the year draws to a close. This month stands in line with November's gradual descent into winter, but with slightly lower temperatures and a heightened sense of festive atmosphere as holidays approach. Overall, December in Tournai invites you to enjoy the charm of winter while appreciating the softer moments of the season.

December Weather in Tournai: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Tournai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tournai, 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).
JanFebMarAprMayJunJulAugSepOctNovDec404246505664666660544642
Data source: Temperature data for Tournai generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Tournai

In Tournai, Belgium, December marks the peak of the precipitation year, with an impressive 98 mm (3.9 in) falling over an average of 17 days. This increase in rainfall is notable compared to the preceding months, where precipitation levels typically hover around 60-81 mm, and fewer rainy days are recorded. The transition from fall to winter not only brings colder temperatures but also ushers in a more vigorous wet season, making December the wettest month. This trend highlights the region's shift towards a damp and chilly winter, underscoring the importance of preparing for extended periods of rain during this time.

December Precipitation Trends in Tournai

The chart displays monthly precipitation patterns in Tournai, 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 Tournai, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec646970375857567648816098
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Tournai

In Tournai, Belgium, December marks the culmination of a year characterized by high humidity, with levels soaring to 92%. As the colder months set in, humidity remains consistently elevated, mirroring the trends observed in January and November. Throughout the year, humidity gradually decreases from its highest point in the winter months, peaking at 91% in January before tapering to 76% in the warmth of August. Interestingly, the fall months see a rise again, as October's humidity climbs back to 89%, leading into a damp December. This cyclical pattern showcases Tournai's distinctive climate, where moisture lingers long into the winter, providing a unique charm to the city's festive atmosphere.

December Average Humidity in Tournai

This chart illustrates the average monthly humidity levels in Tournai, 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 Tournai 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 Tournai

In December, Tournai, Belgium experiences a dip in the UV Index, with a value of 1, categorizing it as low risk for solar exposure. This trend marks a notable shift from the higher indices seen during the summer months, where values peaked at 8 in both June and July, indicating very high exposure risk. As December settles in, the burn time extends back to 45 minutes, reminiscent of the protective margins in the earlier winter months of January and February. This seasonal variation highlights the importance of adjusting sun safety practices accordingly; while the winter sun may seem less fierce, it's still wise to remain mindful of UV exposure. For more detailed insights, visit Tournai UV Index.

Maximum UV Index Levels in Tournai for December

The chart shows the monthly maximum UV Index (UVI) for Tournai 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 Tournai typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224578875421
Data source: Tournai 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 Tournai

In Tournai, Belgium, December offers a quieter sun-soaked finale to the year, delivering an average of 148 hours of sunshine. While the month marks a dip from the vibrant peaks of summer, which bask in over 400 hours of sunlight, it reflects the pattern of increasing daylight as the seasons shift. Following a gradual decline from April's high of 348 hours through the cloudier months of late autumn, December serves as a reminder of the cyclical nature of light. The contrast between the year's sunniest months and the winter months highlights Tournai's varied climate, inviting residents and visitors alike to appreciate the fleeting moments of sunshine even in the heart of winter.

Monthly Sunshine Duration in Tournai: December Highlighted

The December sunshine duration represents the total number of hours Tournai 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.
JanFebMarAprMayJunJulAugSepOctNovDec120h197h265h348h396h404h415h383h321h254h197h148h
Data source: Tournai December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tournai During December

As December rolls around in Tournai, Belgium, the likelihood of sunny weather takes a noticeable dip, with only a 16% chance of sunshine. This reflects a trend seen throughout the colder months, where the chances of clear skies consistently decline from the milder conditions of autumn. Following November's modest 25% chance, December's weather can feel particularly gloomy, foreshadowing the chill of winter. In stark contrast, the sunnier months of spring, such as April with its 51% chance of sun, remind us that brighter days are just around the corner. Thus, while December may cloak Tournai in overcast skies, it also signals the approach of a season where sunshine becomes increasingly available once more.

Percentage of Sunny Days in December in Tournai

The chart illustrates the percentage of sunny days in Tournai 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 Tournai experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%28%40%51%35%32%34%31%37%34%25%16%
Data source: Tournai December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tournai in December

As December unfolds in Tournai, Belgium, residents experience only 8 hours of daylight, matching the brevity seen in early January and late November. This period marks the year’s nadir in daylight, as the sun sets early and rises late, enveloping the city in the cozy embrace of winter. In contrast, daylight hours gradually increase from the depths of winter through spring, peaking in June with a generous 16 hours of daylight. This cyclical dance of light showcases the seasonal transition, offering a rhythm that encourages residents to savor both the festive ambiance of holiday lights and the anticipation of longer days ahead.

Average Daylight Hours in Tournai for December

The chart illustrates the variation in daylight duration in Tournai 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 30m16h 22m15h 55m14h 25m12h 34m10h 39m8h 57m8h 2m
Data source: Tournai daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Tournai

In Tournai, Belgium, the December winds typically mirror the year's average, with speeds reaching around 4.0 m/s (9 mph). This month maintains a consistency that reflects the trends seen in the autumn months, where wind speeds hover between 3.2 m/s (7 mph) in November and peak towards early winter. As the year transitions, the winds tend to vary, starting off relatively brisk in January and February before tapering to the calmest breezes in June. However, December's winds serve as a gentle reminder of the dynamic weather patterns that characterize Tournai, providing a brisk yet manageable climate as the city gears up for the festive season.

Average December Wind Speed in Tournai

The chart displays monthly wind speed patterns in Tournai, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.04.53.93.34.32.83.33.32.94.23.24.0 m/s
Data source: Tournai December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Tournai Compares to Other Months

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

In December, temperatures in Tournai range from a minimum of -4°C (26°F) to a maximum of 15°C (59°F), with an average temperature of 6°C (43°F). The month is characterized by significant precipitation, totaling 98 mm (3.9 in) spread over 17 days, coupled with high humidity at 92%.

In contrast, January sees a slight dip in temperatures, with minimums dropping to -6°C (21°F) and an average of 4°C (40°F), while the maximum only slightly decreases to 14°C (58°F). Precipitation also decreases to 64 mm (2.5 in) over 12 days, and humidity remains fairly stable at 91%. For a more detailed look at the weather conditions, visit Tournai weather in January.

December and February present contrasting weather patterns despite having similar average temperatures. In December, the minimum temperature can drop to -4°C (26°F), with an average high of 15°C (59°F) and significant precipitation of 98 mm (3.9 in) over 17 days, contributing to a notably high humidity of 92%. In contrast, February typically experiences even colder nights, with minimum temperatures reaching -7°C (19°F), but it offers slightly milder daytime highs of up to 19°C (66°F) and less rainfall at 69 mm (2.7 in) across 13 days, resulting in lower humidity at 89%. For a detailed look at February’s weather specifics, visit Tournai weather in February.

In December, temperatures in Tournai range from a chilly minimum of -4°C (26°F) to a mild maximum of 15°C (59°F), with an average of 6°C (43°F), and the month experiences significant precipitation of 98 mm (3.9 in) over 17 days, alongside high humidity at 92%. In contrast, March presents slightly cooler temperatures, with a minimum of -8°C (18°F) and a warmer maximum of 23°C (73°F), resulting in an average of 8°C (46°F). March sees less precipitation at 70 mm (2.8 in) across 14 days and slightly lower humidity at 87%. For more detailed insights, check Tournai weather in March.

In December, temperatures range from a chilly minimum of -4°C (26°F) to a milder average of 6°C (43°F), with a maximum of 15°C (59°F). The month experiences considerable precipitation, totaling 98 mm (3.9 in) over 17 days, and high humidity at 92%. In contrast, April brings a noticeable shift in weather, with temperatures starting at a minimum of -3°C (27°F) and averaging 10°C (51°F), peaking at a warm 26°C (79°F). Precipitation decreases significantly to 37 mm (1.4 in) over just 7 days, and humidity also drops to 85%. The transition from December's cold and damp conditions to April's warmer and drier climate highlights the significant seasonal changes. For more detailed information, check out Tournai weather in April.

December and May display markedly contrasting weather patterns. In December, temperatures can dip as low as -4°C (26°F), with an average of 6°C (43°F) and highs reaching up to 15°C (59°F). The month is characterized by heavy precipitation, averaging 98 mm (3.9 in) over approximately 17 days, alongside high humidity levels at 92%. In contrast, May brings warmer temperatures with a minimum of 1°C (34°F) and an average of 14°C (57°F), peaking at 29°C (85°F). Precipitation also decreases to around 58 mm (2.3 in) over 13 days, and humidity is slightly lower at 82%. For more details, check Tournai weather in May.

December and June present a stark contrast in weather. In December, temperatures range from a chilly -4°C (26°F) to a milder 15°C (59°F), with an average of 6°C (43°F). The month is characterized by high humidity at 92% and frequent precipitation, totaling 98 mm (3.9 in) over 17 days. In contrast, June boasts a much warmer climate, with temperatures starting at a minimum of 6°C (43°F) and reaching up to 33°C (91°F), averaging 18°C (65°F). Precipitation in June is also lighter, with only 57 mm (2.2 in) falling over 9 days, and humidity sits at a lower 82%. For a closer look at what to expect, check out Tournai weather in June.

In December, Tournai experiences notably colder temperatures, with a minimum of -4°C (26°F) and an average of 6°C (43°F), while July boasts much warmer conditions, featuring a minimum temperature of 8°C (47°F) and an average of 19°C (66°F). The maximum temperature in July can even reach 40°C (104°F), providing a stark contrast to December's highest temperature of 15°C (59°F). Additionally, December is characterized by higher precipitation levels at 98 mm (3.9 in) over 17 days, compared to July's 56 mm (2.2 in) over just 10 days. Humidity also varies, with December at a high of 92% versus July's relatively lower 80%. For more information on the typical weather in Tournai during July, you can visit Tournai weather in July.

In December, the weather is markedly colder, with temperatures ranging from a chilly -4°C (26°F) to a mild 15°C (59°F), averaging around 6°C (43°F). This month also sees significant precipitation, with 98 mm (3.9 in) spread over 17 days and a high humidity level of 92%. In contrast, August presents a much warmer climate, with temperatures starting at a minimum of 7°C (46°F) and peaking at an impressive 37°C (99°F), averaging 19°C (66°F). Precipitation is lighter at 76 mm (3.0 in) over 13 days, and humidity drops to 76%. The stark difference in temperature and overall weather conditions exemplifies the seasonal transition from winter to summer. For more details, you can check Tournai weather in August.

In December, the weather is notably chillier than in September, with temperatures ranging from a minimum of -4°C (26°F) to a maximum of 15°C (59°F) and an average of around 6°C (43°F). In contrast, September boasts much warmer conditions, with temperatures starting at a minimum of 4°C (40°F) and peaking at 32°C (90°F), resulting in a comfortable average of 16°C (61°F). Additionally, December experiences higher precipitation levels with 98 mm (3.9 in) over 17 days, compared to September's 48 mm (1.9 in) spread across just 9 days. Humidity is also higher in December at 92%, compared to 82% in September, making the latter feel drier and more pleasant. For more detailed insights into September's weather, visit Tournai weather in September.

In comparing the weather of December and October, December tends to be much colder, with average temperatures ranging from a minimum of -4°C (26°F) to a maximum of 15°C (59°F). In contrast, October enjoys milder conditions, with temperatures fluctuating between 1°C (35°F) and 25°C (77°F). Precipitation is slightly higher in December, totaling 98 mm (3.9 in) over 17 days, compared to October’s 81 mm (3.2 in) over 13 days. Additionally, December experiences higher humidity at 92%, versus October's 89%. For a closer look at October's weather specifics, you can visit Tournai weather in October.

December weather in Tournai is notably colder than November, with average temperatures dropping from 8°C (46°F) in November to just 6°C (43°F) in December. The minimum temperatures also decline slightly, from -2°C (30°F) in November to -4°C (26°F) in December. While both months experience high humidity at 92%, December sees increased precipitation, with 98 mm (3.9 in) over 17 days compared to November's 60 mm (2.4 in) across 11 days. For more detailed insights on November's climate, you can check Tournai weather in November.

Compare Tournai's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Tournai

As December settles over Tournai, the weather transforms dramatically from the milder months, ushering in a chill that blankets the city. With temperatures often dipping to a brisk minimum of -4°C, the average cools significantly to around 6°C. This shift is accompanied by increased precipitation, with nearly half the month seeing rain, resulting in a humid atmosphere that can feel quite biting, especially with humidity levels soaring to 92%. Those venturing out should be prepared for the frequent showers that characterize the month, making December distinctly wetter than its autumn predecessors. For a detailed look at weather patterns, visit Tournai Climate.