Last updated: January 18, 2025
Wallonia, Belgium, is characterized by a Cfb (Marine West Coast) climate, which influences its weather patterns throughout the year. Temperatures in this region can experience a remarkable range, with a minimum of -15°C (5°F) recorded in March, showcasing the potential for harsh winters. The average annual temperature hovers around 11°C (52°F), creating a mild overall climate. However, during the peak of summer, temperatures can soar to a stunning 40°C (105°F) in July, highlighting the sometimes extreme variability in weather. This climate framework underlines Wallonia's unique ecological and agricultural dynamics, shaped by its temperate conditions and annual temperature fluctuations.
In Wallonia, Belgium, temperature patterns exhibit distinct seasonal trends, beginning with the biting cold of winter, where January and February show minimums plunging to -15°C (5°F) and -14°C (6°F), respectively. As spring arrives, temperatures gradually rise, with March reaching an average of 7°C (44°F) and a maximum of 23°C (74°F), culminating in a warmer April, where daily highs approach 28°C (82°F). The transition into summer brings the peak heat in July, characterized by an extraordinary maximum of 40°C (105°F), while August maintains high temperatures but with a slight drop. The warm months pave the way for a cooler autumn; September sees average highs around 34°C (93°F), but by November, temperatures decline significantly, averaging 7°C (44°F) before winter returns. Overall, Wallonia experiences a diverse climatic spectrum, defined by chilly winters, mild springs, hot summers, and gradually cooling autumns.
In Liege, temperatures can drop to a minimum of -9°C (16°F) in March and rise to a scorching maximum of 40°C (104°F) in July, as detailed here. Conversely, Waterloo experiences a similar cold snap with lows of -9°C (17°F) in February and a maximum of 39°C (102°F) in July, as shown here. Meanwhile, Namur records even cooler temperatures, peaking at -11°C (12°F) in February and reaching a maximum of 37°C (99°F) in July, as indicated here.
Precipitation in Wallonia, Belgium, displays a notable pattern throughout the year, with winter months consistently recording significant rainfall. January and February each average around 75-77 mm (3.0 in) of rain, followed closely by March at 83 mm (3.3 in), setting a foundation for the wetter parts of the year. April sees a dip to 42 mm (1.6 in), but as spring transitions into summer, rainfall rises again, with May and June averaging 70 mm (2.7 in) and 77 mm (3.0 in), respectively. The summer months of July and August maintain similar levels of precipitation, around 76 mm (3.0 in) and 83 mm (3.2 in), emphasizing a rainy climate even during warmer weather.
As autumn arrives, the precipitation patterns shift, with October experiencing the highest monthly total at 87 mm (3.4 in), followed by November at 63 mm (2.5 in). December stands out with a remarkable 113 mm (4.4 in), marking it as the wettest month of the year. The number of rainy days also varies, with December experiencing the highest frequency at 18 days, while drier months like April see precipitation on only 8 days. This variability in both total precipitation and rainy days contributes to Wallonia's lush landscapes and rich biodiversity, reflecting its temperate maritime climate.
In Wallonia, Belgium, sunshine duration exhibits a clear seasonal pattern, with a gradual increase in sunshine hours from the cold winter months to the warm summer peak. January starts off with a modest 116 hours of sunshine, reflecting the region's overcast winter skies. This figure rises steadily through February to 196 hours, and subsequent months witness a sharp increase. By April, the sunshine duration expands to 345 hours, as spring blooms, leading into May's robust 393 hours. The trend culminates in the height of summer, with July achieving a peak of 407 hours, signifying the sunniest month in Wallonia.
As summer transitions into autumn, sunshine hours begin to decline. August still retains a notable 380 hours, but the reduction becomes more pronounced in September, dropping to 319 hours. By October, the amount of sunlight falls further to 242 hours and continues to decrease into the cooler months of November and December, with only 186 hours and 132 hours respectively. This seasonal fluctuation emphasizes the importance of summer months for sunshine enthusiasts in Wallonia, while the diminishing light in winter months highlights the varying daylight experiences throughout the year.
The UV Index in Wallonia, Belgium, reveals significant seasonal variations, reflecting the changing sun exposure throughout the year. During the winter months, UV Index values are generally low, with January at 2 and February rising slightly to 3, indicating minimal risk of harm from unprotected sun exposure. By March, the index climbs to 4, maintaining a moderate exposure category. The arrival of spring ushers in a notable increase, as April sees the UV Index rise to 6, categorized as high, demonstrating increased sun intensity and a reduced burn time of just 25 minutes.
As summer unfolds, Wallonia experiences some of its highest UV Index values, peaking at 9 in June, where the risk of harm from unprotected sun exposure becomes very high, leading to a burn time of only 15 minutes. July and August maintain strong levels of UV radiation at 8, with similar caution recommended during these months. As the season transitions into autumn, the UV Index begins to decline, with September dropping back to 6 and October to 4, where the sun is still potent but requires less vigilance. By winter, the UV levels fall again to 2 in November and 1 in December, emphasizing the need for sun protection during the sunnier months while also reminding residents to remain cautious in early spring to summer.
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The daylight duration in Wallonia, Belgium, showcases distinct seasonal changes, reflecting the varying length of days throughout the year. In the depths of winter, January and December offer a limited 8 hours of daylight, leading to shorter days that can feel especially dark. As February approaches, daylight begins to extend slightly to 10 hours, and March continues this upward trend with 11 hours as spring nears. By April, the days grow longer, providing 13 hours of daylight, finally reaching their peak in the summer months, where June boasts a generous 16 hours of sunlight.
As summer transitions to autumn, daylight duration gradually declines. July remains bright with 15 hours, but by August, it decreases to 14 hours as the days shorten. The drop continues in September, dropping to 12 hours, while October sees another dip to 10 hours. As autumn progresses into late fall and winter, daylight once again settles at 8 hours in both November and December, showcasing the cyclical nature of daylight in Wallonia. This variation highlights the contrast between the long, sunlit days of summer and the more subdued light of winter, influencing both daily activities and seasonal rhythms.
Bastogne, Belgium experiences a varied climate with cold winters and warm summers. Average temperatures in winter (January to February) can drop to around -12°C (10°F), while summer months like July can see highs of 36°C (96°F). Precipitation is relatively consistent throughout the year, peaking in December at 138 mm (5.4 in), with a noticeable drop during spring. Sunshine hours increase significantly from winter to summer, reaching up to 408 hours in June. For more detailed information, visit Bastogne climate.
The climate in Bernissart, Belgium is characterized by a temperate maritime climate, with significant temperature variation throughout the year. Winter months, such as January and February, see minimum temperatures around -8°C (18°F) and average temperatures around 5°C (42°F), while summers can reach highs of 40°C (104°F) in July. Precipitation is fairly distributed, with the wettest month being December at 100 mm (3.9 in), and the sunniest months of June and July offering over 400 hours of sunshine. For more detailed information, visit Bernissart climate.
The climate in Binche, Belgium, features a varied temperature range throughout the year, with January temperatures dropping to a minimum of -9°C (15°F) and peaking at 13°C (56°F). By July, temperatures can soar up to 38°C (101°F), providing a stark contrast to the cooler winter months. Precipitation is relatively consistent, with December seeing the highest rainfall at 101 mm (4.0 in), while sunshine hours peak in the summer, particularly in July with 407 hours. Overall, the climate in Binche offers a mix of chilly winters and warm summers, making it an intriguing destination throughout the year. For more details, visit Binche climate.
Bouillon, Belgium experiences a temperate oceanic climate characterized by mild summers and cool winters. January and February showcase the coldest temperatures, with minima dropping to -9°C (16°F), while July can see highs reaching up to 39°C (102°F). The region receives substantial rainfall throughout the year, peaking in December at 146 mm (5.8 in). Sunshine hours are most abundant in summer, particularly in June and July with 404 hours each, contributing to pleasant weather during these months. For more detailed information, visit Bouillon climate.
Braine-l'Alleud, Belgium experiences a temperate climate with distinct seasons. Winters can be quite cold, with January temperatures averaging around 4°C (39°F) and occasional lows of -7°C (20°F), while summers are warmer, peaking in July with averages of 19°C (66°F) and maximums reaching 39°C (102°F). Precipitation is fairly consistent throughout the year, with the wettest months being August and December. Sunshine varies, with the sunniest months being June and July, offering over 400 hours of sunlight. For more detailed information, visit Braine-l'Alleud climate.
Butgenbach, Belgium experiences a diverse climate with cold winters and warm summers. January temperatures can drop to -14°C, while July can see highs of up to 36°C. Precipitation varies throughout the year, peaking in June with 110 mm, while December is the wettest month with 128 mm. Sunshine hours are abundant from March to July, with July receiving the most at 408 hours. For more detailed climate information, visit Butgenbach climate.
Chevetogne, Belgium, experiences a temperate climate with distinct seasons. January is typically cold, with temperatures ranging from -11°C to 12°C, while July can reach up to 37°C, indicating summer warmth. Precipitation is fairly consistent throughout the year, peaking in December with 114 mm, and sunshine hours are highest from May to August, averaging around 392 to 401 hours. For more details on the local climate, visit Chevetogne climate.
Chimay, Belgium experiences a temperate climate with distinct seasonal variations. Winter months, particularly January and February, feature low temperatures averaging around 3-4°C (37-40°F) and significant precipitation, while July often sees peak temperatures reaching 38°C (101°F). Rainfall is most pronounced in late autumn and early winter, with December receiving 131 mm (5.1 in) of precipitation. Sunshine is abundant in summer, with July recording up to 404 hours, providing a stark contrast to the darker winter months. For more details on the weather patterns, visit Chimay climate.
Dinant, Belgium experiences a temperate climate characterized by distinct seasons. Winter temperatures can drop to as low as -11°C (13°F) in January, while summer peaks reach around 37°C (98°F) in July. The city sees significant rainfall, particularly in December (114 mm) and March (84 mm), with a total of 262 sunshine hours in March, the month that heralds the arrival of spring. May and June boast the most sunshine, averaging around 392 to 400 hours, making them ideal for outdoor activities. For more detailed information, visit Dinant climate.
Durbuy, Belgium experiences a temperate climate characterized by cold winters and warm summers. January sees temperatures ranging from -13°C to 12°C, with significant precipitation peaking at 130 mm in December. The summer months, particularly July, can reach highs of up to 37°C and enjoy the most sunshine, with 407 hours recorded. The weather is relatively mild in spring, while autumn brings cooler temperatures and gradual rainfall. For more detailed information, visit Durbuy climate.
Eben-Emael, Belgium experiences a diverse climate with distinct seasonal variations. Winters can be chilly, with January temperatures ranging from -8°C to 13°C, while summers can reach highs of up to 40°C in July. Rainfall is fairly consistent throughout the year, with the wettest month being December at 113 mm. Sunshine hours peak in July (407 hours) and are lowest in December (134 hours), contributing to the overall temperate conditions. For more detailed climate information, visit Eben-Emael climate.
The climate in Francorchamps, Belgium, features a wide range of temperatures throughout the year, with January lows averaging -13°C (9°F) and July highs reaching 37°C (99°F). Precipitation is significant, particularly in December, which receives about 137 mm (5.4 in), while April is the driest month at 49 mm (1.9 in). Sunny days peak in the summer months, with July enjoying approximately 409 hours of sunshine. For a more detailed overview, visit Francorchamps climate.
Genval, Belgium experiences a temperate climate characterized by cold winters and warm summers. January and February can see temperatures dropping as low as -9°C (17°F), while midsummer months like July can reach up to 39°C (102°F). Precipitation is fairly consistent year-round, peaking at 84 mm (3.3 in) in August, with a notable sunny period from April to August, where monthly sunshine hours exceed 300. The spring and summer months are generally drier, making them ideal for outdoor activities. For more detailed information, visit Genval climate.
Han-sur-Lesse, Belgium experiences a varied climate with cold winters and warm summers. January temperatures can plummet as low as -13°C (10°F), while July sees highs reaching 37°C (99°F). Precipitation is quite substantial, peaking at 123 mm (4.8 in) in December, and the region enjoys the most sunshine during the summer months, particularly in July with 405 hours of sun. The overall climate provides a distinctive seasonal experience, making it an intriguing location for visitors. For more details, visit Han-sur-Lesse climate.
Houffalize, Belgium, experiences a temperate climate characterized by cold winters and warm summers. January temperatures range from -13°C to 11°C, while July can soar up to 36°C. Precipitation is relatively high throughout the year, peaking in December with 139 mm, but April sees the lowest at 48 mm. Sunshine is most abundant in summer, with July receiving around 407 hours, compared to just 112 hours in January. For more detailed information, visit Houffalize climate.
La Hulpe, Belgium experiences a temperate maritime climate, characterized by mild winters and warm summers. The average temperature ranges from 4°C (39°F) in January to 19°C (66°F) in July, with July also seeing the highest maximum temperature of 39°C (102°F). Precipitation varies throughout the year, peaking in August at 84 mm (3.3 in), while sunshine hours reach their maximum in July with 406 hours. Despite the cooler winter months, La Hulpe's climate supports a range of outdoor activities, making it an appealing destination year-round. For more details, visit La Hulpe climate.
La Roche-en-Ardenne experiences a varied climate throughout the year, with January being the coldest month, where temperatures can drop to -13°C (9°F) and average around 2°C (36°F). The summer months, particularly July, can reach highs of 37°C (98°F), while rainfall is relatively consistent, peaking in December at 130 mm (5.1 in). Sunshine hours are abundant from March to August, maxing out at 407 hours in July. For more detailed information, visit La Roche-en-Ardenne climate.
Liege, Belgium experiences a temperate climate characterized by distinct seasons. January temperatures range from -8°C to 13°C, gradually warming to max temperatures of around 40°C in July. Precipitation is fairly consistent throughout the year, with December being the wettest month at 106 mm. The city enjoys the most sunshine in July, with 407 hours, while January sees the least at 120 hours. For more detailed information, visit Liege climate.
Louvain-la-Neuve experiences a temperate maritime climate with distinct seasons. Winters can be chilly, with January averages around 4°C (39°F) and January's maximum reaching 14°C (57°F), while summers are warm, particularly in July, when temperatures can peak at 39°C (102°F). Precipitation varies throughout the year, with the highest rainfall typically occurring in August (84 mm) and lowest in April (36 mm). The region enjoys considerable sunshine, especially in summer months, peaking at 406 hours in July. For more details, visit Louvain-la-Neuve climate.
Malmedy, Belgium experiences a temperate climate with significant seasonal variations. Winter temperatures can drop as low as -14°C (8°F) in March, while summer peaks reach up to 37°C (99°F) in July. Precipitation is highest in December at 137 mm (5.4 in) and tends to be spread throughout the year, with January and March also receiving over 100 mm. Sunshine hours peak in July with 409 hours, contributing to warm summer months. For more detailed information, visit Malmedy climate.
Mons, Belgium experiences a temperate climate with distinct seasonal variations. Winter temperatures can drop to a minimum of -9°C (17°F) in March, while summers can reach maximums of 39°C (103°F) in July. Precipitation varies throughout the year, with the highest rainfall observed in December at 100 mm (4.0 in), and an average of around 65 mm (2.6 in) during the summer months. The region enjoys considerable sunshine, peaking in July at 412 hours, making it a pleasant destination for outdoor activities. For more detailed information, visit Mons climate.
Namur, Belgium experiences a temperate climate with distinct seasonal variations. Winters can be quite cold, with January temperatures ranging from -8°C to 13°C, while summers are warmer, particularly in July when temperatures can reach up to 37°C. Precipitation is relatively consistent throughout the year, peaking in December with 105 mm, while the sunniest months are May through July. For more detailed information, visit Namur climate.
Plancenoit, Belgium experiences a temperate climate with distinct seasonal variations. Winter temperatures can drop as low as -9°C (17°F) in February, while summers can soar to 39°C (102°F) in July. Precipitation is relatively high, particularly in the summer months, with August seeing the most rainfall at 84 mm (3.3 in). The region enjoys considerable sunshine, especially from May to July, which collectively provides over 1,200 hours of sunlight. For more detailed information, visit Plancenoit climate.
Rochefort, Belgium experiences a varied climate with cold winters and warm summers. January temperatures range from a low of -13°C to a mild average of 2°C, while July can peak at 37°C. Precipitation is relatively high in the winter months, particularly in December, with 123 mm, while April sees the least at 45 mm. Sunshine hours are abundant in the summer, peaking in July with 405 hours, but drop significantly in winter. For more detailed information, visit Rochefort climate.
Ronquieres, Belgium, experiences a temperate climate characterized by cold winters and mild summers. January and February see average temperatures ranging from 4°C to 5°C, with January being the coldest month at a minimum of -7°C. Precipitation is significant throughout the year, peaking in December with 101 mm, while sunshine is most abundant in July with 407 hours. The transition from cooler to warmer months is marked by a steady rise in average temperatures, peaking in July and August. For more detailed information, visit Ronquieres climate.
Sainte-Marie-sur-Semois, Belgium, experiences a varied climate with cold winters and warm summers. January sees minimum temperatures around -11°C (12°F), while July can peak at a maximum of 37°C (99°F). Precipitation is highest in December (149 mm) and lowest in April (47 mm), with an annual average distributed throughout the year. Sunshine hours are abundant in summer months, peaking at 411 hours in June. For more detailed information, visit Sainte-Marie-sur-Semois climate.
The climate in Spa, Belgium, features a wide range of temperatures throughout the year, from chilly winters with January lows reaching -12°C (10°F) to warm summers where July highs can soar to 38°C (101°F). Average temperatures range from 2°C (36°F) in January to 18°C (64°F) in July, highlighting a significant seasonal variation. Precipitation is relatively high, especially in December, with notable rainfall occurring throughout the year, while sunny days peak in the summer months, particularly in July and August. For more detailed information, visit Spa climate.
The climate in Tournai, Belgium, features cold winters and warm summers, with January temperatures ranging from -6°C to 14°C and July highs reaching up to 40°C. Precipitation is fairly consistent throughout the year, peaking in December with 98 mm, while the sunniest months are June and July, each with over 400 hours of sunshine. Spring and summer months see average temperatures rise significantly, making Tournai a pleasant destination during these seasons. For more detailed information, visit Tournai climate.
The climate in Waimes, Belgium, features a range of temperatures with cold winters and warm summers. January sees minimum temperatures around -13°C (9°F) and maximums up to 12°C (53°F), while July can reach highs of 37°C (99°F). Rainfall is significant, particularly in the winter months, with December averaging 137 mm (5.4 in) of precipitation. Sunshine is most abundant in summer, peaking at 409 hours in July. For more detailed information, visit Waimes climate.
Waterloo, Belgium experiences a temperate climate with distinct seasonal variations. Winters are cold, with January temperatures ranging from -7°C to 14°C, while summers can be hot, peaking in July with highs of 39°C. Precipitation is notable, especially in the summer months, with August seeing the highest at 84 mm. Sunshine hours increase from winter to summer, reaching a peak of 406 hours in July. For more detailed data, visit Waterloo climate.
In summary, Wallonia, Belgium, experiences a rich tapestry of climatic and environmental elements that shape its seasons and lifestyle. From the moderate temperatures and variable precipitation to the significant changes in sunshine duration and UV Index throughout the year, each aspect contributes uniquely to the region's ecosystem and daily rhythm. The long, sunlit days of summer invite outdoor activities and foster vibrant agricultural practices, while the shorter daylight hours of winter encourage a different pace of life. Understanding these climatic patterns is essential for both residents and visitors, as it highlights the importance of adapting to seasonal changes and embracing the natural beauty that Wallonia has to offer throughout the year.