Belgium Weather Forecast

Belgium's temperate maritime climate delivers mild, damp conditions year-round, heavily influenced by the North Sea and Atlantic weather systems. The flat coastal plain in the northwest is slightly milder and windier, while the hilly Ardennes region in the southeast is cooler and wetter, receiving more snowfall in winter. Belgium's small size means weather is fairly uniform, but elevation differences create noticeable local variations.

Rain is Belgium's most constant weather companion, falling on an average of 200 days per year. While individual rainfall amounts are usually modest, the persistence of grey, drizzly conditions is a hallmark of Belgian weather. Summer brings warmer temperatures with occasional thunderstorms, and heat waves have become increasingly common, with temperatures sometimes exceeding 35°C — a notable departure from the country's traditionally moderate climate.

Brussels has cool winters averaging around 3°C and mild summers around 18°C, with rain possible at any time. The Ardennes around Bastogne and Spa are 5-7°C cooler than the lowlands and receive regular snowfall from November through March. The coast around Ostend and Bruges is windier but slightly milder in winter due to the North Sea's thermal influence, making it a popular destination for brisk winter walks along the beach.