Weather in Belgium All countries Weather in Belgium Weather in Belgium by months SeptemberOctoberNovemberDecemberJanuaryFebruaryMarchAprilMayJuneJulyAugust City Now Sea water Rain Wind Aalst +19°C — 2% 6 m/s Antwerp +20°C — 1% 6 m/s Arlon +16°C — 1% 6 m/s Blankenberge +18°C +18°C 3% 8 m/s Beauvechain +17°C — 4% 6 m/s Bruges +18°C — 5% 8 m/s Brussels +19°C — 3% 6 m/s Wavre +17°C — 4% 6 m/s Waregem +20°C — 7% 6 m/s Waterloo Belgium +19°C — 3% 6 m/s Geel +18°C — 1% 6 m/s Genk +17°C — 5% 5 m/s Ghent +20°C — 1% 6 m/s Geraardsbergen +20°C — 1% 5 m/s Grace Hollogne +17°C — 6% 6 m/s Dendermonde +19°C — 1% 6 m/s Ypres +18°C — 12% 7 m/s Knokke Heist +18°C +18°C 3% 8 m/s Kortrijk +20°C — 7% 6 m/s Leuven +18°C — 4% 6 m/s Liege +17°C — 7% 6 m/s Mechelen +19°C — 2% 6 m/s Mol +18°C — 4% 6 m/s Mons +19°C — 5% 6 m/s Namur +18°C — 4% 6 m/s Ninove +19°C — 3% 6 m/s Ostend +16°C +17°C 11% 8 m/s Poperinge +18°C — 12% 7 m/s Putte +19°C — 2% 6 m/s Ronse +17°C — 7% 6 m/s Sambreville +17°C — 4% 6 m/s Spa +16°C — 1% 6 m/s Tournai +20°C — 7% 6 m/s Turnhout +18°C — 1% 6 m/s Flemalle +17°C — 6% 6 m/s Frameries +19°C — 5% 6 m/s Hamme +19°C — 1% 6 m/s Harelbeke +20°C — 7% 6 m/s Hasselt +17°C — 4% 6 m/s Herentals +19°C — 2% 6 m/s Charleroi +18°C — 4% 6 m/s Chatelet +18°C — 4% 6 m/s