🇧🇪Belgium

Belgium lies in northwestern Europe at 49°30′–51°30′N, spanning the low Flanders plain near the North Sea coast to the Ardennes plateau in the southeast, which rises to 694 m at Signal de Botrange. The entire country exhibits a temperate oceanic climate (Köppen Cfb) shaped by Atlantic frontal systems, though the Ardennes show subtle continental influence with colder winters and heavier precipitation. The North Sea moderates coastal temperatures, keeping them milder year-round with frequent maritime fog.

Brussels averages 3°C in January and 18°C in July with approximately 820 mm annual precipitation distributed fairly evenly. Coastal Flanders remains milder, while the Ardennes receive 1,200–1,400 mm annually and see reliable winter snow above 500 m. Recent decades have brought more frequent summer heatwaves—temperatures exceeding 40°C were recorded in Flanders in 2019 and 2020—and heavy rainfall events, including the July 2021 floods on the Meuse and Vesdre rivers in Wallonia affecting multiple communities. Atlantic frontal systems continue to dominate weather patterns.

Our archive covers 0 Belgian cities with daily ERA5 reanalysis data going back to 1940.