🇧🇪 Brussels vs 🇧🇷 São Paulo

Brussels sits in a broad valley carved by the Senne river, with the city climbing from the low-lying lower town (~15m elevation) to the upper town and surrounding plateaus (~100m). This topographic split creates distinct microclimates: the lower town is prone to fog, temperature inversions, and trapped humidity, while the higher southeastern districts enjoy better ventilation and slightly cooler summers. The city's extensive parks and forested edges — particularly the Sonian Forest to the southeast — provide significant cooling corridors, but the dense 19th-century urban core generates a pronounced heat island effect.

Subtropical highland — warm and humid with no distinct dry season

São Paulo sits at 2,500 feet (760m) elevation, making it cooler than its tropical latitude would suggest. The city receives substantial year-round rainfall. Winters (June–August) are the dry season with mild, clear weather. Summers bring intense afternoon thunderstorms.