🇮🇳 Chennai vs 🇦🇹 Vienna

Chennai's tropical wet-and-dry climate is defined by its long Bay of Bengal coastline, which delivers the northeast monsoon from October to December — the city's primary rainy season, unusual for an Indian metro. The flat coastal plain offers little topographic relief, so microclimates are driven primarily by proximity to the sea, river corridors along the Adyar and Cooum, and dramatic variation in building density and green cover. Summer temperatures routinely exceed 40°C inland while coastal neighborhoods benefit from steady onshore sea breezes that moderate heat by 3–5°C.

Humid continental — cold winters, warm summers, variable transitional seasons

Vienna sits in the Danube basin surrounded by the Vienna Woods and the Alps to the west, which shelter it from the worst Atlantic weather but bring cold alpine air in winter. Summers are warm and lively; winters are cold but culturally rich.