🇮🇳 Chennai vs 🇹🇷 Istanbul

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.

Mediterranean-influenced humid subtropical — warm summers, cool wet winters

Istanbul straddles two continents with a climate to match. The Bosphorus creates a persistent wind corridor that moderates summer heat. Winters are cold and rainy with occasional snow. Spring and fall are exceptional.