🇮🇳 Chennai vs 🇯🇵 Tokyo

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 subtropical — distinct four seasons, hot humid summers, mild winters

Tokyo has dramatic seasonal swings. Cherry blossom season (late March–April) and autumn foliage (October–November) are spectacular. Summers are brutally hot and humid with typhoon risk. Winters are mild and dry with occasional snow.