🇮🇳 Chennai vs 🇮🇪 Dublin

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.

Temperate oceanic — mild, rainy, windy year-round, no extremes

Dublin's climate is famously wet and mild. It never gets very hot or very cold. Rain is possible any day of the year. Summer brings long twilight evenings; winters are dark and stormy.