🇮🇳 Kolkata vs 🇦🇹 Vienna

Kolkata's tropical wet-and-dry climate is dominated by the Bay of Bengal monsoon, the Hooghly River corridor, and the vast deltaic floodplain of the Ganges. The city experiences extreme humidity from May through October, with the river and surrounding wetlands amplifying moisture levels, while winter months bring dry northwesterly winds and brief cool spells. The dense urban core generates a pronounced heat island effect, but the Hooghly riverfront, the East Kolkata Wetlands, and the Maidan parkland create significant cooling corridors that shape neighborhood-level weather.

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.