🇮🇳 New Delhi vs 🇮🇳 Kolkata

Semi-arid — extreme summers, cold winters, brief monsoon, severe air pollution

Delhi has extreme seasonal swings. Winters can frost; summers regularly hit 113°F (45°C). The monsoon (July–September) provides relief but also flooding. The city has severe air quality problems, particularly October–February when pollution peaks.

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.