🇮🇳 New Delhi vs 🇵🇰 Karachi

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.

Karachi's climate is dominated by its position on the Arabian Sea coast along the southern edge of the Sindh plain, creating a hot semi-arid environment moderated by maritime influence. The city experiences extreme heat from April to June before the southwest monsoon brings humid relief, while sea breezes penetrate unevenly across the sprawling metropolitan area depending on distance from the coast and building density. The Lyari and Malir river corridors, mangrove-fringed coastline, and stark contrasts between dense old-city fabric and open peripheral development create significant microclimate variation across the megacity.