🇵🇰 Karachi vs 🇲🇽 Mexico City

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.

Subtropical highland — mild year-round due to altitude, distinct wet season

Mexico City's high altitude (7,350 ft/2,240m) keeps temperatures surprisingly mild year-round. Days are typically 65–75°F; nights cool significantly. The rainy season (May–October) brings afternoon thunderstorms. Air quality is a year-round concern due to the enclosed valley.