Karachi experiences a hot, arid climate with a brief monsoon season that divides the year into distinct periods of scorching heat and sudden humidity.
The monsoon arrives in July and August, bringing sporadic but heavy downpours that turn dusty streets into obstacle courses requiring waterproof footwear and quick-dry fabrics.
Temperatures range from a mild 12°C in January to a blistering 40°C in May and June, when stepping outside feels like opening an oven door.
Sea breezes from the Arabian Sea provide merciful relief during the hottest months, making coastal areas noticeably more bearable than inland districts.
Light-colored, loose cotton clothing is the uniform of choice year-round, as Karachi's combination of heat, dust, and occasional humidity punishes anything synthetic or dark.