Floods: The Yamuna River, and several smaller rivers and streams that flow through Delhi, can cause flooding during the monsoon season (July-September).
Heatwaves: Delhi experiences extreme heat during the summer months (April-June), with temperatures often reaching 40°C.
Storms: Thunderstorms and dust storms are common during the pre-monsoon season (March-May).
Air pollution: Delhi is one of the most polluted cities in the world, and air pollution can cause respiratory and other health problems.