Bharatpur sits in one of Nepal’s mid-hill valleys, where a milder climate than the Terai plains still receives the bulk of its rainfall during the June-to-September monsoon.
In Chitwan district, the city’s Narayani River is one of Nepal’s largest, and its monsoon-driven rise is a key factor in local flood risk. The Kathmandu Valley’s rapid, often unplanned urbanization has reduced natural drainage capacity, so intense monsoon downpours can cause serious urban flooding even though the valley’s rivers are relatively small, and radar helps track these fast-developing storms before they overwhelm city drainage. Learn more: Flash Flood Warning Signs on Radar · Open the full Rain Map