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Heavy overnight downpour triggers widespread flooding across Hanoi

Intense rainfall exceeding 150 millimeters inundated several districts of Vietnam's capital overnight, paralyzing transportation networks and forcing numerous businesses to shut their doors Thursday morning.

LSN Vietnam · 17 September 2026

Heavy overnight downpour triggers widespread flooding across Hanoi

Hanoi experienced severe flooding Thursday following a deluge of precipitation that struck the city from late Wednesday through early morning hours. Multiple areas recorded rainfall surpassing 150 millimeters, with water accumulating rapidly across major thoroughfares and secondary streets as drainage systems became overwhelmed.

The flooding created significant disruptions to commuter traffic throughout the city as main roads became impassable and traffic signals malfunctioned in waterlogged intersections. Motorcyclists and vehicle operators navigated carefully through submerged streets, with some areas experiencing near-total traffic gridlock during peak morning hours.

Commercial activity ground to a halt across numerous neighborhoods as shop owners and business operators closed operations and began efforts to clear water from their premises. The flooding presented particular challenges for low-lying commercial districts, where water levels rose high enough to damage merchandise and disrupt daily operations.

Local authorities have not yet released comprehensive damage assessments or confirmed whether the downpour was part of broader seasonal weather patterns affecting the region. Transportation services and business resumption remained uncertain as cleanup efforts continued throughout Thursday.