Full Breakdown
Flooding Overwhelms Ho Chi Minh City on September 30, 2026
By Drooid · · How we work
Core Event: Heavy Rain and High Tides Trigger Citywide Flooding
On the morning of September 30, 2026, prolonged heavy rain combined with high tides on the Saigon River to inundate streets across Ho Chi Minh City. Water levels rose to 1.6–1.85 meters at high tide and flooded low-lying districts, slowing traffic and disrupting businesses.
Background & Context: Climate Change, Urban Growth, and Infrastructure Limits
Nearly half of the city’s land lies less than 1 meter (3.2 feet) above sea level, and its drainage network dates to the French colonial era when the population was about 2 million. Rapid urbanisation, the 2023 merger of surrounding provinces into a megacity, and groundwater extraction that causes land subsidence have all strained the system. Professor Benjamin Horton of City University of Hong Kong notes that “climate change is raising the baseline on which these events occur,” amplifying flood risk as sea levels rise and downpours intensify.
Data & Statistics
- Rainfall: 5–20 mm across most of the city, with localized totals exceeding 50 mm.
- High-tide level: 1.6–1.85 meters.
- Depth of standing water: 30–40 cm in some streets; water reached knee height at market stalls.
- Traffic impact: Travel time on Nguyen Van Linh Street rose to 20–30 minutes from a normal 10 minutes.
- Risk assessment: Mitkatadvisory assigned an environmental severity score of 3/5 with an 82 % confidence level.
- Infrastructure plan: Earlier this year the city launched a $13 billion program to upgrade drainage and address 159 flood hot spots by 2030.
Official Statements & Responses
Ms. Nguyen Thi Liem, Chairwoman of the Binh Loi People’s Committee, said local authorities have carried out road maintenance, inspected pump performance, and are proposing upgrades to canals and drainage routes to mitigate future flooding. The city’s climate action plan, adopted for 2023–2030, calls for expanded green spaces and canal improvements to cope with rising sea levels and heavier rain.
On-the-Ground Reports
Residents described daily life continuing amid water. Vendor Nguyen Ngoc Thuong reported knee-deep water that lingered for more than two hours, yet customers still walked through the flood to buy food. Motorcyclists on Nguyen Van Khoi, Pham Van Chieu, and Phan Huy Ich streets were forced to push stalled bikes or walk, while drivers on Mai Chi Tho and Nguyen Van Linh streets experienced delays of up to half an hour.
Verbatim Quotes
- “In cities such as Ho Chi Minh City, climate change is increasingly amplifying flood risk because it is interacting with rapid urbanisation and land subsidence,” — Benjamin Horton, a professor of earth science at City University of Hong Kong
- “Climate change is raising the baseline on which these events occur,” — Benjamin Horton, a professor of earth science at City University of Hong Kong
What’s Next
The city’s $13 billion flood-control program aims to complete upgrades to the identified 159 hot spots by 2030, including canal enlargement, pump modernization, and the creation of additional green infrastructure. Authorities will continue to monitor rainfall and tide forecasts, advising commuters to avoid known flood-prone routes during peak periods.