Monsoon flood awareness

The water comes back every year. Preparedness is what changes the outcome.

Bangladesh sits on the delta of three of the world's mightiest rivers. Roughly four out of every five acres of the country lie within a floodplain — which is why knowing the risk, and knowing what to do, matters to almost every household here.

Learn the safety steps Get involved
Why it matters

A delta nation, built by the very rivers that flood it

The Ganges, the Brahmaputra and the Meghna all empty into the Bay of Bengal through Bangladesh, carrying rain and snowmelt from a vast catchment far beyond its borders. Most years bring a manageable, even beneficial, flood that deposits fertile silt on the fields. Severe years bring something else entirely — which is why awareness and early warning save far more than they cost.

~80%of Bangladesh's land is classified as floodplain
20–25%of the country floods in an average monsoon year
60%+of the country can flood in a severe, once-in-decades year
3major rivers converge here: the Padma, the Jamuna and the Meghna

Figures reflect long-running geographic and government estimates cited by researchers and the Bangladesh Water Development Board; they describe typical patterns, not a live measurement.

Flood safety

Before, during, after

The three stages of a flood call for different actions. This is general safety guidance — always follow instructions from local authorities and the Flood Forecasting & Warning Centre over anything on this page.

Before

While the water is still low

  • Learn whether your home sits in a flood-prone area and know your nearest raised shelter.
  • Prepare a grab-bag: cash, copies of ID and land papers, medicines, a torch and a battery radio.
  • Store drinking water and dry food somewhere above expected flood levels.
  • Save your local warning contacts and check FFWC water-level bulletins during monsoon.
During

While flooding is happening

  • Move to higher ground or a designated shelter as soon as a warning is issued — don't wait to see how high it gets.
  • Never walk, wade or drive through moving flood water; it hides depth, current and debris.
  • Switch off electricity at the mains if you can do so safely.
  • Keep a radio or phone on for official alerts, and keep children and elders together and visible.
After

Once the water recedes

  • Treat all flood water as unsafe to drink until authorities confirm otherwise.
  • Watch for weakened structures, submerged debris, downed wires and displaced animals.
  • Photograph damage before cleanup, for any aid or insurance claims.
  • Check on neighbours, especially elderly residents, children and anyone living alone.
Where the risk concentrates

Flood-prone regions, at a glance

Every monsoon behaves differently, but some regions are consistently more exposed because of their rivers, elevation or coastline. This map is illustrative — for real-time water levels, always check the official Flood Forecasting & Warning Centre linked below.

  • Sylhet & the haor basinLow-lying wetlands that fill quickly with flash floods fed by hill rainfall upstream.
  • Kurigram & SirajganjChar (river-island) settlements along the Jamuna, exposed to erosion and seasonal inundation.
  • Rangpur & northern districtsRegularly affected as upstream flows from neighbouring hills reach the plains.
  • Coastal Barisal & BholaTidal surge and cyclone-driven flooding compound river flooding near the coast.

Schematic only — not to scale or precise boundary. Always defer to official flood bulletins for your area.

Get involved

Two ways to help

Volunteer

Join a local response effort before the next monsoon — evacuation support, shelter setup, or relief distribution.

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Donate

Support relief supplies, transport and shelter costs for families affected by flooding.

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If you're in danger right now

Emergency resources

If you or someone near you is in immediate danger from flood water, contact emergency services first — before browsing any website.

Call now

999 — National Emergency Service

Bangladesh's toll-free, 24/7 line connecting to police, fire and ambulance response.

Official data

Flood Forecasting & Warning Centre

Bangladesh Water Development Board's real-time river and water-level bulletins.

ffwc.bwdb.gov.bd →
Local action

Your Union Disaster Management Committee

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