Explore indicative flood-risk scores across Lagos and flood-exposed cities worldwide.
The public map helps you understand the relative flood exposure of an area. A property's actual risk depends on its specific terrain, drainage network, infrastructure condition, surrounding water pathways and how the site responds during heavy rainfall. Scores provide a consistent comparative indicator of flood exposure across the locations represented on the map. They are not forecasts of a specific flood event and should not be interpreted as engineering-level property assessments.
Relative flood exposure across an area — the view on this page.
Your site's specific terrain, drainage network and infrastructure condition.
Direct, ongoing observation of the infrastructure that influences your risk.
Each area carries an indicative flood-risk score from 0 to 100 — higher means greater likely exposure during heavy rainfall. The score blends four kinds of signal:
Low-lying and reclaimed ground drains slowly and holds water longer.
Closeness to the lagoon, rivers and the coast raises surge and backflow risk.
Areas facing intense, sustained wet-season rainfall score higher.
A record of past flooding is a strong signal of recurring exposure.
Scores are indicative and based on available environmental, geographic and historical data. They describe area-level risk — not the condition of any specific property.
Risk varies sharply by terrain, drainage age and proximity to water — a generalised view across Lagos corridors.
Exposed to tidal surge, sea-level rise and compound rainfall events on Lagos's high-value waterfront.
Basin releases and backflow along lagoon fringes and river corridors drive rapid, deep inundation.
Dense, older districts where aging and undersized drainage struggles with peak rainfall.
Growth fronts where development has outpaced drainage capacity and permeable ground.
Established estates with functional but pressure-tested drainage during heavy storms.
Higher-ground districts with a natural runoff advantage and comparatively lower exposure.
From Lagos to the wider world — a decade of flooding that keeps arriving faster and hitting harder.
Nigeria's worst flooding in about 40 years: 363 deaths, over 2 million people displaced and roughly 7 million affected across 30 states.
Heavy rainfall combined with high lagoon tides that slowed drainage across Ikoyi, Victoria Island and Lekki, submerging high-value waterfront property.
Record rainfall and Lagdo Dam releases drove one of Nigeria's most severe seasons — 662 deaths and about 2.4 million displaced, per NEMA.
NEMA again warned of high flood risk as renewed flooding and displacement hit multiple states through the rainy season.
The Mokwa disaster in Niger State killed over 150 people — some estimates far higher — and displaced thousands, showing how fast heavy rainfall overwhelms drainage.
Slow-moving storms dumped record rainfall over Germany and Belgium, killing more than 200 people — about 184 in Germany and 38 in Belgium — and wrecking homes, roads and rail.
Extreme monsoon rain and glacial melt submerged roughly a third of the country, affecting 33 million people, killing about 1,700 and causing over $30 billion in damage and losses.
Storm Daniel's rainfall burst two dams above Derna, sending a wall of water through the city. Death-toll estimates ranged from around 4,500 confirmed to about 11,300, with tens of thousands displaced.
A DANA storm dropped a year's worth of rain in hours across Valencia on 29 October, killing about 224 people — Spain's deadliest floods in decades — with losses estimated in the tens of billions of euros.
Figures are indicative and drawn from public reporting by national agencies (NEMA, NiMET), UN OCHA / ReliefWeb, Copernicus, the WMO, the World Bank and verified news records. They describe national and regional impact and are not property-specific.
The public map shows regional risk. FlowGuard goes further with property assessments, infrastructure intelligence and continuous Sentinel monitoring.