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9
Extreme

flood Flood Risk in Lagos, Nigeria

Risk Level: Extreme — Score 9/10

Risk: 9Historical: 10

Key Risk Factors

  • High risk rating for Lagos based on ThinkHazard (River flood)
  • 22 events recorded in proximity in recent decades
  • 2 event(s) in the last 12 months
  • Significant river or coastal flood exposure

Peak season: March-September

Last significant event: Flood - Nigeria (2025-09-25) — 174,000,472 people exposed

Highest Risk Cities for Floods

1
FEMA: 9Historical: 10
2
FEMA: 9Historical: 10
3
FEMA: 9Historical: 10
4
FEMA: 9Historical: 10
5
FEMA: 9Historical: 10
6
FEMA: 9Historical: 10
7
FEMA: 9Historical: 10
8
FEMA: 9Historical: 10
9
FEMA: 9Historical: 10
10
FEMA: 9Historical: 10
Lagos is not in the top 10 for flood risk among tracked cities.

How Lagos Compares

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Notable Flood Events Near Lagos

Floods - Lagos, Nigeria

June 18, 2020 WARNING

Impact data not available

Floods - Lagos State, Nigeria

July 11, 2022 WARNING

Impact data not available

Flood - Nigeria

September 24, 2025 WARNING

174,000,472 people exposed; $504,693M capital exposed

Flood - SE of Oueme Basin, Nigeria

May 24, 2024 WARNING

27,300,000 people exposed; $87,347M capital exposed

Flood - Niger Basin, Benin and Nigeria

September 13, 2023 WARNING

8,570,000 people exposed; $26,875M capital exposed

Flood Preparedness Tips

  • 1.Know if your property is in a flood zone — check FEMA maps
  • 2.Consider flood insurance even if not in a high-risk zone
  • 3.Never drive through flooded roadways — Turn Around, Don’t Drown
  • 4.Move valuables and important documents to upper floors
  • 5.Install sump pumps and check valves in plumbing

Related Pages

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