DisasterAWARE
Explore Hazard Data
9
Extreme

flood Flood Risk in London, United Kingdom

Risk Level: Extreme — Score 9/10

Risk: 9Historical: 10

Key Risk Factors

  • High risk rating for London based on ThinkHazard (Coastal flood)
  • 20 events recorded in proximity in recent decades
  • 2 event(s) in the last 12 months
  • Largest recent event exposed 15,200,000 people
  • Significant river or coastal flood exposure

Peak season: March-September

Last significant event: Flood - London, England, United Kingdom (2026-01-04) — 15,200,000 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
London is not in the top 10 for flood risk among tracked cities.

How London Compares

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Notable Flood Events Near London

Flood - London, England, United Kingdom

January 3, 2026 WATCH

15,200,000 people exposed; $3,014,398M capital exposed

Floods - England, United Kingdom

July 25, 2021 WARNING

Impact data not available

Floods - Southeast England, United Kingdom

July 19, 2018 WARNING

Impact data not available

Floods - South-central England, United Kingdom

December 28, 2020 WARNING

Impact data not available

Floods - Anglian Region, United Kingdom

November 23, 2014 WARNING

Impact data not available

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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