Flood Risk in London, United Kingdom
Risk Level: Extreme — Score 9/10
Key Risk Factors
- High risk rating for London based on ThinkHazard (Coastal flood)
- 44 events recorded in proximity in recent decades
- 4 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
How London Compares
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
How this data is built
London, United Kingdom flood risk combines Historical Event Intelligence with authoritative hazard modeling from the Geospatial Intelligence Layers catalog. Live flood monitoring is available through the Event Intelligence API and the DisasterAWARE Platform.
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