Flood Risk in Johannesburg, South Africa
Risk Level: Extreme — Score 9/10
Key Risk Factors
- High risk rating for Johannesburg based on ThinkHazard (River flood)
- 13 events recorded in proximity in recent decades
- 1 event(s) in the last 12 months
- Significant river or coastal flood exposure
Peak season: March-September
Last significant event: Floods - Gauteng Province, South Africa (2022-02-18)
Highest Risk Cities for Floods
How Johannesburg Compares
Notable Flood Events Near Johannesburg
Floods - South Africa
December 8, 2019 — WARNING
Impact data not available
Floods - South Africa
February 9, 2020 — WARNING
Impact data not available
Floods - Gauteng Province, South Africa
February 17, 2022 — WARNING
Impact data not available
Floods - South Africa
November 23, 2020 — WARNING
Impact data not available
Floods - Gauteng Province, South Africa
February 5, 2022 — 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
Johannesburg, South Africa 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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