9
Extreme
Flood Risk in Honolulu, HI
Risk Level: Extreme — Score 9/10
FEMA: 9Historical: 10
Key Risk Factors
- FEMA rates Honolulu's county as Very High risk for this hazard
- Estimated annual loss of $330M from this hazard type
- 124 significant events recorded in proximity since 1950
- 36 events in the last 12 months indicate ongoing risk
- Average annual frequency: 5.9 events per year
Peak season: March-September
Last significant event: Flood - Urban Honolulu, HI Region, United States (2024-10-26) — 633,000 people exposed
Highest Risk Cities for Floods
Honolulu is not in the top 10 for flood risk among tracked cities.
How Honolulu Compares
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Notable Flood Events Near Honolulu
Flood - Urban Honolulu, HI Region, United States
May 18, 2024 — WARNING
923,000 people exposed; $524,641M capital exposed
Flood - Urban Honolulu, HI Region, United States
May 18, 2024 — WARNING
Impact data not available
Flood - Urban Honolulu, HI Region, United States
October 25, 2024 — WARNING
633,000 people exposed; $413,147M capital exposed
Flood - Urban Honolulu, HI Region, United States
October 25, 2024 — WARNING
633,000 people exposed; $413,147M capital exposed
Flood - Urban Honolulu, HI Region, United States
December 20, 2023 — WARNING
504,000 people exposed; $294,496M 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
Earthquake Risk in Honolulu
Score: 7/10
Wildfire Risk in Honolulu
Score: 7/10
Hurricane Risk in Honolulu
Score: 3/10
Tornado Risk in Honolulu
Score: 3/10
Winter Storm Risk in Honolulu
Score: 5/10
Landslide Risk in Honolulu
Score: 7/10
Extreme Heat Risk in Honolulu
Score: 0/10
Drought Risk in Honolulu
Score: 1/10
High Wind Risk in Honolulu
Score: 1/10
Tsunami Risk in Honolulu
Score: 7/10
Flood Risk in San Francisco, CA
Score: 7/10
Flood Risk in Oakland, CA
Score: 9/10
Flood Risk in San Jose, CA
Score: 9/10
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