DisasterAWARE
9
Extreme

flood Flood Risk in San Jose, Costa Rica

Risk Level: Extreme — Score 9/10

Risk: 9Historical: 10

Key Risk Factors

  • High risk rating for San Jose based on ThinkHazard (River flood)
  • 28 events recorded in proximity in recent decades
  • 1 event(s) in the last 12 months
  • Largest recent event exposed 5,079,760 people
  • Significant river or coastal flood exposure

Peak season: March-September

Last significant event: Flood- Costa Rica (2025-07-29) — 5,079,760 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
San Jose is not in the top 10 for flood risk among tracked cities.

How San Jose Compares

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Notable Flood Events Near San Jose

Flood- Costa Rica

July 28, 2025 WARNING

5,079,760 people exposed; $140,172M capital exposed

Flooding/Rain - Costa Rica

August 18, 2013 WARNING

Impact data not available

Flood - N of Heredia, Heredia, Costa Rica

February 20, 2024 WARNING

112,000 people exposed; $1,863M capital exposed

Floods - Costa Rica

July 29, 2012 WARNING

Impact data not available

Floods - Costa Rica

October 16, 2011 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

San Jose, Costa Rica 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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