Water Quality Warnings in Costa Rica
Water Quality Warnings for Costa Rica (Central America) come from Instituto Meteorológico Nacional (IMN), Comisión Nacional de Prevención de Riesgos y Atención de Emergencias (CNE). This page explains what these warnings mean, which authority publishes them, and how to check the current status for San José.
Check live drinking status for San JoséBrowse all warnings
At a glance
- countryCosta Rica · North America
- reference citySan José (9.93, -84.08)
- emergencyPrimary emergency number911
- risk profilestorm, flood, landslide, earthquake, volcano, tsunami, drought
What counts as a water quality warnings
Water quality warnings include boil-water notices, bathing bans and advisories for lakes, rivers and coasts after contamination or heavy rain. They are issued by water utilities and environment agencies, and are usually limited to a specific supply zone or beach section.
Who issues water quality warnings in Costa Rica
- meteoInstituto Meteorológico Nacional (IMN)
- civilComisión Nacional de Prevención de Riesgos y Atención de Emergencias (CNE)
Warning levels, colours and terminology are set nationally. Always read the warning text of the issuing authority: it names the affected districts, the expected time window and the recommended action.
If a warning is active in Costa Rica
- Boil water for at least one minute, or use bottled water, during a boil-water notice.
- Respect bathing bans - they follow measurements, not appearance.
- Do not swim for 24-48 hours after heavy rain near storm overflows.
Where the data comes from
Waarning reads public, key-free sources for Costa Rica: national water utilities, environment agencies, EEA bathing water data, WHO. Measurements and official warnings are shown separately, and official warnings always keep the name of the authority that issued them.
Frequently asked questions
Who issues water quality warnings in Costa Rica?
Instituto Meteorológico Nacional (IMN), Comisión Nacional de Prevención de Riesgos y Atención de Emergencias (CNE). Waarning does not issue warnings; it aggregates the public feeds of these bodies and links back to the original source.
What is the emergency number in Costa Rica?
The primary emergency number is 911. Use it for a life-threatening situation; for non-urgent reports use the local police station number.
Does Waarning show live water quality warnings for Costa Rica?
Yes. The dashboard loads the current values for San José from national water utilities, environment agencies, EEA bathing water data, WHO. You can open it with one click and the location is already set.
More warnings for Costa Rica
- Severe Weather Warnings
- Flood Warnings
- Drought Warnings
- Air Quality Warnings
- Earthquake Alerts
- Volcano Alerts
Water Quality Warnings in nearby countries
Generated 2026-10-14. Waarning is not an official warning service; in an emergency follow local authorities and emergency services.