Emergency notification system
for extreme temperatures

About the Service

EXTREMA uses real-time satellite data, along with other model and city-specific data to estimate the temperature, humidity, and discomfort index for every square kilometer in the city. Temperature estimates are updated every 5 minutes, providing data at a spatial and temporal resolution that is not available from any other service.


Our partners.

Amazing Features

We've got lots of useful features.

Personalized Risk

Through the EXTREMA mobile application, citizens receive a personalized heat stress risk for their current location and recommendations on measures to reduce their risk.

Cooling Centers

The EXTREMA app provides navigation information, by foot or public transit, to the nearest cooling center and helps you choose the right one for you.

Multiple Profiles

The app supports multiple users. This is so useful when you want to check the elderly, just enter their profile and location and get their extreme temperature risk estimation.

Satellite Based

City authorities will get real-time images/maps of extreme temperature hazard distribution in their city, together with other relevant variable, like humidity and discomfort index

Next Day Alerts

City authorities will get a one day advance alert for expected extreme temperatures (based on meteoalarm.eu) to allow for proper respond and management of the cooling centres.

City Dashboard

Cities will receive an information management tool for the cooling centers, including the ability to change opening hours, capacity, contact information, and add more centers in a particular area.


EXTREMA is a DG ECHO funded project, 2018-2019, GA 783180.

Contact us

We are happy to hear from you! Contact us today and join our city network! Get your City on board!

Extrema Coordinator

Iphigenia Keramitsoglou
National Oservatory of Athens

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