
The Copernicus Climate Change Service (C3S) helps experts explore how temperature and humidity affect virus spread.
The European Centre for Medium-Range Weather Forecasts (ECMWF) developed the Monthly Climate Explorer for COVID-19. The applications is available on ECMWF's Climate Data Store (CDS), which is part of the Copernicus Climate Change Service (C3S). It allows users to explore the relations between the spread of the SARS-COV2 virus and atmospheric and environmental variables. Average air temperature and humidity of the most recent months are plotted alongside climatological air pollution levels from the Copernicus Atmosphere Monitoring Service (CAMS) and the mortality data obtained from Johns Hopkins University.

“The application allows health authorities and epidemiology centres to explore the claims that temperature and humidity could affect the spread of coronavirus”
Carlo Buontempo, Director of Copernicus Climate Change Service (C3S), at ECMWF


A screenshot from the application, showing COVID-19 mortalities and worldwide temperature for March 2020. White areas show regions where climate conditions are considered to be more conducive to the spread of coronavirus.
A screenshot from the application, showing COVID-19 mortalities and worldwide humidity for March 2020. White areas show regions where climate conditions are considered to be more conducive to the spread of coronavirus.


