Average annual days above 30C across Europe's NUTS 2 regions, from Copernicus Climate Data Store (ERA5-Land). Pan and zoom the map to compare Italy against Spain, France, Portugal, Greece, the UK and Albania.
How it’s built. Mean number of days per year with a daily maximum 2m temperature of 30C or more, averaged across 2015-2024 and across every ERA5-Land grid cell inside each NUTS 2 region's own boundary. Same ten-baseline-year window and CDS cost-cap reasoning as the comune-grain layer of the same name — see scripts/etl/era5.py's own docstring.