Overview

• Satellite-based analysis evaluated surface sealing, green space and land surface temperature across 190 German cities with more than 50,000 residents.
• The report classifies 31 cities as red for high heat load, 131 as yellow and 28 as green based on heat stress indicators.
• Cities in southern Germany, including Mannheim, Ludwigshafen and Worms, rank worst with up to 91 percent of residents affected.
• Northern regions fare comparatively well, with Hamburg among green-rated cities and several Lower Saxony and Schleswig-Holstein municipalities earning favorable marks.
• All six Saxony cities received yellow cards for moderate heat load and three Franconian cities—Aschaffenburg, Nuremberg and Fürth—are among Bavaria’s red-rated locations.