Europe's May 2026 Heatwave: Map of Hot Surfaces | ESA Sentinel-3 Earth Satellite
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Europe is in the middle of a heatwave with record air temperatures for May in many countries making it feeling more like the height of summer, rather than late spring. For example, the UK recorded an air temperature of 35ºCelsius this week, 2ºC higher than the country’s previous high for this month, while Ireland’s air temperature also rose more than a degree above its record for May. The Hungarian weather service, HungaroMet, announced on Monday, May 25, 2026, that Budepest’s temperature record had reached a new high of 32.2ºC. And in southern and central Europe, Italy, Spain, Germany and Switzerland also registered unseasonably hot air temperatures.
The heatwave is reflected in this satellite image. It shows daytime land surface temperatures. During summer, daytime land surface temperatures can be considerably higher than air temperature with surfaces such as rock and soil retaining heat.
The image was captured by the Copernicus Sentinel-3 Mission on Tuesday, May 26, 2026. Sentinel-3’s radiometer captures data over land and sea. Over continents, it is able to monitor land surface temperatures and can be used to monitor wildfires, map how land is used and the state of vegetation, as well as measure the height of rivers and lakes.
United Nations: What is Climate Change?
https://www.un.org/en/climatechange/what-is-climate-change
Learn more about the European Space Agency's Copernicus Earth Observation Program:
https://sentinel.esa.int/web/sentinel/copernicus/
Image Date: May 26, 2026
Release Date: May 27, 2026
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