Disclosed is an urban heat relief installation that makes it possible to address the phenomenon of urban heat islands and to improve the comfort of pedestrians in private and public spaces. The installation comprises a water-retaining surface layer (70) arranged in an area (2) in which heat-relief is sought, a water-distribution network (60), a water-supply system (30) connected to the water distribution network (60), a control system (40) designed to control the water-supply system (30) in order to authorize or not the supply of water to the water-distribution network (60); the control system (40) comprises at least two separate sensors (50) designed to measure two different climate parameters in the surroundings of the installation (1).
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