Heatwave Index (UTCI)

European forecasts of the Universal Thermal Climate Index (UTCI) for the assessment of the human body’s comfort to heatwave-induced thermal stress.

Description & Technical Information


The UTCI (Universal Thermal Climate Index) is a thermal comfort indicator. Defined as an equivalent temperature, it represents the thermal stress induced by the atmospheric environment on the human body. The UTCI is represented via a 10-level scale ranging from extreme cold stress to extreme heat stress. Each thermal stress level is associated to a specific and well-defined physiological response.

Technical information

Coverage Europe
Horizon 10 days
Time Resolution 6 h
Spatial Resolution 18 km
Update 12 h
Nature Raster Maps
Availability , , ,

Model or Algorithm