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UV index forecast and archives

European Space Agency


page last modified:
March 2010

Clear sky UV index forecast

The clear-sky UV index is the effective UV irradiance (1 unit equals 25 mW/m2) reaching the Earth's surface. The clear-sky UV index is based on the CIE action spectrum for the susceptibility of the caucasian skin to sunburn (erythema) and it is valid for cloud-free conditions at local solar noon. Forecasts are provided for today and the next few days.

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UV index UV index
Data:  Today and coming days at your location

Maps:  Europe | Netherlands | World

Archives (v1.2-1.4):

UV index maps | UV index timeseries at selected locations | All archives

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