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page last modified:
May 2017
     

Clear-sky UV index forecast

The clear-sky UV index is a measure for 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, i.e. when the sun is highest in the sky. Forecasts are provided for today and the next few days.

Today -- Europe Today -- World
UV index UV index
Today -- The Netherlands Today -- Dutch Caribbean
UV index UV index
 
Data:   Today and coming days at your location

Maps:  Europe  |  Netherlands  |  Dutch Caribbean  |  World

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Archives

version 2.0:
 
Erythemal UV index
 
UV index timeseries at selected locations
 
Overview of all archives
 
versions 1.2-1.4:
 
Overview of all archives
 
 

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