UV index forecast and archives

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.

Data:  Today and coming days at your location

Maps:  Europe | Netherlands | World

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Archives

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

Related information

• Introduction to UV index and UV dose

• Structure and reading of the HDF data files

• Measured UV index at Bilthoven, the Netherlands (in Dutch)

• Publications:
  • An Empirical model to predict the UV-index based on Solar Zenith Angle and Total Ozone
    M. Allaart, M. van Weele, P. Fortuin and H. Kelder,
    Meteorological Applications (Royal Met. Society), 2004, doi:10.1017/S1350482703001130.

  • Extreme sunbathing: Three weeks of small total O3 columns and high UV radiation over the southern tip of South America during the 2009 Antarctic O3 hole season
    de Laat, A. T. J., R. J. van der A, M. A. F. Allaart, M. van Weele, G. C. Benitez, C. Casiccia, N. M. Paes Leme, E. Quel, J. Salvador, and E. Wolfram,
    Geophys. Res. Lett., 37, L14805, 2010, doi:10.1029/2010GL043699.

  • Surface UV radiation monitoring based on GOME and SCIAMACHY
    J. van Geffen, R. van der A, M. van Weele, M. Allaart and H. Eskes,
    in: Proceedings of the ENVISAT & ERS Symposium, 6-10 September 2004, Salzburg, Austria, ESA publication SP-572, 2005.
               View abstract & download paper and presentation

  • L'Oréal and Solar Ultraviolet Radiation
    François Christiaens,
    in: Proceedings of the ENVISAT & ERS Symposium, 6-10 September 2004, Salzburg, Austria, ESA publication SP-572, 2005.
               View abstract & download paper and presentation