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The UV index is an indicator of the intensity of ultraviolet radiation from the Sun on the earth's surface on a scale that begins at 0 and is not bounded at the top. The UV index also indicates the ability of solar UV radiation to damage the skin.1 The amount of ambient light is not always related to the UV index. It can be misleading.


Since the index and its representation varied depending on the location, the World Health Organization together with the World Meteorological Organization, the United Nations Environment Program and the International Commission on Protection against Non-Ionizing Radiation published a standard system. UV index measurement and a way to present it to the public including an associated color code.

The code can be seen in the following table:


For updated information from the National Meteorology and Hydrology Service of Peru (SENAMHI), please enter the following link

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