The Ultraviolet index UVI is a diary forecast, calculated and divulgated with anticipation of 24 hours, the amount of ultraviolet radiation received by the Earth´s surface for most solar lighting, usually located around afternoon.
El índice ultravioleta IUV es un pronóstico diario, calculado y divulgado con 24 horas de anticipación, del monto de radiación ultravioleta que recibe la superficie de la Tierra durante la mayor iluminación solar, generalmente situado alrededor del mediodía.