The ultraviolet (UV) Index is a forecast of the expected intensity of ultraviolet radiation from the sun. It is typically issued daily, providing a numerical value that indicates the level of potential harm from sun exposure. For example, a forecast indicating a value of 7 suggests a high risk of harm from unprotected sun exposure.
Understanding the predicted level of solar UV radiation is essential for planning outdoor activities and mitigating the risk of sunburn, premature skin aging, and skin cancer. These forecasts have become increasingly important as awareness of the damaging effects of prolonged sun exposure grows, prompting individuals and public health organizations to encourage protective measures.
