Ultraviolet Index (UVI)

The Ultraviolet Index (UVI) is a measure of how strong the sun’s ultraviolet (UV) rays are at a particular location and time. It helps people understand the potential risk of skin and eye damage from sun exposure. The scale ranges from 0 (minimal UV risk) to 11+ (extremely high). A higher UVI indicates a greater chance of harm, so precautions like sunscreen, sunglasses, or seeking shade are recommended. The UVI varies by factors such as time of day, season, altitude, and cloud cover, and helps you make informed decisions to protect your health outdoors.