The ultraviolet index, or UV index, is an international standard measurement of the strength of the sunburn -producing ultraviolet (UV) radiation at a particular place and time. It is primarily used …

Feb 12, 2024 · The ultraviolet (UV) index is a number on a scale from 1-11+ that tells you how intense the UV rays from the sun are predicted to be at a particular time and place.

Dec 28, 2016 · A UV Index reading of 11 or more means extreme risk of harm from unprotected sun exposure. Take all precautions because unprotected skin and eyes can burn in minutes.

Sep 22, 2025 · The UV Index measures the ultraviolet radiation coming from the sun. There are three primary types of UV radiation: ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C …

Apr 23, 2025 · What's The UV Index? Think of the UV Index as your personal sun-safety alert system: It measures how strong the sun’s ultraviolet rays are and how quickly they can …

Aug 12, 2025 · The UV Index (or UVI) is a standard, international measure of ultraviolet radiation. Values start at zero and can rise above 10.

Jun 20, 2022 · The UV Index is an important vehicle to raise public awareness of the risks of excessive exposure to UV radiation, and to alert people about the need to adopt protective …

Jun 17, 2025 · In daily weather forecasts, you may increasingly notice a value called the UV Index – alongside temperature, cloud cover, or wind speed. This growing visibility reflects rising …

Nov 11, 2025 · The ultraviolet (UV) index measures daily sun radiation levels. Understanding what it means can help you plan outdoor activities safely. What Does Each UV Index Level …

Aug 1, 2025 · One of the most important tools for sun safety is the UV index, a simple number that tells you how strong the sun’s ultraviolet (UV) radiation is on any given day. This guide will …