Our forecasts include the real-time UV index, the hourly UV index, and the UV Index forecast for the next five days. Our forecasts are built using data provided by NOAA. Tracking the UV …

Ultraviolet radiation or UV is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight and …

United States UV Index updated daily. Detailed UV forecast charts, with today's ultraviolet radiation in real-time.

The UV Index provides a daily forecast of the expected intensity of UV radiation from the sun. Please enter your ZIP Code, City and State, or have your browser determine your current …

Jul 16, 2025 · Ultraviolet (UV) radiation is a form of non-ionizing radiation that is emitted by the sun and artificial sources, such as tanning beds. While it has some benefits for people, …

2 days ago · The UV Index is a measurement scale used to indicate the intensity of ultraviolet (UV) radiation from the sun at a particular place and time. The values range from 0 to 11 and …

Get the most accurate, real-time UV index for any city in the United States. Check the live hourly UV forecast, understand the UV scale with our detailed chart, and get essential sun safety tips …

The UV Index at any given time is presented as a number ranging from 0 to 14, representing values on a linear scale. A UV Index value of 0 means that there is no UV radiation, and a UV …

Protect Children from UV Rays: Children, the elderly and those with special needs may need special attention or be more sensitive to sun. Children tend to spend more time outdoors, can …

Ultraviolet (UV) radiation comes from the sun and man-made sources like tanning beds. Learn more about UV rays and skin cancer risk here.