What is the normal range of UV index that indicates the need for sun protection?

The normal range of the UV index that indicates the need for sun protection starts at a value of 3 or higher. At this level, the risk of harm from unprotected sun exposure increases. When the UV index reaches 3, it signals that sun protection is necessary to mitigate the likelihood of skin damage. This includes actions such as applying sunscreen, wearing protective clothing, and seeking shade, especially during midday hours when the sun's rays are the strongest.

A UV index of lower than 3 typically indicates a minimal risk, and therefore, sun protection is generally not considered necessary. The classifications reflect a growing level of risk, where a higher UV index calls for more stringent protective measures. Knowing this helps individuals take appropriate actions to protect their skin and overall health from UV radiation.