The UV Index is a standard measurement of the strength of sunburn-producing ultraviolet (UV) radiation at a particular place and time. Our live tracker helps you practice proper sun safety by providing real-time data and localized forecasts based on your exact location.
The Sun Safety Risk Scale
0-2 (Low): Minimal danger for the average person. Wear sunglasses on bright days.
3-5 (Moderate): Low risk of harm. Apply SPF 30+ sunscreen every 2 hours and wear protective clothing if outside.
6-7 (High): High risk of harm. Reduce time in the sun between 10 AM and 4 PM.
8-10 (Very High): Very high risk. Take extra precautions. Unprotected skin can burn quickly.
11+ (Extreme): Extreme risk of harm. Try to avoid sun exposure completely during peak midday hours.
Frequently Asked Questions
What level of UV index is safe?
A UV index of 0 to 2 is generally considered safe for most people. At this low level, you can safely enjoy being outside with minimal risk of sunburn. However, if you have very sensitive skin, wearing SPF and sunglasses is still recommended.
Is 12 a high UV index?
Yes, a UV index of 12 is considered "Extreme." The standard UV index scale warns of extreme risk of harm from unprotected sun exposure at any level of 11 or higher. At a UV index of 12, unprotected skin can burn in less than 10 minutes.
How can I protect myself from a high UV index?
When the UV index is high (6 or above), protect yourself by applying a broad-spectrum sunscreen of SPF 30 or higher, wearing a wide-brimmed hat and UV-blocking sunglasses, and seeking shade during peak sun hours (typically between 10 AM and 4 PM).
What is the best UV index to tan?
While dermatologists and health organizations warn that any tanning is a sign of UV skin damage, a "Moderate" UV index of 3 to 5 is when skin typically begins to pigment (tan) without immediately burning. If you are outdoors at this level, always apply a broad-spectrum SPF to protect your skin cells from harmful radiation.
What UV index will I tan at?
Your skin will begin to tan at a UV index of 3 or higher. It is a common misconception that you need a very high UV index to tan. At a UV index of 6 or above (High to Extreme), unprotected skin can burn in a matter of minutes before it ever has a chance to tan.