Is UV 11 the highest UV index?

No. UV readings above 11 occur regularly in equatorial regions, high altitudes (e.g., Andes, East African highlands), and reflective environments. Readings of 14-16 have been recorded in Peru and Bolivia.

How fast do you burn at UV 11?

Type I (very fair) skin burns in approximately 4 minutes. Type II burns in about 6 minutes. Even Type III (medium) skin can burn in 12-14 minutes without protection.

What does extreme UV feel like?

You may not feel UV 11 as heat -- UV radiation is invisible. You can burn severely on a cool, windy day. The absence of heat sensation does not mean safety.

UV Index 11

Extreme risk. Unprotected skin can burn in under 5 minutes.

UV index 11 is classified as Extreme. Extreme risk. Unprotected skin can burn in under 5 minutes. See burn times by skin type, protection advice, and FAQs