UVINDEX World Health Organization Scale
1-2
Wear sunglasses on bright days. Use sunscreen in areas which reflects UV radiation.
Low
3-5
Try to take precautions. Stay in shade near midday when the sun is strongest.
Moderate
6-7
Try to reduce time in the sun within three hours of noon, and wear sunglasses.
High Risk
8-10
Do not stay in the sun for long; wear sunglasses. Protect yourself from sunburn.
Very High Risk
11+
Avoid the sun within three hours of solar noon. Protect yourself from sunburn.
Extreme Risk
Further Information © 2017 World Health Organization