| Index | Description | Protection |
|---|
| 0-2.9 | Low danger from the sun's UV rays for the average person | Wear sunglasses on bright days; use sunscreen if there is snow on the ground, which reflects UV radiation, or if you have particularly fair skin. |
| 3-5.9 | Moderate risk of harm from unprotected sun exposure | Take precautions, such as covering up, if you will be outside. Stay in shade near midday when the sun is strongest. |
| 6-7.9 | High risk of harm from unprotected sun exposure | Wear sunglasses and use SPF 30+ sunscreen, cover the body with sun protective clothing and a wide-brim hat, and reduce time in the sun within three hours of solar noon. |
| 8-10.9 | Very high risk of harm from unprotected sun exposure | Wear SPF 30+ sunscreen, a shirt, sunglasses, and a hat. Do not stay in the sun for too long. |
| 11+ | Extreme risk of harm from unprotected sun exposure | Take all precautions: Wear sunglasses and use SPF 30+ sunscreen, cover the body with a long-sleeve shirt and trousers, wear a very broad hat, and avoid the sun from three hours before until three hours after solar noon. |
| | Source Wikipedia |
