Weather Library
UV Index
| Exposure Category | Index Number | Sun Protection Messages |
LOW | <2 | You can safely enjoy being outside. Wear sunglasses on bright days. If you burn easily, cover up and use sunscreen SPF 15+. In winter, reflection off snow can nearly double UV strength. |
MODERATE | 3-5 | Take precautions if you will be outside, such as wearing a hat and sunglasses and using sunscreen SPF 15+. Reduce your exposure to the sun's most intense UV radiation by seeking shade during midday hours. |
HIGH | 6-7 | Protection against sun damage is needed. Wear a wide-brimmed hat and sunglasses, use sunscreen SPF 15+ and wear a long-sleeved shirt and pants when practical. Reduce your exposure to the sun's most intense UV radiation by seeking shade during midday hours. |
| VERY HIGH | 8-10 | Protection against sun damage is needed. If you need to be outside during midday hours between 10 a.m. and 4 p.m., take steps to reduce sun exposure. A shirt, hat and sunscreen are a must, and be sure you seek shade. Beachgoers should know that white sand and other bright surfaces reflect UV and can double UV exposure. |
EXTREME | 11+ | Protection against sun damage is needed. If you need to be outside during midday hours between 10 a.m. and 4 p.m., take steps to reduce sun exposure. A shirt, hat and sunscreen are a must, and be sure you seek shade. Beachgoers should know that white sand and other bright surfaces reflect UV and can double UV exposure. |
