UV Value and Category

1-2 
("Low")

A UV Index reading of 2 or less means low danger from the sun's UV rays for the average person:

• 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.

3-5
("Moderate")

A UV Index reading of 3 to 5 means moderate risk of harm from unprotected sun exposure.

• 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.

6-7
("High")

A UV Index reading of 6 to 7 means high risk of harm from unprotected sun exposure. Protection against sun damage is needed.

• 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.

8-10
("Very High")

A UV Index reading of 8 to 10 means very high risk of harm from unprotected sun exposure. Protection against sun damage is needed. 

• 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.

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  Beachgoers should know that white sand and other bright surfaces reflect UV and can double UV exposure.

11+
("Extreme")

A UV Index reading of 11 or higher means extreme risk of harm from unprotected sun exposure. Try to avoid sun exposure during midday hours, from 10 a.m. to 4 p.m. Apply sunscreen with an SPF of at least 30 liberally every 2 hours.

• 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.