0-20

0-2

Low

• No special protective measures required.

21-35

3-5

moderate

• Seek shade during midday hours when staying outdoors
• Use a sunscreen lotion that can block both UVA and UVB (with SPF 15 and PA+, or above)
• Wear long-sleeved and loose-fitting clothing, wear a broad brim hat, use an umbrella, wear sunglasses

36-45

6-7

High

46-55

8-10

Very high

• Avoid being outdoors in the sun during midday hours
• If you must stay outdoors, seek shade
• Use a sunscreen lotion that can block both UVA and UVB (with SPF 15 and PA+, or above)
• Wear long-sleeved and loose-fitting clothing, wear a broad brim hat, use an umbrella, wear sunglasses

>=56

>=11

Extreme