The UV index represents the amount of UV radiation that reaches the ground and ultimately puts us at risk. * See table below* This weekend in southern California we are at a UV index number of 12! Meaning, this weekend we have an extreme risk for over exposure to UV radiation. At this extreme level it will only take four minutes to get sunburned! Even if the temperature is not too high or it is cloudy, this risk to exposure still applies.
According to the US Environmental Protection Agency, you should try to avoid sun exposure mid day, wear a hat and plenty of sunscreen. To find out what the UV index number in your area is visit the EPA’s website: http://www.epa.gov/sunwise/uvindex.html