Most of us realize the sun's effects are strongest around noon, but do really know what "peak hours" are? The Canadian Dermatology Association defines it as the time from 11 am to 4 pm. When ultraviolet readings are high (UV index 6-7) you should reduce exposure to the sun during this time, and take full precautions by wearing sunscreen, a shirt and a wide-brimmed hat. If the UV index reading is very high (8-10) or extreme (11+) it is best to avoid the sun as much as possible from 11 am to 4 pm. Remember, UV readings can be high even if the heat or sun don't seem strong!
Slip, Slop and Slap!
Never leave home without your protection, especially in summer's heat! Even when the UV reading is moderate (UV index 3-5) everyone should wear protection if they expect to be outside for more than 30 minutes. Slip on a shirt, slip on some sunscreen, and slap on a hat! Remember that sunscreen or sunblock are not intended to be your only protection against the sun: it's just one of the tools you should be using every day. Apply according to the label - that means using roughly enough to fill a shot glass, giving it 20 to 30 minutes to absorb into your skin before heading out the door, and re-applying as needed. Even on moderate UV days, seek shade at noon. Bringing along a bottle of water when you step out won't hurt, either.
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