The sun produces visible and invisible light. Exposure to the invisible kind, ultraviolet A and ultraviolet B (UVA and UVB), is never safe and is responsible for skin cancers, cataracts, sunburn and premature skin ageing. That's why it's important to limit exposure to UV rays all year. While UV ray intensity tends to be highest in the summer, experts say there is no 'safe' UV exposure. UV radiation can damage the body any time of year, even when it's cloudy.
The answer? For adults and children over six months old, experts recommend sunglasses, covering up with clothes, and a generous and regular application of sunscreen with a UVA and UVB sun protection factor (SPF) of at least 15. Babies under 6 months old should be kept out of direct sunlight