by Dr Olivia Hasler1 April
Do you often say “what’s with this weather?”
Even though Tasmania is known for its mild summers, it doesn’t take much to get sunburnt. Tasmania experiences extreme ultraviolet (UV) levels, but contrary to popular belief this isn’t due to the hole in the ozone layer, which is actually south of the continent.While higher UV levels often occur at the same time as higher temperatures, the two are not linked. Instead, UV levels are determined by the angle of the sun in the sky: the higher the sun, the higher the UV. In December and January, the position of the sun over Tasmania gives the state a UV index of 11 or more on most days, which is classified as “extreme” on the UV index. Tasmania’s lack of humidity and generally clear skies contribute to the stinging feeling of the sun. UV can reflect off buildings and water, making it possible to get a higher dose of UV from these reflected rays, even in the shade.