Something is quite impressive in Australia, the strength of the sunlight. When we are under sun exposure for a couple of minutes, we quickly feel the strong bite of the sun on our skin. This is not surprising when we look at the uv index down here. For example today Sunday as well as tomorrow Monday, the uv index in Sydney under sunlight is 11. That corresponds to a level judged as extreme. Today it was 9 under cloud, what is already rated as very high.
More info on the uv index:
http://www.uv-index.ch/de/uvindex.html