It snows occasionally near where my horse is. And there are often heavy frosts. It can get wet sometimes for extended periods, and if the horses can't dry off rain scald can spread.
I didn't rug my horse for a week when she was injured and she starting dropping condition pretty quickly.
I guess to the rest of the world, it probably seems like its always summertime in Australia... which I guess is true to an extent, but I think its cold enough to rug
On the subject of Australia, I saw a snake today. Red bellied black snake, it was huge! I thought it was a bit of rubber piping at first. I tried to take pictures with my phone but they didn't come out well