babe, just bring a turtleneck and a padded jacket.
I've been to perth and its really not that cold & I
survive with thick layers.
you should be concern for the heat cos it can be ultra hot there
during summers.
perth no doubt is quiet, but there is lots of places to go from
there. drive to freementle.
or find the oldest sleepy town with th oldest tree in
australia.
and do drive to visit the kaola bear zoo, the reserves, the wine
valleys and those lovely omellette breakfast near to shop that
sells hose studels in town.