We are heading over to Australia for the month of October. We have never been there before and have no idea what to expect weather-wise. We will be in Perth for the first while, where hubby has work meetings. The remainder of our time will be spent completely on the other coast in Port Douglas, Sydney, and Melbourne. Can anyone give us some idea of what we will need to wear/pack at this particular time of year? We realize that Port Douglas will be very warm and tropical, but what about the other locations? Any help or tips would be so appreciated.