Cooler climate

Thanks iserbrown and Afraser for your advice.  I have visited Tasmania a few times in different seasons, approximately 1 week at a time, and find that I handle it alright and expect that I should adjust to the temperature alright, though I do worry about things like black ice.  

My husband is from Tasmania and would love to move back, although things like arthritis are a worry to him.  We are from regional Queensland, not coastal, so we are used to temperature variations.  I found winter in Queensland quite comfortable post-surgery and never used to have trouble with the heat, but now I do, and I worry about the cost of using air-conditioning.