I lived in the topics of Australia for 8 years - It isn't bad! :D
The problem comes whenever they have to travel to any Spanish city in the peninsula during the winter and they freeze!!!!
One of my brothers lives there still and once when I was visiting many years ago in the south and they met us - my girlfriend and I were swimmin in +32 temperatures and he was wrapped in a blanket sitting on the beach - and he was once a surfer in the south! :D
It is all about conditioning.