We did our validation trip in october 2014. The weather was changeable but warm. The first day was 35 deg which was a shock to our system (a welcome shock.) Our PP meet up in Kings Park was hampered by heavy rain but we did get to meet some lovely folks. All in all we had shorts, t-shirts and hoodies - at times- and were more than comfortable. We flew with Etihad via abu dhabi and could not fault the flight. Enjoy your trip !