My wife and I are flying to AU in late March and be in country thru early April. We are flying into Sydney and spending a day or so and then boarding the Indian Pacific to Perth and again spending a day of so and flying onto Darwin. There we will spend another day and board the Ghan to Adelaide. We will be traveling light and wondered what we should be expecting in regard to temperatures...we don't want to take more clothes than needed. That late in the season should we be looking at shorts and tees or trousers and long sleeves? Sun screen or rain gear? Shoes or sandals? Any suggestions welcomed.

Thanks,
Wiley