Hi, this is my first trip to Perth from 5th - 10th June. I know the June is a winter period so intended to wear sweater during the day and just put on a jacket during the night. But these few days in May the weather during the day was like 30 degree high! So i really got no idea what kind of clothes to bring there. Should i just wear a T-shirt during the day? Is it hot during the day in June?