I'm going to study in Melbourne, Australia this August. Who can tell me what the temperature is in Australia in winter and how thick clothes to bring?

I just got back from Melbourne. The weather in Melbourne has always been four distinct seasons, cold in the morning and evening and warm at noon. The coldest time is about 5 degrees in the morning and evening, but it is also 20 degrees or even 30 degrees in the hottest time at noon. Turn on the heating in the room when it is coldest, or you can't stand it at all If you want to go out sooner or later, you need to wear a sweater and a cotton-padded jacket, but it is estimated that these will be taken off at noon. This is the weather.