"Goldilocks weather"—not too hot, not too cold. The oppressive humidity of the north finally breaks, and the scorching heat of the south dissipates. It is the perfect window for hiking and outdoor exploration.
However, to say "Australia has four seasons" is an oversimplification. The country is so vast—roughly the same size as the contiguous United States—that it spans multiple climate zones. From the tropical monsoons of the north to the cool, windy vineyards of the south, and from the arid nothingness of the Outback to the temperate rainforests of Tasmania, the Australian weather experience varies wildly depending on where and when you visit. weather in australia seasons
The south gets cold, but rarely "freezing" by northern European standards (except for Canberra). The north enters its "Dry Season," which is actually the most beautiful time of year there. "Goldilocks weather"—not too hot, not too cold