A typical Aussie summer day can last for up to 8 hours. The weather in the southern hemisphere is typically warm during the day, but cooler at night. That means that a chilly night will be a welcome relief. But what if you live in the northern hemisphere? Do you know what a "real" Aussie summer day is? Find out here. If you love the outdoors, there are a few things you must do to make the most of an Aussie summer day..