So you've decided to visit Australia but aren't sure when you should go? Don't be alarmed! In this blog post, we'll show you when is the Best Time to visit Australia so you can make the most of your vacation. The best time to visit Australia depends on the part of the country you want to visit. Australia is the largest country on the planet, with a wide diversity of climates. Northern Australia has a tropical climate, with hot and humid summers and wet and dry winters, but the southern parts of the country have a milder climate, with moderate and occasionally rainy winters.