The sheer size of Australia means there is a wide variation in climate. These range from a ‘wet’ and a ‘dry’ season in the tropical north, an area that is also prone to cyclones to the outback ‘the Red Centre’ that experiences blistering temperatures with severe droughts. At the same time down south in Tasmania, an icy breeze from Antarctica can prevail – So planning your holiday is essential.
When the ski season kicks off in the Northern Hemisphere, Australia starts to bask in the Southern Hemisphere's summer. Midwinter in Australia is July and August, and the hottest months by far are November through March. But remember, unlike in the northern hemisphere, the further south you go in Australia, the colder it gets… When is the Best Time of Year to visit Australia?
The best time to visit the great northern states of the country, including nearly all of the outback and the Great Barrier Reef is in winter (June to September). Temperatures range from 70 °F (21°C) and 80 °F (26°C) typically clear and dry. This would include the cities of Alice Springs, Cairns, and Darwin.
Weather-wise, the best time to visit Tasmania located in the extreme south is the summer (December to February). During these months most of the rest of the country is hot to very hot. The outback is baking and the North is experiencing tropical rain and is unpleasantly sticky and humid. The southeastern cities of Sydney and Melbourne typically enjoy nice hot summer but be warned it can get very hot in those places on the odd occasion. Late spring - (November to early December) and early autumn (March to April) are probably the best times to visit Melbourne and Sydney.