Australia is vast, so summer conditions vary dramatically:
Usually the hottest month of the year across much of the continent. It is also the height of the school holiday season, making it a busy time for domestic travel. summer in australia months
Summer in Australia is officially defined by the calendar as the months of December, January, and February . This is opposite to the Northern Hemisphere, where summer falls in June, July, and August. Because Australia is in the Southern Hemisphere, its seasons are reversed. Australia is vast, so summer conditions vary dramatically:
Sunny, warm, and occasionally hit by dry heatwaves from the interior. 20°C to 30°C+ (68°F–86°F+) (Cairns, Darwin, Broome) Australia is vast