The hottest parts of Australia in December are the northern and central regions, where temperatures can reach up to 40°C (104°F). The coolest parts of the country are the southern and southeastern regions, where temperatures can drop to as low as 10°C (50°F).
December is a popular time to visit Australia, as the weather is ideal for outdoor activities such as swimming, sunbathing, and exploring the country's many national parks. However, it is also important to be aware of the potential for heatwaves, bushfires, and cyclones during this time of year.