People in Australia celebrate Christmas in summer because December falls during the summer season in the Southern Hemisphere. Since Australia is located in the Southern Hemisphere, it experiences summer during the months of December, January, and February. This is due to the tilt of the Earth’s axis, which causes the seasons to be opposite in the Northern and Southern Hemispheres. So, while people in the Northern Hemisphere experience winter during December, people in the Southern Hemisphere experience summer, making it a perfect time for outdoor activities and celebrations.
