Australia
Explanation
The occurrence of seasons is determined by the Earth's revolution around the Sun and the permanent tilt of its axis (approx. 23.5°). This orientation causes the seasons in the Northern and Southern Hemispheres to be reversed. December corresponds to the winter solstice in the Northern Hemisphere and the summer solstice in the Southern Hemisphere.
Geographical Analysis:
- Northern Hemisphere: The United Kingdom, USA, and India are located in the Northern Hemisphere. During December, this hemisphere is tilted away from the Sun, resulting in the winter season. Consequently, Christmas (December 25) is celebrated during cold weather.
- Southern Hemisphere: Australia is located in the Southern Hemisphere. During December, the South Pole is tilted towards the Sun, and the region receives high insolation. This period marks the summer season in the Southern Hemisphere. Therefore, Christmas is celebrated during the summer.
Key Takeaway:
Due to the reversal of seasons between hemispheres, countries in the Southern Hemisphere (e.g., Australia, New Zealand, South Africa) experience summer during December, while the Northern Hemisphere experiences winter.