Because the Earth is tilted on its rotational axis, both the Northern and Southern Hemispheres experience seasons. As the Earth revolves around the Sun, the angle at which sunlight hits each of these hemispheres changes. The Sun appears in the sky and for a period of time each day during summer than it does during winter.

                 

Because the Earth is tilted on its rotational axis, both the Northern and Southern Hemispheres experience seasons. As the Earth revolves around the Sun, the angle at which sunlight hits each of these hemispheres changes. The Sun appears at its highest point in the sky and for a brief period of time each day during summer than it does during winter.