Summer transitions into autumn as part of the seasonal cycle due to the Earth’s tilt and orbit around the sun.
As the Earth orbits the sun, the tilt of its axis causes different parts of the Earth to receive varying amounts of sunlight throughout the year. This variation in sunlight is what drives the change of seasons. Summer occurs when the hemisphere (either the Northern or Southern) is tilted toward the sun, resulting in longer days, shorter nights, and typically warmer temperatures due to the more direct sunlight.
As the Earth continues its orbit, the angle of tilt relative to the sun changes, and the hemisphere that was once leaning towards the sun begins to lean away. This gradual shift leads to a decrease in daylight hours and a drop in temperature, marking the transition from summer to autumn, also known as fall. During autumn, the sun’s rays become less direct, and the environment begins to cool, leading to the characteristic changes in the landscape, such as leaves changing color and eventually falling from deciduous trees.
The progression from summer to autumn is a natural part of the annual seasonal cycle. In the Northern Hemisphere, this transition typically begins in September and in the Southern Hemisphere in March. The exact timing of the seasons can vary slightly from year to year due to the Earth’s elliptical orbit and other complex factors that influence climate and weather patterns.
