The four seasons—spring, summer, autumn (fall), and winter—are part of the Earth’s natural cycle, caused by the tilt of the planet’s axis and its orbit around the Sun. Each season brings different weather patterns, temperatures, and daylight hours, which have a profound impact on life on Earth, from plant growth to animal behavior and human activities. Below, we explore how each season affects the environment and what makes each one unique.
Spring marks the transition from the cold of winter to the warmth of summer. It is a time of renewal and growth, as plants begin to bloom, animals emerge from hibernation, and temperatures start to rise. Spring begins around March 20-21 in the Northern Hemisphere and September 22-23 in the Southern Hemisphere.
Summer is the hottest season, characterized by long days, high temperatures, and increased sunlight. It typically begins around June 21 in the Northern Hemisphere and December 21 in the Southern Hemisphere.
Autumn, also known as fall, is the transition from summer to winter. It’s a time of change as temperatures cool, leaves turn vibrant colors, and animals prepare for the coming cold. Autumn begins around September 22-23 in the Northern Hemisphere and March 20-21 in the Southern Hemisphere.
Winter is the coldest season, marked by short days, low temperatures, and, in many regions, snow and ice. Winter begins around December 21 in the Northern Hemisphere and June 21 in the Southern Hemisphere.