How many seasons are there in a year?

Seasons are divisions of the year based on changes in weather, ecosystems, and daylight hours in a particular region. On Earth, the seasons are a result of the axial parallelism of the Earth's tilted orbit around the Sun. In temperate and polar regions, the seasons are caused by the sun reaching the surface of the Earth. Characterized by changes in light intensity. This causes animals to hibernate or migrate, and plants to go dormant. Different cultures define the number and types of seasons based on regional differences. As such, there are many modern and historical cultures with different numbers of seasons. Seasons often have special significance for agricultural societies, where life revolves around the planting and harvesting of rice, and the change of seasons is often accompanied by rituals. The definition of seasons is also cultural. In India, from ancient to modern times, six seasons or rituals have been recognised based on the South Asian religious or cultural calendar and identified for purposes such as agriculture and commerce. In the northern hemisphere, direct sunlight is most common in May, June, and July. when the hemisphere faces the sun. The same is true for the southern hemisphere in November, December, and January. It is the tilt of the Earth's axis that causes the sun to rise higher in the sky during the summer and the solar flux to increase. However, due to seasonal shifts, June, July, and August are the warmest months in the northern hemisphere, while December, January, and February are the warmest months in the southern hemisphere.

What causes seasons?

Seasonal cycles are caused by the tilt of the Earth toward the Sun. The planet rotates around its (invisible) axis. At various times of the year, the north or south axis is closer to the sun. According to the National Oceanic and Atmospheric Administration (NOAA) (opens in new tab), during these periods, the hemisphere tilts toward the stars and experiences summer, while the hemisphere tilts away from the Sun and experiences winter.

Elsewhere in the Earth's annual migration, the axis neither tilts toward nor away from the Sun. During this season, the hemisphere experiences spring and autumn. The summer and winter solstices are the longest and shortest days of the year and occur when the Earth's axis is closest or furthest from the Sun. According to NOAA, the summer solstice in the northern hemisphere will occur around June 21, the same as the the winter solstice in the southern hemisphere. The summer solstice in the south is around December 21st, and the winter solstice is in the north. In both hemispheres, the summer solstice marks the astronomical first day of summer, and the winter solstice is considered the astronomical first day of winter. The equinox is another important day in the Earth's journey around the Sun. These days, the axes of the planets are parallel to the Sun, rather than moving towards or away from it. On the vernal equinox, it is said that day and night are almost the same. The spring equinox or vernal equinox in the northern hemisphere occurs around March 20, the same as the autumnal equinox in the southern hemisphere. The southern hemisphere vernal equinox occurs around September 20, when people in the northern hemisphere celebrate the autumnal equinox.

Types of seasons

If we observe the overall climatic conditions throughout the year, there are three major types of seasons — Summer, Rainy, and Winter.

In India, there are six different seasons; Summer, Rainy, Autumn, Dew, Winter, and Spring.

However, there are four primary types of seasons all around the world. That are as follows Summer , Autumn, Winter and Spring

Summer season

The summer solstice is the transition from cold weather to hot weather. Summer is the hottest of the temperate seasons and occurs from spring to autumn. Midway through or around the summer solstice, the earliest sunrises and latest sunsets occur, the longest hours of daylight and the shortest hours of darkness occur, and day length decreases as the season progresses after the solstice. The start date of summer depends on climate, traditions, and culture. If it is summer in the northern hemisphere, it is winter in the southern hemisphere, and vice versa. As the earth tilts, certain parts (north or south) receive the most light, resulting in longer days and shorter nights. And such days feel like dry, hot summers.

Autumn season

Autumn, also known as fall in American English, is one of the four temperate seasons on Earth. Outside the tropics, autumn in September (northern hemisphere) or March (southern hemisphere) marks the transition from summer to winter. Autumn is a time of markedly longer daylight hours and significantly cooler temperatures. Until the winter solstice in December (northern hemisphere) and June (southern hemisphere), the days get shorter and the nights get longer as the season progresses. One of the main characteristics of temperate climates is that the leaves of deciduous trees undergo a marked change in leaf color as they prepare to defoliate. During the fall foliage season, the leaves change color and deciduous trees can be seen everywhere.

because these downpours are of particular value to farmers. But it also shows a lot of damage. For example, too much rain can also destroy a rancher's crops. It can also increase in the case of heavy rains, causing catastrophic events and damaging the lives of ordinary citizens.

Winter season

Winter is the coldest season in polar and temperate climates. Occurs from autumn to spring. The tilt of the earth's axis causes the seasons. Winter occurs when one hemisphere faces away from the Sun. Different cultures start winter at different times. Some use weather-based definitions.

If it's winter in the northern hemisphere, it's summer in the southern hemisphere, and vice versa. In many areas, winters are snowy and temperatures drop below freezing. The moment of the winter solstice is when the altitude of the Sun relative to the North or South Pole is most negative. That is, the Sun is at the very bottom of the horizon, measured from the poles. The day on which this occurs has the shortest day and the longest night, with longer days and shorter nights as the seasons progress from the solstice.

The earliest sunset and latest sunrise dates outside the polar regions vary with latitude, unlike the winter solstice dates. They differ due to variations in the solar day throughout the year caused by the Earth's elliptical orbit (see earliest and latest sunrises and sunsets).

Spring season

Spring, also called spring, is one of the four warmer seasons following winter and preceding summer. There are many different professional definitions of spring, but the usage of the term varies according to local climate, culture, and customs. If it is spring in the northern hemisphere, it is autumn in the southern hemisphere, and vice versa. At the vernal equinox (or vernal equinox), the length of day and night is about 12 hours until the summer solstice in June (northern hemisphere) and December (southern hemisphere), with day length, increasing and night length increasing as the season progresses. becomes shorter.

Spring and 'Spring' refer to the seasons and also the concepts of renewal, rejuvenation, renewal, rebirth, and new growth. Subtropical and tropical regions have climatic zones that are better described in terms of other seasons. dry or wet, monsoon or cyclone.