Astronomy

Southern Hemisphere Seasons & its Bizarre Consequences

seasons-in-southern-hemisphere

Our today topic is about Seasons in Southern Hemisphere? The northern and southern hemispheres of the Earth are separated by the Equator. Living in the southern hemisphere, which is below the equator, allows you to experience completely distinct seasons than living in the northern hemisphere, which is above the equator. Or to put it another way, the seasons in the southern hemisphere are the polar opposite of those in the northern.

Try to understand:

For instance, when the southern hemisphere Seasons is experiencing winter, the northern hemisphere is experiencing summer. I should point out that I will only discuss the seasons in the southern hemisphere. To learn more about the seasons in the northern hemisphere and their peculiar effects, you can read this article.

How many seasons are there in the southern hemisphere, then, is the question of the hour. Do we actually have four seasons, or are there actually six? Additionally, do the dates of these seasons change every year or when do they occur? The most crucial question is: Why do we even observe seasons at all? I will advise you to stay with me until the conclusion if you want a comprehensive understanding. Let’s get started now…

Why do we have seasons?

Read Also:

Simply because of the earth’s 23.4 degree axial tilt, we can experience four distinct seasons. In actuality, the earth’s tilt is also to blame for how the seasons in the northern and southern hemisphere differ. So, let me ask you a question now… What if the axial tilt wasn’t present?

Earth’s axial tilt (obliquity) is currently about 23.4°. Image Credit Wikimedia Commons
Earth’s axial tilt (obliquity) is currently about 23.4°. Image Credit Wikimedia Commons

On the other hand, there wouldn’t be a season on the surface of the world if there was no axial tilt. In fact, all of the planets in our solar system can be calculated using this technique. Mercury, for instance, has no axial tilt. This means that there are no seasons in it.

Neptune, on the other hand, has a 28.5 degree axial tilt. Neptune does experience observable seasonal shifts as a result. Now that we have this, we may ask our next question.

How many seasons exist there?

To be honest, different cultures define the number of seasons in different ways. For example, according to Asian(I am an Asian), there are six seasons in a calendar year. Because a calendar year has 12 months, we allocate two months to each season.

These are Late Winter (mid-January to mid-March), Spring (mid-March to mid-May), Summer (mid-May to mid-July), Monsoon (mid-July to mid-September), Autumn (mid-September to mid-November), and Early Winter (mid-September to mid-November) (mid-Nov to mid-Jan).

However, in terms of some common ground, we have only four seasons in a calendar year, according to fundamentally accepted seasons. Because a calendar year has 12 months, each season lasts about three months. Spring, Summer, Autumn, and Winter are the four seasons.

Definition of Seasons

Seasons can be defined in two ways. Seasons are defined astronomically and meteorologically. The arrival of the equinoxes and solstices marks the beginning and end of the seasons in the southern hemisphere, according to astronomy.

For example, not only does the June Solstice mark the official start of winter in the southern hemisphere. However, it also marks the end of autumn in the southern hemisphere.

In meteorology, however, equinoxes and solstices are not considered for seasonal definition. Seasons begin on the first day of the month, according to meteorological definitions. For example, in the southern hemisphere, the winter season begins on June 1 and lasts until August 31.

Different Seasons in Southern Hemisphere

earth's-illumination-during-different-season-in-different-hemisphere
Image Credit: Wikimedia Commons

The earth’s southern regions experience four seasons. The autumn season begins in March. Then there are winters in June, springs in September, and finally summers in December.

Not to mention that their start and end dates vary according to astronomical and meteorological definitions. Let us get to know each of them individually. However, before proceeding, please review the table below.

Seasons in Southern Hemisphere

SeasonsMeteorological Season DatesAstronomical Season Dates
Autumn Equinox 2022Tuesday, 1 March 2022Monday, 21 March 2022
Winter Solstice 2022Wednesday, 1 June 2022Tuesday, 21 June 2022
Spring Equinox 2022Thursday, 1 September 2022Friday, 23 September 2022
Summer Solstice 2022Thursday, 1 December 2022Thursday, 22 December 2022

All the seasons (meteorological and astronomical) dates are strictly in accordance with the southern hemisphere of the earth.

Fall in Southern Hemisphere

autumn-in-southern-hemisphere
An image of the first day of fall i.e autumn in Australia. Image Credit: Australian Broadcasting Corporation

Fall or Autumn in southern hemisphere comes in the month of March. On this day, the sun crosses over the imaginary celestial line from the south to the north direction. Therefore, as a result, the earth’s southern areas start to cool down rapidly. Hence, marking the end of the summer and the arrival of the first day of fall in the southern hemisphere.

Furthermore, on the eve of the March Equinox, daylight and nighttime hours are equalised. Then, with each passing day, the days will become shorter and shorter. This process of shorter days and longer nights will continue for people in the southern hemisphere until the June solstice, which marks the end of fall and the arrival of winter in Earth’s southern areas.

When does autumn/fall start in the southern hemisphere?

According to meteorological definition, the fall begins on March 1 and lasts until May 31. The first day of fall, according to astronomical definition, occurs on the eve of the March Equinox. The March Equinox in 2022 will occur on Monday, March 21, at precisely 03:33 Australian Eastern Daylight Time (AEDT).

Winter in Southern Hemisphere

winter-in-southern-hemisphere
An image of the first day of winter i.e winter solstice in Australia. Image Credit: OLIVER PELLING

The southern hemisphere’s hibernal season, or winter, begins in June. The earth’s south pole is at its most tilted away from the sun on this day. As a result, the earth’s southern regions receive the least amount of sunlight. Hence, marking the darkest as well as the shortest day of the year in the southern hemisphere.

Furthermore, on the eve of the June solstice, not only will the sun’s orbital path across the sky be as low as it can be for southerners, but the sun will also enter the tropic of cancer.

When does winter start in the southern hemisphere?

According to meteorological definition, winter begins on June 1 and lasts until August 31. The first day of winter, according to astronomical definition, occurs on the eve of the June Solstice. The June Solstice in 2022 will occur on Tuesday, June 21, at precisely 20:14 Australian Eastern Standard Time (AEST).

Spring in Southern Hemisphere

spring-in-southern-hemisphere
This is how Australia will look like after the occurrence of the September equinox. Image Credit: TripSavvy

The southern hemisphere’s vernal season, or spring, begins in September. The sun crosses over the imaginary celestial line from north to south on this day. As a result, the earth’s southern regions begin to rapidly warm. As a result, marks the end of winter and the first day of spring in the southern hemisphere.

Furthermore, on the eve of the September Equinox, daylight and nighttime hours are equalised. Following that, the days will grow longer and longer with each passing day. This process of longer days and shorter nights will continue until the December solstice, which marks the beginning of the Summer season in Earth’s southern hemisphere areas.

When does spring start in the southern hemisphere?

According to meteorological definition, spring begins on September 1 and lasts until November 30. However, the first day of spring, according to astronomical definition, occurs on the eve of the September Equinox. The September Equinox in 2022 will occur on Friday, September 23, at 12:04 a.m. Australian Eastern Standard Time (AEST).

Summer in Southern Hemisphere

summer-in-southern-hemisphere
A bird during the summer heat in the southern hemisphere

In the southern hemisphere, the Estival Season or Summer begins in December. On this day, the earth’s south pole is at its most tilted toward the sun. As a result, the earth’s southern regions receive the most sunlight. As a result, it is both the brightest and the longest day of the year in the southern hemisphere.

Furthermore, on the eve of the December solstice, not only will the sun’s orbital path across the sky be as high as it can be for southerners, but the sun will also enter the tropic of Capricorn.

When does Summer start in the southern hemisphere?

Summer, according to meteorological definition, begins on December 1 and lasts until February 28. (February 29 in a Leap Year). The first day of summer, according to astronomical definition, occurs on the eve of the December Solstice. The December solstice in 2022 will occur on Thursday, December 22, at precisely 08:48 Australian Eastern Daylight Time (AEDT).

That concludes this post. If you like this article, please share it and like it if you share it. We’re also on Mix, Twitter, Pinterest, and Facebook. Hello there, If you’ve read this far, please leave your thoughts in the comments section. It would brighten my day. You can also contribute financially. Your contributions will assist us in running our website and serving you BETTER. Cheers!!!

Leave a Reply

Your email address will not be published.

Back to top button