When does the fall semester 2020 start?

Weather of Arabia - according to astronomical calculations , the autumn season is expected to begin in astronomical terms on 9/23-2020, in the northern part of the Earth, which is the day of the autumn equinox, when night and day are completely equal throughout the globe on that day. As a result of the sun perpendicularly to the equator on its apparent journey towards the south.

And starting from 9-23-2020, the night begins to gradually gain additional minutes of the day in the northern hemisphere, as the night hours become longer than daylight hours, which works to gradually decrease the temperature of the northern part of the globe, but this does not prevent Heat waves sometimes form in the Arab region, especially in early autumn.

This date is also considered to be the beginning of one long night that lasts 6 months in the Arctic region, which prepares for the entry of the astronomical winter during the month of December.

On this day, citizens can accurately determine geographical locations, as the sun rises completely in the east and sets completely in the west.

When does the fall semester begin in meteorology, and what is the difference between the two beginnings?

The first Tuesday of September 202 fell, the beginning of the meteorological fall semester, in the northern hemisphere. It extends until November 30, and then winter begins on December 1. ( Read more here )

The importance of the autumn equinox and the fall semester

The significance of the autumn equinox and fall season resides in 10 main things, namely:

• A very long night begins in the Arctic region and lasts for a full 6 months, until the 2020 spring equinox.

• In the Antarctic region, a very long day begins, lasting for a full 6 months, until March 2020.
• The autumn season begins "astronomically" in the northern hemisphere, while the spring season begins in the southern hemisphere.
• The sun is completely perpendicular to this date on the equator, and no shadow will form in the places that this line passes through.
• Day and night are equal on this day in all regions of the globe.
• The sun rises completely in the east and sets completely in the west.
• Everyone on Earth during this day can determine directions with accuracy.
• After this date, the night is longer and the days are shorter in the northern hemisphere
• The autumn season is the actual start of the rainy season in many Arab countries.
• The fall semester will last 91 days until the winter solstice on December 21.
• Finally, temperatures decrease in the northern hemisphere, and rise in the southern half.

What will the weather conditions and rainfall rates be during the fall of 2020?

Details of weather conditions, temperatures and rain rates during the fall of 2020, by subscribing and viewing the seasonal bulletin forecast, which is available through the Arab Weather application in its new version