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.
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 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.
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