Weather of Arabia - The date of the autumn equinox for this year (2020) comes in the northern hemisphere, on Wednesday 23 September , which is the astronomical start of the autumn season.
When does the fall semester 2020 start?
The importance of the autumn equinox:
In addition to the fact that night and day are equal to the autumn equinox day in all regions of the globe, the importance of this astronomical date and the autumn season lies in other 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 .
- 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.
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When will fall 2020 begin in meteorology?
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