September begins in western astrology with the sun in the sign of Virgo and ends in the sign of Libra. Astronomically speaking, the sun actually begins in the constellation of Leo and ends in the constellation of Virgo.
In Latin, septem means "seven" and septimus means "seventh"; September was in fact the seventh month of the Roman calendar until 153 BC.
In the Netherlands the third Tuesday in September is known as prinsjesdag. The government presents its annual budget. The queen rides to the parliament in a gilded coach and reads the plans for the coming year to the States-general.
The equinox named the autumnal equinox in the northern hemisphere and the vernal or spring equinox in the southern hemisphere occurs on dates varying from 21 September to 24 September (in UTC). In the paganwheel of the year the spring equinox is the time of Ostara and the autumn equinox is that of Mabon.
In Australia, the AFL Grand Final is played on the last Saturday of September.
September 1 is celebrated as the beginning of Eritrea's 30 year armed struggle for independence from Ethiopia which began in 1961 and ended in 1991.
In Croatian, September is called Rujan, meaning red month (leaves turn red before falling).
In Czech, September is called září, meaning glow or shine.
In Finnish, September is called syyskuu, meaning autumn month.
In Polish, September is called wrzesień, month when calluna flowers emerge.
In Tigrinya and Amharic, September is called meskerem which is also the month when the yellow flowers of the same name blossom marking the beginning of the New year according to the ancient Christian orthodox calendars of Eritrea and Ethiopia as well as the start of the greatest harvest season in most parts of both countries.
In Turkish, September is called Eylül, (Arabian - eylûl), syriac-Arabian 'aylûl' means 'Grape'. Thus the meaning might be "Grape Month". Another, more likely, possibility might be from the Hebrew month Elul.
September begins on the same day of the week as December every year.