September 9月
- January
- February
- March
- April
- May
- June
- July
- August
- September
- October
- November
- December
September is the ninth month of the year in the Julian and Gregorian Calendars and one of four months with a length of 30 days.
September in the Northern Hemisphere is the seasonal equivalent of March in the Southern Hemisphere.
In the Northern hemisphere, the beginning of the meteorological autumn is on 1 September. In the Southern hemisphere, the beginning of the meteorological spring is on 1 September.