When is the last day of summer?
The last day of summer would the day before the September Equinox which would be approximately Sept 22 (Monday for this year) or 23 (Tuesday). Thus summer would be ending on tommorrow or the next day. See information below: September Equinox (approximately September 22-23) This day begins fall in the Northern Hemisphere and spring in the Southern Hemisphere. There are twelve hours of daylight and twelve hours of darkness at all points on the earth’s surface on the two equinoxes. Sunrise is at 6 a.m. and sunset is at 6 p.m. local (solar) time for most points on the earth’s surface.
the Autumnal Equinox (the first day of Fall) The date (near September 22 in the northern hemisphere) when night and day are nearly of the same length and Sun crosses the equator moving southward (in the northern hemisphere). In the southern hemisphere, the autumnal equinox corresponds to the center of the Sun crossing the equator moving northward and occurs on the date of the northern vernal equinox.
