Autumn Solstice 2024 Australia. In 2024, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall. In 2024, autumn equinox in australia (southern hemisphere) will occur on tue, march 20, at sharp 02:07 pm aedt (australian eastern daylight time).
This saturday, december 21, the daylength will be about 14 hours and 25 minutes in sydney and about half an hour longer than that in. Spring equinox 20 march, summer solstice 21 june, autumn equinox 22 september, winter solstice 21 december.