When Is The Autumnal Equinox In 2024 In Australia. Mabon in the northern hemisphere occurs on september 23, and march 20, 2024 in australia and the southern hemisphere. Spring equinox 20 march, summer solstice 21 june, autumn equinox 22 september, winter solstice 21 december.

Spring equinox 20 march, summer solstice 21 june, autumn equinox 22 september, winter solstice 21 december. Check autumnal equinox date and time in 2025.