Spring Equinox 2025 Australia. Spring equinox 2025 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic. This year’s southern hemisphere spring equinox will occur at 10:44pm aest on sunday, september 22.

The times listed are for australian eastern standard time (coordinated universal time + 10 hours). It connects people to the natural world and its cycles, celebrates the country’s rich indigenous.