Fall Equinox 2024 Southern Hemisphere

Fall Equinox 2024 Southern Hemisphere. The fall equinox marks the first day of fall in the northern hemisphere. On the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator, moving from the northern hemisphere to the southern.

The march equinox marks the beginning of spring in the northern hemisphere and the first day of fall in the southern hemisphere. The fall equinox, also known as the autumnal equinox, will occur on september 22, 2024.