When Will The Fall Equinox Happen 2024. The fall equinox, also known as the autumnal equinox, is when astronomical fall arrives. Autumn equinox 2024 (beginning of astronomical autumn) on the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator,.

When is the fall equinox in 2024? When will the fall equinox happen 2024 mable atlante, the sun entries into the 4 cardinal.