Autumn Equinox 2024. Autumn / fall equinox 2024. From talking fridges to iphones, our experts are here to help make the world.

So, when is the autumnal equinox in 2024? 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, moving from the.