Autumn Equinox 2024 Meaning In English. — the autumnal equinox brings fall to the northern hemisphere today as the sun passes directly over the equator at noon. It is the second of three harvest festivals on the wheel of the year.
— autumnal equinox, two moments in the year when the sun is exactly above the equator and day and night are of equal length; Falling on september 22, 2024, this equinox marks the official start of fall in the northern hemisphere.