Autumn Equinox 2024 Date. Find out more about equinoxes and solstices. In the northern hemisphere, the closest autumnal equinox will take place on september 22, 2024, at 12:44 gmt (08:44 a.m.
For autumnal equinoxes for the next 12 years scroll down the page. The autumnal equinox for the northern hemisphere and the first day of fall begin on the same day, at 8:44 a.m.