When Is The Autumn Equinox 2024 Uk. This year, it falls on sunday 22nd september 2024. The autumnal equinox (as well as spring equinox) is the moment when neither of the earth’s hemispheres is inclined towards or away from the sun.
This page lists all the details that are specific to this event. The autumnal equinox, or the first day of fall in the northern hemisphere takes place every year on september 22nd or september 23rd.