When Is The Autumn Equinox 2024 Uk. The autumn equinox is the moment when the sun passes the earth's equator and for one nanosecond the earth is neither tilted toward. This year autumn begins on 23 september 2023 and ends on 22 december 2023.

It can occur anytime between the 21st and the 24th of september, and this year it will be on the 22nd. In 2024, the autumnal equinox will take place on september 22,at 08:44 a.m.