When Is The Fall Equinox 2024 Uk. On that day, the autumnal equinox will occur, marking the beginning of fall. In 2024 the autumnal equinox will occur on 22 september at 12.44pm gmt (1.44pm bst).
The autumnal equinox, or the first day of fall in the northern hemisphere takes place every year on september 22nd or september 23rd. In 2024, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall.