Equinox 2024 Uk. The equinoxes occur around march 20 and september 22 each year, corresponding to an. Normally, the autumn equinox falls between 22 and 24 september, and this year the equinox occurs on 22 september at 13:44 bst.

The autumnal equinox occurs in september, and in the northern hemisphere this date marks the end of summer and beginning of autumn. However, the astronomical calendar is based on the position of the sun in relation to the earth and changes each year — known.