Autumnal Equinox 2024 Uk. As the days grow shorter and the air becomes crisper, we approach the autumn equinox, also known as mabon or alban elfed in the druidic tradition. The autumnal equinox, or the first day of fall in the northern hemisphere takes place every year on september 22nd or september 23rd.
The autumnal equinox occurs in september, and in the northern hemisphere this date marks the end of summer and beginning of autumn. The equinox in the northern hemisphere occurs twice a year around 20 march (the spring equinox) and around 22 september (the autumn equinox).