Autumn Equinox 2025 Date Uk. Autumn 2025 starts on monday, september 22nd in the northern hemisphere, with daylight time shortening and the leaves begining to fall with the changing tilt of the earth's axis. The occurrence of spring equinox usually falls on the 20th or 21st march, and the autumnal equinox falls on 22nd or 23rd september every year.
The autumn equinox is sometimes referred to as the september equinox. New bank holiday could be planned for 2025 the uk could be set to get an extra bank holiday in 2025, as the country marks two major anniversaries, reports suggest.