Fall Season 2024 Start Date Uk. In 2024, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall. According to the meteorological season, autumn always starts in the northern hemisphere on september 1 and ends on november 30.
Autumn in the uk starts in september and runs until the end of november. The season change dates are based on the spring and fall equinoxes as well as the summer and winter solstices.