First Day Of Autumn 2024 Dates Uk. The meteorological winter starts on 1 december and ends on 28 or 29 february. The autumnal equinox, or the first day of fall in the northern hemisphere takes place every year on september 22nd or september 23rd.
The astronomical autumn begins on the date of. Find out when autumn begins in the uk according to the astronomical and meteorological calendars, and what the autumnal equinox means.