When Is Spring Uk 2024. The equinox in the northern hemisphere occurs twice a year around 20 march (the spring equinox) and around 22 september (the autumn equinox). When is the first day of spring in the uk and what the spring equinox?
By the meteorological calendar, spring will always start on 1 march; It is also the point in the calendar where the day length is more or less equal to the.