When Is Spring 2024 In The Uk. The first day of spring in the uk astronomically occurs on the vernal equinox, 20 march 2025. The seasons are brought about by the yearly orbit of the earth around the sun and the tilt of the earth's axis.

In 2024 the soring equinox is on wednesday, march 20 (at 3.06am to be specific), and astronomical spring ends on friday, june 21. Spring in the uk starts in march and runs until the end of may.