What Day Is The Spring Equinox 2025 Uk. The vernal equinox, also known as the spring equinox, will occur on march 20, 2025, at 10:15 utc (coordinated universal time). Spring equinox 20 march, summer solstice 21 june, autumn equinox 22 september, winter solstice 21 december.

Spring begins a bit earlier if you go by. Spring equinox 20 march, summer solstice 21 june, autumn equinox 22 september, winter solstice 21 december.