Spring Vernal Equinox 2025 Uk. The spring equinox (march 19, 2025) signals the start of spring in the northern hemisphere, the beginning of autumn in the southern hemisphere, and a rare moment. The vernal equinox marks the beginning of astronomical spring, while the autumnal equinox marks the beginning of autumn.
It also lists astronomical sunrise and sunset timings on vernal equinox. In 2025 the autumnal equinox will occur on 22 september at 12.44pm gmt (1.44pm bst).