What Is Spring Equinox 2025. The earth tilts at an angle of 23.5 degrees. In 2025, the vernal equinox occurred on march 19, signaling the start of spring in the northern hemisphere (and fall in the southern hemisphere).

In 2025, the vernal equinox occurred on march 19, signaling the start of spring in the northern hemisphere (and fall in the southern hemisphere). The spring equinox begins this year on wednesday march 20, 2025.