Spring Equinox 2025 Season 2. 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. In 2025, the vernal equinox occurred on march 19, signaling the start of spring in the northern hemisphere (and fall in the southern hemisphere).
When we spring forward in march, it’s to add more daylight in the evenings. The spring equinox is the perfect time to start something new.