Spring Equinox In 2025. The spring equinox in the northern hemisphere will fall on march 19 at approximately 10:06 p.m., according to nasa. Spring equinox is the moment in which the sun enters aries.
In 2025, the official first day of spring is thursday, march 20. The spring equinox 2025 is a significant astronomical event that marks the beginning of spring in the northern hemisphere and autumn in the southern hemisphere.