When Is Spring Solstice 2025. Fall begins with the autumnal. It is also the point in the calendar where the day length is more or less equal to the.
Generally, perihelion occurs about january 2 to 4 after the december solstice. Spring equinox 2025 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic.