Spring Equinox 2024 Southern Hemisphere. This is when the sun is exactly perpendicular to earth's equator. Spring equinox 2024 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic.

September is one of the best months of the year for stargazing in the northern hemisphere. This date marks the spring equinox in the northern hemisphere.