March Equinox 2025 South Africa. Spring equinox 20 march, summer solstice 21 june, autumn equinox 22 september, winter solstice 21 december. On the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic.

Want to include this holiday information in your website or application? It also lists astronomical sunrise and sunset timings on autumnal equinox.