Spring Solstice 2024 Date. Summer begins with the summer solstice, thursday, june 20, 2024, 4:51 p.m. 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.
Spring begins with the vernal equinox, tuesday, march 19, 2024, 11:06 p.m. This year, the spring equinox falls on wednesday 20 march, and the astronomical spring lasts until the summer solstice.