What Day Is The Summer Solstice 2024. The summer solstice is the first day of astronomical summer, although the more logical metrological summer begins december 1st / june 1st (depending on hemisphere). Which mark the beginning of astronomical summer and winter.
The summer solstice or estival solstice occurs when one of earth’s poles has its maximum tilt toward the sun.it happens twice. First day of spring 2024.