When Is Summer Solstice 2024 Usag. It also lists astronomical sunrise and sunset timings on summer solstice. This is also the official first day of the winter season, which will last until the spring equinox on.
The summer solstice, also known as the june solstice arrives june 20 at 4:51 p.m. The first day of summer (june solstice) is when the sun is in its most northern position directly.