The June Solstice occurs on June 21, 2023 at 9:57 am CDT or Wednesday, June 21, 2023 at 14:57 UTC. The Summer or June solstice occurs when the sun’s zenith is at its furthest point from the equator. On the June solstice the Sun reaches its northernmost point and is directly over the Tropic of Cancer in the Northern Hemisphere. This marks the beginning of summer in the northern hemisphere and winter in the southern hemisphere.