when does the summer solstice occur in the northern hemisphere
Summer solstice The summer solstice occurs during the hemisphere's summer.[2] This is the June solstice in the Northern Hemisphere and the December solstice in the Southern Hemisphere. Depending on the shift of the calendar, the summer solstice occurs some time between June 20 and June 22 in the Northern Hemisphere[3][4] and between December 20 and December 23 each year in the Southern Hemisphere.[5] The same dates in the opposite hemisphere are referred to as the winter solstice.
Noon Solar noon (informally high noon)[3] is the moment when the Sun contacts the observer's meridian, reaching its highest position above the horizon on that day ("Sun transit time"). This is also the origin of the terms ante meridiem (a.m.) and post meridiem (p.m.), as noted below. The Sun is directly overhead at solar noon at the Equator on the equinoxes, at the Tropic of Cancer (latitude 23°26′13.0″ N) on the June solstice and at the Tropic of Capricorn (23°26′13.0″ S) on the December solstice. In the Northern Hemisphere, north of the Tropic of Cancer, the Sun is due south of the observer at solar noon; in the Southern Hemisphere, south of the Tropic of Capricorn, it is due north.