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.
Midnight sun Around the summer solstice (approximately 21 June in the Northern Hemisphere and 22 December in the Southern Hemisphere), the sun is visible for the full 24 hours, given fair weather. The number of days per year with potential midnight sun increases the closer towards either pole one goes. Although approximately defined by the polar circles, in practice the midnight sun can be seen as much as 55 miles (90Â km) outside the polar circle, as described below, and the exact latitudes of the farthest reaches of midnight sun depend on topography and vary slightly year-to-year.