After the sun arrives at its solstice point, it will begin to migrate back toward the south and the amount of daylight in the Northern Hemisphere will begin to decrease.

Summer officially begins in the Northern Hemisphere on June 20 with the summer solstice, the day with the greatest amount of possible daylight and the shortest night.

Summer solstice returns with peak sunshine throughout the Northern Hemisphere. On the day of the summer solstice, the sun appears at its highest elevation. WASHINGTON, D.C. - Summer solstice is the time of year when the sun has peak sunshine in the Northern Hemisphere.