Summer 2021 in Northern Hemisphere will begin on Sunday, June 20 and ends on Wednesday, September 22.
THE JUNE SOLSTICE
In the Northern Hemisphere, the June solstice (aka summer solstice) occurs when the Sun travels along its northernmost path in the sky. This marks the astronomical start of summer in the northern half of the globe. (In the Southern Hemisphere, it’s the opposite: the June solstice marks the astronomical start of winter, when the Sun is at its lowest point in the sky.)
WHEN IS THE SUMMER SOLSTICE?
The June solstice occurs on Sunday, June 20, 2021, at 11:32 P.M. EDT. In 2021, it so happens that the solstice falls on the same day as Father’s Day!
The solstice marks the official beginning of summer in the Northern Hemisphere, occurring when Earth arrives at the point in its orbit where the North Pole is at its maximum tilt (about 23.5 degrees) toward the Sun, resulting in the longest day and shortest night of the calendar year. (By longest “day,” we mean the longest period of sunlight hours.) On the day of the June solstice, the Northern Hemisphere receives sunlight at the most direct angle of the year.
|Year||Summer Solstice (Northern Hemisphere)|
|2021||Sunday, June 20, at 11:32 P.M. EDT|
|2022||Tuesday, June 21, at 5:14 A.M. EDT|
|2023||Wednesday, June 21, at 10:58 A.M. EDT|
|2024||Thursday, June 20, at 4:51 P.M. EDT|
Note: In the Southern Hemisphere, the June solstice marks the beginning of winter.