Solstice in June: When Does the New Season Start?

What is a solstice?

Commonly speaking, a solstice is a moment when the Sun’s path is farthest north or south in the sky. This day is the year’s longest or shortest: the Sun travels the longest (shortest) path through the sky, and the day, therefore, has the most (the least) daylight. There are two solstices a year — in June and December.

When is the June solstice 2021?

A solstice day shifts between June 20, 21, and 22. In 2021, the first solstice of the year will occur on June 20, 23:32 EDT (June 21, at 03:32 GMT). Convert this to your time zone to learn the exact time for your location.

When does summer start?

There are different methods to identify seasons. Astronomically speaking, two equinoxes and two solstices a year mark the changing of the seasons. Therefore in the Northern Hemisphere, summer will begin on June 21 and will last till the equinox on September 23, 2021. However, in the Southern Hemisphere, summer will only start on December 21, together with the day of December solstice.


Let’s quickly go through the most commonly asked questions.

Interesting Facts

  • The June solstice is the first solstice of the year;
  • The Sun sets more slowly at the solstice;
  • Mars also has solstices that occur with approximately 23-month intervals;
  • The June solstice is also called the northern solstice;
  • During the June solstice, the Sun is exactly above the Tropic of Cancer which is located at 23° 26′ north of the Equator.



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