When Is the Summer Solstice?
The summer solstice takes place annually between June 20 and June 22, depending on the year. Summer solstice 2026 is on Sunday, June 21. Astronomically speaking, this is the first day of summer in the Northern Hemisphere and the first day of winter in the Southern Hemisphere.
Longest Day of the Year
On the summer solstice, the Northern Hemisphere receives more daylight than during any other day of the year. Because the Earth is tilted on its axis by 23.4 degrees, it causes some regions of the globe to be closer to the sun than others as the Earth orbits our nearest star. The longest day of the year in the Northern Hemisphere is the point at which this part of the world is closest to the sun. The summer solstice is also the tipping point at which days start to become shorter and nights grow longer until the winter solstice.
The word “solstice” comes from the Latin words “sol,” meaning sun, and “stitium,” meaning still or stopped. Ancient peoples noticed that as summer progressed, the sun stopped moving northward in the sky and began tracking southward again as summer turned to autumn. (After the winter solstice, the sun does the opposite and begins moving northward as winter slowly turns to spring.)
Neolithic humans might initially have started to observe the summer solstice as a marker to figure out when to plant and harvest crops. In Ancient Egypt, the summer solstice corresponded with the rise of the Nile River. Its observance might have helped to predict annual flooding.
Different cultures and religious traditions have different names for the summer solstice. In Northern Europe, it’s often referred to as Midsummer. Wiccans and other Neopagan groups call it Litha, while some Christian churches recognize the summer solstice as St. John’s Day to commemorate the birth of John the Baptist.