The Summer Solstice is the one celebration in Latvia that has the most traditions. The celebration is held when the Sun has reached its apex in the sky, with the longest day being followed by the shortest night of the year. Nature is flourishing. Because the Solstice does not take place on the same day each year, the Ancient Latvians celebrated the festival in accordance with the movement of the sun, and the celebration began on June 21. Today, Summer Solstice Eve is celebrated in Latvia on June 23, with the Summer Solstice day, known as Jāņi in Latvia, is an official holiday.