There is no bigger night in the Latvian year than the night of June 23. Jāņi - or Līgo, the two names that belong to the same festival - is Latvia's midsummer, and it is celebrated with a completeness and intensity that sets it apart from every other point on the folk calendar. Bonfires that must not go out until dawn, flower wreaths and oak-leaf crowns, Jānis cheese and cold beer, and the ancient Līgo songs rising and falling across the short bright night: this is the festival at the heart of what it means to be Latvian.
What Jāņi celebrates
Jāņi celebrates the fullness of summer - the peak of warmth, the abundance of green, the longest day and the shortest night. If Lieldienas marked the equinox and the promise of summer, Jāņi celebrates the promise kept. The fields are lush, the sun barely sets, and the whole of nature is at its most generous.
The festival has deep Baltic roots and an equally deep living continuity. Unlike reconstructed observances, Jāņi has never stopped being celebrated in Latvia - it survived the Soviet period, it survived Christianisation, and it came out the other side with its customs largely intact. The church overlay of St. John's Day (June 24) gave it an official name to shelter under, but the bonfire through the short night, the search for the fern flower in the forest, the singing of Līgo songs - these are not liturgical. They are older.
The Norse Midsummer shares the same seasonal moment - the June solstice and the height of the bright half of the year. Reading the two traditions together shows how profoundly this turning point mattered across the entire northern world, and how differently each culture expressed the same awe. The bonfires, the feasting, the sense that something unusually powerful is available in this short light night - these run across both.
When Jāņi falls
Jāņi is fixed: Līgo eve on June 23, Jāņi day on June 24. This makes it unusual among Baltic folk festivals in having an unchanging date rather than a solar or lunar calculation. The date's proximity to the solstice is not coincidental, but the folk calendar simply fixed it here. The coincidence with St. John's Day is the church's contribution.
In Latvia, June 23 is a public holiday (Līgo Day) and June 24 is Jāņi Day - two consecutive national holidays that together give people the time and space to celebrate properly. Many Latvians travel to the countryside for the festival, to farms and old family homesteads where bonfires can be lit in open fields.
How Jāņi is observed
The bonfire is the irreplaceable centre. It must be lit as the sun sets and kept burning through the night until sunrise - letting it go out is considered bad luck. People leap over the flames, the smoke is understood to protect, and the fire's light reaching across the fields is understood to drive away anything harmful.
Women make flower wreaths to wear through the night; men wear crowns of oak leaves. The specific flowers and their arrangement carry folk meaning, and a properly made wreath is a matter of both craft and care. The Jānis cheese is prepared, the dark rye bread is cut, beer is poured, and the Līgo songs begin - their distinctive call-and-response form, with the word "Līgo" as the refrain, is unlike anything else in Latvian folk music.
The search for the fern flower sends pairs of people into the forest at midnight to look for a bloom that has never existed. No one finds it. That is entirely beside the point.
Today Jāņi is one of the most widely and genuinely celebrated festivals in Latvia. It is not a heritage performance - it is simply what happens at the end of June, in fields and farmyards and lakesides across the country and in Latvian communities around the world.