Which ancient Iranian festival is dedicated to the rain-bringing Yazata Tishtrya? Tirgan.
Tirgan is an ancient Iranian summer festival associated with Tishtrya, the Zoroastrian Yazata linked to rain and storms. In Zoroastrian tradition, Tishtrya appears as a powerful star and brings life-giving rain after struggling against the forces of drought. The festival is traditionally observed on Tir 13, a date that corresponds to early July in the Gregorian calendar.
Tirgan combines religious symbolism with regional customs. Water-splashing, dancing, poetry, festive foods, and colorful wrist bands are among its best-known traditions. The bands may be worn for several days before being released into flowing water, reinforcing the festival’s connection with rain and renewal.
The celebration is also tied to the legend of Arash the Archer. According to the story, Arash’s arrow established the boundary between Iran and Turan; rain then returned, ending a period of hardship. Tirgan is often confused with other Iranian festivals: Nowruz marks the spring new year, Mehrgan honors Mithra and autumn, and Yalda celebrates the winter solstice.