Ab Pashounak Festival (Start of Summer), Tir 1. This festival is a traditional Iranian observance marking the beginning of summer. On this day, people celebrate by sprinkling water, symbolizing a welcome to the summer heat and a wish for rainfall. The custom is still observed in some regions of Iran, especially among Zoroastrian communities and local groups. The Ab Pashounak Festival highlights the importance of water and its role in agricultural and social life in Iran.