Irreecha (also called Irreessa or Dhibaayyuu), is thanksgiving holiday celebrating the end of the winter in Oromia Region, Ethiopia.

The Oromo people celebrate Irreecha to thank Waaqa (God) for the blessings and mercies they have received throughout the previous year.

Once at the lake, festival-goers immerse freshly cut green grass and the flowers they are carrying and sprinkle themselves and place in water.

[5] In 2019, the festival was celebrated in Addis Ababa, the capital city of Ethiopia and the regional state of Oromia, followed by Irreecha in Bishoftu.

The Oromo people also consider the winter rainy season of June to September as a time of difficulty in communication with families and friends due to heavy rains which could cause rivers to swell and floods that may drown people, cattle, crop, and flood homes.

In Birraa (Spring in Oromoland), this shortage ends as many food crops especially maize is ripe and families can eat their fill.