Onam is the most important and widely celebrated festival in Idukki, bringing together people from all communities in a joyful celebration of Kerala’s culture, tradition, and unity. Celebrated during the Malayalam month of Chingam (August–September), Onam marks the legendary return of King Mahabali, whose reign is believed to have been a golden age of peace, prosperity, and equality.
In Idukki, Onam has a distinct high-range charm. The celebrations blend traditional Kerala customs with the region’s hill culture, plantation life, and tribal heritage. Homes, public offices, schools, and town centers are decorated with colorful pookalam (floral designs) made from fresh flowers collected from the surrounding hills. Cultural programs, folk dances, and traditional games add vibrancy to towns and villages across the district.
A major highlight of Onam in Idukki is the Onam Sadya, a grand vegetarian feast served on banana leaves, prepared with locally grown vegetables and traditional recipes. Though large snake boat races are rare due to the hilly terrain, smaller cultural events, processions, and community gatherings keep the festive spirit alive.
Onam in Idukki is not just a festival—it is a celebration of harmony between people and nature, reflecting the district’s agrarian roots, cultural diversity, and strong sense of community. The festival reinforces values of unity, gratitude, and respect for tradition, making it truly deserving of its title as “The Grand Festival of Idukki.”

