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Thiruvonam

Guide to the date, history, cultural origins and celebration traditions of Thiruvonam in India.

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History & Origins of Thiruvonam

Thiruvonam is the peak day of the ten-day Onam festival, the national festival of Kerala. It commemorates the mythical golden age of the benevolent Asura King Mahabali, who was granted a boon by Lord Vishnu's Vamana avatar to visit his beloved subjects once every year on this auspicious day.

How It Is Observed & Celebrated

Keralites celebrate by creating beautiful floral carpets (Pookalam) in front of homes, wearing traditional white-and-gold attire (Mundu and Kasavu), and serving the grand 'Onasadya'—a lavish multi-course vegetarian feast served on banana leaves. Snake boat races (Vallamkali) are held across the backwaters.

Quick Facts Card

Country: India
Holiday Name: Thiruvonam
Date (2026): August 26
Day (2026): Wednesday
Observance Type: Statutory
Observed In: Kerala
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Date Reference Matrix (3-Year Range)

Year Calendar Date Day of the Week Status
2025 September 05, 2025 Friday Official Statutory Day Off
2026 August 26, 2026 Current Year Wednesday Official Statutory Day Off
2027 September 12, 2027 Sunday Official Statutory Day Off