When Is Onam 2024. Onam (malayalam:ഓണം) is the largest festival in the indian state of kerala. Onam festivities are held on the day that nakshatra thiruvonam appears in the month of chingam.

Onam (malayalam:ഓണം) is the largest festival in the indian state of kerala. Thiruvonam nakshatram begins at 20:33:24 on september 14, 2024.