Onam in 2023 was celebrated beginning on August 20 and concluded on the auspicious day of Thiruvonam, which fell on August 29, 2023. The Thiruvonam Nakshatra began at 2:43 AM and ended at 11:50 PM on August 29. The Onam festival lasts for 10 days and marks the Malayalam New Year, celebrated with various cultural activities and the grand feast known as Onam Sadya. It commemorates the homecoming of the legendary King Mahabali and the harvest season in Kerala.