Onam is a Hindu harvest festival that marks the Malayali New Year and is primarily observed in the southwestern Indian state of Kerala. It is observed in the Malayali month of Chingam, which falls in August and September. Onam celebrates the brief annual return of King Mahabali, the legendary asura king of Kerala. It is also a holiday of thankfulness for the harvest. When is Onam 2025: Know Thiruvonam date, timings, and more about this Kerala festival Onam 2025 Thiruvonam Date: This year, Onam festivities will begin on August 26, 2025, and will conclude with Thiruvonam falling on Friday, September 5, 2025. Onam is Kerala’s most prominent cultural festival , celebrated each year with great excitement and a strong sense of tradition. Onam, Kerala’s official state festival, celebrates the start of the harvest season and is celebrated by Malayali communities worldwide. Onam, Hindu harvest festival that occurs in the Malayali month of Chingam, which overlaps with August and September in the Gregorian calendar. The 10-day harvest festival celebrates the Malayali New Year and is observed predominantly in the southern Indian state of Kerala.
