In 2025, Onam (Thiru Onam Day) will be observed on Friday, 5th September . Onam is the biggest festival of Kerala, celebrated to welcome the legendary King Mahabali whose spirit is believed to visit Kerala during this time. Onam 2025 Thiruvonam Date , History, Significance | When is Onam?: This year, Onam festivities will begin on August 26, 2025 , and will conclude with Thiruvonam falling on Friday, September 5, 2025. Planning to enjoy Onam 2025 in Kerala? Get all details about dates , traditions, Pookalam, Onasadya, and travel tips to make your trip smooth and memorable. When is Onam 2025? This year, Onam will be celebrated from August 26 to September 5, 2025 . The 10-day-long festival is known by different names for each day. The festival concludes with Thiruvonam, which will fall on September 5, 2025.
