Every August, Kerala trades its monsoon greys for a riot of marigold, jasmine and banana-leaf gold. Onam — the state's most beloved festival — is once again trending across India as families, students and the vast Malayali diaspora look up the exact 2026 dates, the Sadya menu and how to lay a perfect Pookalam. This guide answers all of it in one place.
Onam is unusual among Indian festivals: it is a harvest celebration, a myth retold, and a homecoming, all rolled into ten joyful days. Whether you grew up with it or are discovering it for the first time, here is everything you need to know about Onam 2026.
When Is Onam 2026?
Onam falls in the Malayalam month of Chingam, the first month of the Malayalam calendar, which lines up with late August in the Gregorian calendar. The festival spans ten days, starting on Atham and ending on Thiruvonam, the grandest day.
- Atham (Day 1): Sunday, August 16, 2026 — the first Pookalam is laid.
- Thiruvonam (Day 10): Wednesday, August 26, 2026 — the main celebration.
- Thiruvonam Nakshatram: begins around 10:51 PM on August 25 and ends in the early hours of August 27, but festivities are observed on August 26.
The Legend of King Mahabali
At the heart of Onam is the story of Mahabali (Maveli), a wise and generous Asura king under whom, folklore says, Kerala enjoyed a golden age — no lies, no poverty, no discrimination, and everyone treated as equal.
Mahabali's growing power worried the gods. Lord Vishnu took the form of Vamana, a young dwarf Brahmin, and asked the king for three paces of land. When the humble Mahabali agreed, Vamana grew to cosmic size, covering the earth and sky in two steps. For the third, the king offered his own head. Moved by his devotion, Vishnu granted Mahabali one wish: to return to visit his people once a year. That annual homecoming is exactly what Malayalis celebrate as Thiruvonam.
The Ten Days of Onam
Each day of Onam has its own name and mood, and the Pookalam flower carpet grows a little larger and more elaborate as the days pass:
- Atham — the first, simple Pookalam is laid.
- Chithira, Chodhi, Vishakam — homes are cleaned, shopping picks up, and flower carpets expand.
- Anizham — traditionally the day the famous Aranmula snake-boat practice intensifies.
- Thriketa, Moolam — smaller Sadyas begin and cultural events start across towns.
- Pooradam — clay pyramids of Mahabali and Vamana (Onathappan) are placed at the centre of the Pookalam.
- Uthradam — "First Onam," a day of final shopping and preparation.
- Thiruvonam — the tenth and biggest day, with the grand Sadya and family gatherings.
Onam Sadya: The Grand Feast
No Onam is complete without the Sadya — a purely vegetarian banquet served on a fresh banana leaf and eaten with the hands. A traditional Sadya can carry 20 to 26 dishes or more, arranged in a specific order on the leaf. Popular items include:
- Rice with sambar, rasam and parippu (dal) with ghee.
- Avial, thoran and olan — Kerala's signature vegetable sides.
- Pachadi and kichadi, tangy yoghurt-based dishes.
- Pickles, banana chips, sharkara varatti and crisp papadam.
- Payasam — the sweet finale, often ada pradhaman or palada.
If you love exploring regional cuisine, Onam's Sadya sits proudly among India's greatest food traditions — our roundup of the top 10 Indian foods shows just how diverse the country's plate really is.
How Onam Is Celebrated
Beyond the feast, Onam bursts with colour, sport and performance. The best-known traditions include:
- Pookalam: intricate floral carpets laid at doorsteps, growing daily through the ten days.
- Vallamkali: the spectacular snake-boat races, including the celebrated Nehru Trophy and Aranmula regattas, where long canoes with dozens of rowers race to drumbeats.
- Pulikali: the joyful "tiger dance" of Thrissur, with performers painted as tigers and hunters.
- Onakkodi: new clothes gifted to family members on Thiruvonam.
- Thiruvathira Kali & folk arts: graceful group dances, Kummattikali masks and temple music.
Onam is a wonderful reason to visit "God's Own Country," and if you are planning a monsoon escape, our list of the top 10 hill stations in India in 2026 includes several Kerala gems worth pairing with the festivities.
Onam Beyond Kerala
Onam is a public holiday in Kerala and Lakshadweep, but its reach stretches far wider. Malayali communities in the Gulf, the United States, the United Kingdom, Singapore and Australia host their own Sadyas, Pookalam contests and cultural nights, turning the festival into a global celebration of Kerala's identity.
It also arrives in a busy festive stretch. August 2026 is packed with celebration — from India's 80th Independence Day to Krishna Janmashtami — making it one of the most vibrant months on the Indian calendar.
Frequently Asked Questions
What is the date of Onam 2026?
Onam 2026 is a ten-day festival that begins with Atham on August 16 and culminates on Thiruvonam, the main day, on August 26, 2026. The Thiruvonam Nakshatram runs from the night of August 25 into the early hours of August 27, but celebrations are held on August 26.
Why is Onam celebrated?
Onam is Kerala's harvest festival and marks the annual homecoming of King Mahabali, a benevolent ruler under whom, legend says, Kerala enjoyed a golden age of equality and abundance. Malayalis welcome him back each year with feasts, flowers and festivities.
What is Onam Sadya?
Onam Sadya is a grand vegetarian feast served on a banana leaf, traditionally featuring 20 to 26 or more dishes eaten with rice — from sambar, avial and thoran to pickles, banana chips and the sweet payasam. It is the centrepiece of Thiruvonam.
What are the ten days of Onam called?
The ten days are Atham, Chithira, Chodhi, Vishakam, Anizham, Thriketa, Moolam, Pooradam, Uthradam and Thiruvonam. The Pookalam flower carpet grows larger every day, reaching its grandest form on Thiruvonam.
Is Onam a religious or cultural festival?
Onam is primarily a cultural and harvest festival celebrated by Malayalis of all faiths. It has roots in the Hindu Mahabali and Vamana legend, but its feasts, flower carpets, boat races and new clothes make it an inclusive celebration of Kerala's shared identity.