Onam 2100 Date — Wednesday, September 15, 2100
When is Onam in 2100? Onam 2100 falls on Wednesday, September 15, 2100.
Observance: Onam (Thiruvonam). City calendars may vary slightly by sunrise and amanta or purnimanta tradition — confirm with your local mandir.
Onam 2100 calendar — all ten days from Atham
| Day | Name | Star | Date & day |
|---|---|---|---|
| Day 1 | Atham | Hasta | Mon, 6 September 2100 |
| Day 2 | Chithira | Chitra | Tue, 7 September 2100 |
| Day 3 | Chodhi | Swati | Wed, 8 September 2100 |
| Day 4 | Vishakam | Vishakha | Thu, 9 September 2100 |
| Day 5 | Anizham | Anuradha | Fri, 10 September 2100 |
| Day 6 | Thriketta | Jyeshtha | Sat, 11 September 2100 |
| Day 7 | Moolam | Mula | Sun, 12 September 2100 |
| Day 8 | Pooradam | Purva Ashadha | Mon, 13 September 2100 |
| Day 9 | Uthradam (First Onam) | Uttara Ashadha | Tue, 14 September 2100 |
| Day 10 | Thiruvonam | Shravana | Wed, 15 September 2100 |
Onam follows the Malayalam solar calendar: Thiruvonam is the day the Shravana (Thiruvonam) nakshatra falls in the month of Chingam, and the ten days are counted back from it to Atham.
Why we celebrate
Kerala harvest festival welcoming righteous King Mahabali; Vamana-Vishnu legend.
How it is celebrated
Pookalam, Onam sadya, boat races, Thiruvonam feast.
Puja timing
Thiruvonam day main feast and puja; ten-day Uthradam to Thiruvonam.
Foods & offerings
Onam sadya — 20+ items on banana leaf: avial, olan, payasam.
Rituals
- Daily pookalam.
- Wear kasavu mundu/sari.
- Community sadya and games.
Onam dates by year
| Year | Date & day |
|---|---|
| 2099 | Sat, 29 August 2099 |
| 2100 | Wed, 15 September 2100 |
Hindu festivals around Onam 2100
- Anant Chaturdashi 2100 date — Fri, 17 September 2100
- Ganesh Chaturthi 2100 date — Tue, 7 September 2100
- Hartalika Teej 2100 date — Mon, 6 September 2100
- Dahi Handi 2100 date — Sun, 29 August 2100
- Janmashtami 2100 date — Sat, 28 August 2100
- Mahalaya Amavasya 2100 date — Sun, 3 October 2100
- Sharad Navratri 2100 date — Mon, 4 October 2100
- Durga Puja 2100 date — Sun, 10 October 2100
- Raksha Bandhan 2100 date — Thu, 19 August 2100
- Dussehra 2100 date — Tue, 12 October 2100
- Sharad Purnima 2100 date — Mon, 18 October 2100
- Varalakshmi Vratam 2100 date — Fri, 13 August 2100
