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Onam 2025 Date — Friday, September 5, 2025

When is Onam in 2025? Onam 2025 falls on Friday, September 5, 2025.

Observance: Onam (Thiruvonam). City calendars may vary slightly by sunrise and amanta or purnimanta tradition — confirm with your local mandir.

Onam 2025 calendar — all ten days from Atham

Onam 2025: the ten Onam days and their nakshatra
DayNameStarDate & day
Day 1AthamHastaWed, 27 August 2025
Day 2ChithiraChitraThu, 28 August 2025
Day 3ChodhiSwatiFri, 29 August 2025
Day 4VishakamVishakhaSat, 30 August 2025
Day 5AnizhamAnuradhaSun, 31 August 2025
Day 6ThrikettaJyeshthaMon, 1 September 2025
Day 7MoolamMulaTue, 2 September 2025
Day 8PooradamPurva AshadhaWed, 3 September 2025
Day 9Uthradam (First Onam)Uttara AshadhaThu, 4 September 2025
Day 10ThiruvonamShravanaFri, 5 September 2025

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

  1. Daily pookalam.
  2. Wear kasavu mundu/sari.
  3. Community sadya and games.

Onam dates by year

When is Onam — 2024 to 2028
YearDate & day
2024Sun, 15 September 2024
2025Fri, 5 September 2025
2026Wed, 26 August 2026
2027Sun, 12 September 2027
2028Fri, 1 September 2028

Hindu festivals around Onam 2025