October 2027 begins with Navarathiri on Friday 1 October. Saraswathi Pooja and Ayudha Pooja fall on Friday 8 October, Aippasi begins on Monday 18 October, and Deepavali is on Thursday 28 October.
Purattasi 14–30 covers October 1–17. It began on 18 September and has 30 days.
Aippasi 1–14 covers October 18–31. The month begins on Monday and has 30 days.
Plavanga (பிலவங்க), which began on Chithirai 1, 2027.
Each festival is marked with a dot on the calendar above, with its Tamil date.
| Date | Day | Festival | Type |
|---|---|---|---|
| 1 Oct புரட்டாசி 14 | Friday வெள்ளி | நவராத்திரி ஆரம்பம் Navarathiri begins Golu is set up for nine nights. | Festival |
| 2 Oct புரட்டாசி 15 | Saturday சனி | காந்தி ஜெயந்தி Gandhi Jayanthi National holiday. | National holiday |
| 8 Oct புரட்டாசி 21 | Friday வெள்ளி | சரஸ்வதி பூஜை / ஆயுத பூஜை Saraswathi Pooja / Ayudha Pooja Tools, books and vehicles are worshipped. | Tamil Nadu holiday |
| 9 Oct புரட்டாசி 22 | Saturday சனி | விஜயதசமி Vijayadasami Vidyarambam for young children. | Tamil Nadu holiday |
| 28 Oct ஐப்பசி 11 | Thursday வியாழன் | தீபாவளி Deepavali Celebrated on Naraka Chaturdasi in Tamil Nadu, a day before North India’s Diwali. | Tamil Nadu holiday |
Saraswathi Pooja and Ayudha Pooja on Friday 8 October and Vijayadasami on Saturday 9 October run straight into the weekend.
Tamil Nadu celebrates Deepavali on Thursday 28 October, on Naraka Chaturdasi, a day before Diwali in North India.
Purattasi 14 to 30 runs from October 1 to October 17; Aippasi 1 to 14 runs from October 18 to October 31.
October 1, 2027 is Purattasi 14 (புரட்டாசி 14), a Friday (வெள்ளி).
Aippasi (ஐப்பசி) begins on Monday, October 18, 2027 and lasts 30 days in Tamil calendars that follow the Vakya panchangam.
Navarathiri begins (நவராத்திரி ஆரம்பம்) is on Friday, October 1, 2027. Golu is set up for nine nights.
Saraswathi Pooja / Ayudha Pooja (சரஸ்வதி பூஜை / ஆயுத பூஜை) is on Friday, October 8, 2027. Tools, books and vehicles are worshipped.
Vijayadasami (விஜயதசமி) is on Saturday, October 9, 2027. Vidyarambam for young children.
October 2027 falls in the Tamil year Plavanga (பிலவங்க).
September 2027 · October 2027 · November 2027 — or see the 2027 Tamil calendar and the October 2027 calendar with India's holidays.