- Jan 5 Pausha Putrada Ekadashi Festival
- Jan 7 Shukla Pradosh Vrat Festival
- Jan 9 Purnima Vrat Festival
- Jan 13 Sakat Chauth Festival
- Jan 13 Sankashti Chaturthi Festival
- Jan 15 Makar Sankranti Festival
- Jan 15 Thai Pongal Festival
- Jan 16 Makar Sankranti Festival
- Jan 16 Thai Pongal Festival
- Jan 17 Makar Sankranti Festival
- Jan 17 Thai Pongal Festival
- Jan 18 Makar Sankranti Festival
- Jan 18 Thai Pongal Festival
- Jan 19 Makar Sankranti Festival
- Jan 19 Thai Pongal Festival
- Jan 20 Vijaya Ekadashi Festival
- Jan 22 Krishna Pradosh Vrat Festival
- Jan 22 Masik Shivaratri Festival
- Jan 24 Mauni Amavas Festival
- Jan 24 Amavasya Festival
- Jan 26 Republic Day Festival
- Jan 27 Vinayaka Chaturthi Festival
- Jan 28 Vasant Panchami Festival
- Jan 31 Ratha Saptami Festival
- Feb 1 Bhishma Ashtami Festival
- Feb 4 Jaya Ekadashi Festival
- Feb 6 Shukla Pradosh Vrat Festival
- Feb 8 Purnima Vrat Festival
- Feb 12 Sankashti Chaturthi Festival
- Feb 13 Kumbha Sankranti Festival
- Feb 14 Kumbha Sankranti Festival
- Feb 15 Kumbha Sankranti Festival
- Feb 16 Kumbha Sankranti Festival
- Feb 17 Kumbha Sankranti Festival
- Feb 18 Papamochani Ekadashi Festival
- Feb 20 Maha Shivaratri Festival
- Feb 20 Krishna Pradosh Vrat Festival
- Feb 20 Masik Shivaratri Festival
- Feb 22 Amavasya Festival
- Feb 26 Vinayaka Chaturthi Festival
- Mar 6 Amalaki Ekadashi Festival
- Mar 8 Shukla Pradosh Vrat Festival
- Mar 9 Holi Festival
- Mar 9 Holika Dahan Festival
- Mar 10 Purnima Vrat Festival
- Mar 13 Sankashti Chaturthi Festival
- Mar 15 Meena Sankranti Festival
- Mar 16 Meena Sankranti Festival
- Mar 17 Meena Sankranti Festival
- Mar 17 Sheetala Ashtami Festival
- Mar 18 Meena Sankranti Festival
- Mar 19 Meena Sankranti Festival
- Mar 20 Varuthini Ekadashi Festival
- Mar 22 Krishna Pradosh Vrat Festival
- Mar 22 Masik Shivaratri Festival
- Mar 24 Amavasya Festival
- Mar 25 Chaitra Navratri Festival
- Mar 25 Gudi Padwa Festival
- Mar 25 Ugadi Festival
- Mar 27 Gangaur Festival
- Mar 28 Vinayaka Chaturthi Festival
- Mar 30 Yamuna Chhath Festival
- Apr 2 Ram Navami Festival
- Apr 2 Swaminarayan Jayanti Festival
- Apr 3 Ram Navami Festival
- Apr 3 Swaminarayan Jayanti Festival
- Apr 5 Kamada Ekadashi Festival
- Apr 6 Shukla Pradosh Vrat Festival
- Apr 8 Hanuman Jayanti Festival
- Apr 8 Purnima Vrat Festival
- Apr 12 Sankashti Chaturthi Festival
- Apr 15 Mesha Sankranti Festival
- Apr 16 Mesha Sankranti Festival
- Apr 17 Mesha Sankranti Festival
- Apr 18 Mesha Sankranti Festival
- Apr 18 Apara Ekadashi Festival
- Apr 19 Mesha Sankranti Festival
- Apr 20 Krishna Pradosh Vrat Festival
- Apr 21 Masik Shivaratri Festival
- Apr 22 Amavasya Festival
- Apr 25 Akshaya Tritiya Festival
- Apr 26 Parashurama Jayanti Festival
- Apr 27 Vinayaka Chaturthi Festival
- Apr 30 Ganga Saptami Festival
- May 2 Sita Navami Festival
- May 4 Mohini Ekadashi Festival
- May 6 Narasimha Jayanti Festival
- May 6 Shukla Pradosh Vrat Festival
- May 8 Buddha Purnima Festival
- May 8 Purnima Vrat Festival
- May 11 Sankashti Chaturthi Festival
- May 15 Vrishabha Sankranti Festival
- May 16 Vrishabha Sankranti Festival
- May 17 Vrishabha Sankranti Festival
- May 18 Vrishabha Sankranti Festival
- May 18 Yogini Ekadashi Festival
- May 19 Vrishabha Sankranti Festival
- May 20 Krishna Pradosh Vrat Festival
- May 20 Masik Shivaratri Festival
- May 20 Vrishabha Sankranti Festival
- May 22 Vat Savitri Vrat Festival
- May 22 Amavasya Festival
- May 22 Shani Jayanti Festival
- May 26 Vinayaka Chaturthi Festival
- May 27 Vinayaka Chaturthi Festival
- Jun 2 Ganga Dussehra Festival
- Jun 4 Shukla Pradosh Vrat Festival
- Jun 6 Vat Purnima Vrat Festival
- Jun 6 Purnima Vrat Festival
- Jun 9 Sankashti Chaturthi Festival
- Jun 16 Kamika Ekadashi Festival
- Jun 16 Mithuna Sankranti Festival
- Jun 17 Mithuna Sankranti Festival
- Jun 18 Krishna Pradosh Vrat Festival
- Jun 18 Mithuna Sankranti Festival
- Jun 19 Krishna Pradosh Vrat Festival
- Jun 19 Masik Shivaratri Festival
- Jun 19 Mithuna Sankranti Festival
- Jun 20 Mithuna Sankranti Festival
- Jun 21 Amavasya Festival
- Jun 23 Jagannath Rathyatra Festival
- Jun 25 Vinayaka Chaturthi Festival
- Jul 2 Devshayani Ekadashi Festival
- Jul 5 Guru Purnima Festival
- Jul 5 Purnima Vrat Festival
- Jul 9 Sankashti Chaturthi Festival
- Jul 16 Aja Ekadashi Festival
- Jul 17 Karka Sankranti Festival
- Jul 18 Karka Sankranti Festival
- Jul 18 Krishna Pradosh Vrat Festival
- Jul 18 Masik Shivaratri Festival
- Jul 19 Karka Sankranti Festival
- Jul 19 Masik Shivaratri Festival
- Jul 20 Amavasya Festival
- Jul 20 Karka Sankranti Festival
- Jul 21 Karka Sankranti Festival
- Jul 23 Hariyali Teej Festival
- Jul 24 Vinayaka Chaturthi Festival
- Jul 25 Nag Panchami Festival
- Jul 31 Shravana Putrada Ekadashi Festival
- Aug 2 Shukla Pradosh Vrat Festival
- Aug 6 Kajari Teej Festival
- Aug 7 Sankashti Chaturthi Festival
- Aug 15 Independence Day Festival
- Aug 15 Indira Ekadashi Festival
- Aug 17 Krishna Pradosh Vrat Festival
- Aug 17 Masik Shivaratri Festival
- Aug 17 Simha Sankranti Festival
- Aug 18 Simha Sankranti Festival
- Aug 19 Amavasya Festival
- Aug 19 Simha Sankranti Festival
- Aug 20 Simha Sankranti Festival
- Aug 21 Simha Sankranti Festival
- Aug 22 Hartalika Teej Festival
- Aug 22 Simha Sankranti Festival
- Aug 23 Vinayaka Chaturthi Festival
- Aug 24 Rishi Panchami Festival
- Aug 25 Balarama Jayanti Festival
- Aug 29 Parsva Ekadashi Festival
- Aug 31 Shukla Pradosh Vrat Festival
- Sep 1 Anant Chaturdashi Festival
- Sep 2 Purnima Vrat Festival
- Sep 3 Pitrupaksha Festival
- Sep 6 Sankashti Chaturthi Festival
- Sep 13 Rama Ekadashi Festival
- Sep 15 Krishna Pradosh Vrat Festival
- Sep 16 Masik Shivaratri Festival
- Sep 17 Sarva Pitru Amavasya Festival
- Sep 17 Amavasya Festival
- Sep 17 Kanya Sankranti Festival
- Sep 18 Sharad Navratri Festival
- Sep 18 Kanya Sankranti Festival
- Sep 19 Kanya Sankranti Festival
- Sep 20 Kanya Sankranti Festival
- Sep 21 Kanya Sankranti Festival
- Sep 21 Vinayaka Chaturthi Festival
- Sep 22 Kanya Sankranti Festival
- Sep 24 Durga Ashtami Festival
- Sep 25 Maha Navami Festival
- Sep 26 Dussehra Festival
- Sep 29 Shukla Pradosh Vrat Festival
- Oct 1 Sharad Purnima Festival
- Oct 1 Purnima Vrat Festival
- Oct 2 Gandhi Jayanti Festival
- Oct 5 Karva Chauth Festival
- Oct 5 Sankashti Chaturthi Festival
- Oct 6 Karva Chauth Festival
- Oct 6 Sankashti Chaturthi Festival
- Oct 10 Ahoi Ashtami Festival
- Oct 13 Utpanna Ekadashi Festival
- Oct 14 Govatsa Dwadashi Festival
- Oct 15 Narak Chaturdashi Festival
- Oct 15 Krishna Pradosh Vrat Festival
- Oct 15 Masik Shivaratri Festival
- Oct 16 Diwali Festival
- Oct 17 Amavasya Festival
- Oct 18 Govardhan Puja Festival
- Oct 18 Tula Sankranti Festival
- Oct 19 Bhaiya Dooj Festival
- Oct 19 Tula Sankranti Festival
- Oct 20 Tula Sankranti Festival
- Oct 20 Vinayaka Chaturthi Festival
- Oct 21 Tula Sankranti Festival
- Oct 22 Chhath Puja Festival
- Oct 22 Tula Sankranti Festival
- Oct 26 Kansa Vadh Festival
- Oct 27 Devutthana Ekadashi Festival
- Oct 28 Tulasi Vivah Festival
- Oct 29 Shukla Pradosh Vrat Festival
- Oct 31 Purnima Vrat Festival
- Nov 4 Sankashti Chaturthi Festival
- Nov 8 Kalabhairav Jayanti Festival
- Nov 12 Saphala Ekadashi Festival
- Nov 14 Masik Shivaratri Festival
- Nov 15 Amavasya Festival
- Nov 16 Govardhan Puja Festival
- Nov 17 Bhaiya Dooj Festival
- Nov 17 Vrishchika Sankranti Festival
- Nov 18 Vrishchika Sankranti Festival
- Nov 19 Vinayaka Chaturthi Festival
- Nov 19 Vrishchika Sankranti Festival
- Nov 20 Vrishchika Sankranti Festival
- Nov 21 Vrishchika Sankranti Festival
- Nov 24 Kansa Vadh Festival
- Nov 25 Devutthana Ekadashi Festival
- Nov 26 Tulasi Vivah Festival
- Nov 27 Shukla Pradosh Vrat Festival
- Nov 30 Purnima Vrat Festival
- Dec 4 Sankashti Chaturthi Festival
- Dec 8 Kalabhairav Jayanti Festival
- Dec 11 Saphala Ekadashi Festival
- Dec 13 Krishna Pradosh Vrat Festival
- Dec 13 Masik Shivaratri Festival
- Dec 15 Amavasya Festival
- Dec 17 Dhanu Sankranti Festival
- Dec 18 Dhanu Sankranti Festival
- Dec 18 Vinayaka Chaturthi Festival
- Dec 19 Vivah Panchami Festival
- Dec 19 Dhanu Sankranti Festival
- Dec 20 Dhanu Sankranti Festival
- Dec 25 Gita Jayanti Festival
- Dec 25 Mokshada Ekadashi Festival
- Dec 27 Shukla Pradosh Vrat Festival
- Dec 29 Dattatreya Jayanti Festival
- Dec 29 Purnima Vrat Festival
📖 About the Tamil Calendar
Frequently Asked Questions
Which Tamil festivals always fall on the same Gregorian date every year?
Solar-anchored Tamil festivals repeat within a day or two of a fixed Gregorian date because they are tied to the Sun's transit into a zodiac sign (sankranti). Puthandu, the Tamil New Year, always falls on Chithirai 1 — April 14 (occasionally April 13 in a Gregorian leap year). Pongal always falls on Thai 1 — January 14 (occasionally January 15). Aadi Perukku always falls on Aadi 18 — approximately August 3 or 4. All three are solar, so they are essentially fixed. Nakshatra-anchored festivals shift annually: Vaikasi Visakam, Vaikuntha Ekadasi, Karthigai Deepam, Thai Poosam, Maasi Magam, and Panguni Uthiram depend on when the moon reaches a specific nakshatra within the solar month, so the Gregorian date varies by up to two weeks from year to year.
What is Aadi Perukku and why is it celebrated on Aadi 18?
Aadi Perukku — also written Aadi Pathinettam Perukku — falls on the 18th day of the Tamil solar month Aadi, typically August 3 or 4. 'Perukku' means overflow or rising, and the festival marks the peak of the monsoon when Tamil rivers — the Cauvery, Vaigai, and Tamraparni — are in full flood. Devotees worship at riverbanks, offer puja to the waters, and pray for continued rains and agricultural abundance. Tamil women wear new clothes, prepare nine-grain rice (kama arisi), and visit riversides or water bodies. Major puja spots include Cauvery ghats at Tiruchirappalli and Kumbakonam, and the Vaigai banks at Madurai. The 18th day was likely chosen as the traditional peak of monsoon water levels in the Cauvery basin. The festival is specific to Tamil tradition — it does not have a direct equivalent in Telugu or Kannada calendars, though Bonalu in Telangana shares a general monsoon-season goddess-worship character.
How does the Margazhi Music Season relate to the Tamil calendar?
The Madras Music Season is a deliberate alignment with Margazhi's devotional intensity. Carnatic music sabhas in Mylapore, Triplicane, T Nagar, and Alwarpet run hundreds of concerts through December and into early January — the full span of Tamil month Margazhi. The season is effectively the Carnatic calendar's annual festival, with top performers and young artists all presenting during these weeks. The connection to Margazhi is theological: classical Carnatic music grew from the Bhakti movement and its temple music tradition, and Margazhi is when that devotional energy is highest. Temple concerts, divya prabandham recitations, and sabha performances all occur within the same window. Vaikuntha Ekadasi during Margazhi — when Srirangam's Paramapada Vaasal is opened — is the single largest gathering in the Tamil Vaishnava year. The latest sunrise of the Tamil year also falls in Margazhi, which is why pre-dawn devotional slots (4-6 AM) are routinely filled in this month.
What is the difference between Tamil and Telugu or Kannada calendars?
All three calendars share the same sixty-year name cycle, use Lahiri ayanamsa, and interweave solar and lunar elements — but the month-naming system diverges. Tamil uses solar months: Chithirai through Panguni, named for the rashi the Sun occupies. Telugu and Kannada use lunar months: Chaitra, Vaisakha, Jyaistha, Ashadha, Shravana, Bhadrapada, Ashvina, Kartika, Margashirsha, Pausha, Magha, Phalguna — the same names as the Hindu Amanta calendar. Telugu and Kannada New Years (Ugadi / Yugadi) fall on Chaitra Shukla Pratipada, the lunar new moon of Chaitra — typically late March or early April, varying by the lunar cycle. Tamil New Year (Puthandu) falls on Chithirai 1 — the fixed solar Mesha sankranti, April 14 — a different anchor entirely. A festival like Vinayaka Chaturthi is observed in all three traditions but called by different names and framed by different month labels.
Why is the year called Vishvavasu in 2026?
Tamil years cycle through sixty Sanskrit names — a system shared with Kannada, Telugu, and to some extent the broader South Indian astrological tradition. The sixty names in sequence are Prabhava, Vibhava, Shukla, Pramoda, Prajapati, Angirasa, Shrimukha, Bhava, Yuva, Dhatri … and so on to the sixtieth, Kshaya, after which the cycle restarts from Prabhava. Vishvavasu is the forty-second year in this sequence. The Tamil year 2026-2027 is Vishvavasu because that is where the cycle lands; it began at Mesha sankranti on April 14, 2026 and will end at Mesha sankranti on April 14, 2027. The year that follows will be Parabhava (the forty-third). The previous occurrence of Vishvavasu was 1965-1966; the next will be 2086-2087. This sixty-year cycle is entirely distinct from Vikram Samvat, which counts continuously.
When is Karthigai Deepam in 2026 and what happens at Tiruvannamalai?
Karthigai Deepam falls on the Krittika nakshatra day closest to the full moon of Tamil month Karthigai — typically in late November or early December. In 2026 it falls in late November. Across Tamil Nadu, households light rows of clay oil lamps (vilakku) at dusk, placed along compound walls, doorsteps, and windowsills, creating an avenue of light. At Tiruvannamalai in the Arunachala hill country, the Mahadeepam — a giant oil lamp flame — is lit on the summit of Arunachala mountain to mark the moment of Krittika nakshatra on the full moon night. Pilgrims circumambulate the mountain (the 14-km Girivalam) through the night. The theological significance at Tiruvannamalai is distinct from Diwali (which is Kartika Amavasya, a month earlier): Karthigai Deepam commemorates Shiva's manifestation as an infinite pillar of light (the Jyotirlinga). The Chidambaram and Thiruvannamalai temples both hold major deepam festivals on this day.