Thai masam is the 10th month in a traditional calendar followed in Tamil Nadu. Thai Month 2026 begins on January 14 and ends on February 12. The most auspicious days and festivals in the month include – Thai Pongal, Mattu Pongal, Kaanum, Thai Amavasya and Thaipusam.
Pournami and Amavasai
Pournami or full moon in Thai month is on February 1
Thai Amavasai is January 18.
Festival dates in Thai month 2026
Pongal – January 14
Mattu Pongal – January 15
Kaanum – January 16
Mattu Pongal – January 15
Kaanum – January 16
Ratha Saptami - January 25
Thai Karthigai – January 28
Thaipusam – February 1
Thai Karthigai – January 28
Thaipusam – February 1
Ekadasi
January 29.
Muruga Sashti Fasting
January 24
Pradosham
January 16 and January 30
Pillayar Chaturthi Vrat - Ganesh Sankashti Chaturthi Vrat is on February 5, 2026.