The Tamil Month Aadi is a month that has lot of festivals. During the month of Thai(Jan-Feb) and Aadi(Jul-Aug) the Sun changes directions.

Aadi month is special for all Ammans. It is celebrated in a grand manner in all Amman temples (The Famous temples as well as not so popular temples). Sundays, Tuesdays and Fridays of this month are auspicious.Every Friday is celebrated as "Aadi Velli". The new moon day of this month is celebrated as "Aadi Amavasai".The pooram star of this month is celebrated as "Aadi pooram".The 18th day of this month is celebrated as "Aadi perukku" or "Pathinettam perukku". Since the rains are abundant in this month, the rivers are filled with water.

Kirthigai star of this month is celebrated as Aadi Kirthigai and is considered a very auspicious day for the worship of Lord Muruga.