Avani (month)

Avani is the fifth month of the Tamil calendar. The name of the month is derived from the position of the Moon near the Thiruvonam nakshatra on the pournami day. The month corresponds to kar kaalam and falls in August-September in the Gregorian calendar.
In the Hindu lunar calendar, it corresponds to the fifth month of Shravana, falling in the Gregorian months of July-August. In the Hindu solar calendar, it corresponds to the fifth month of Simha and begins with the Sun's entry into Leo. In the Vaishnav calendar, it corresponds to the fifth month of Sridhara.

Festivals

Gokulashtami marks the birth of Hindu god Krishna and is celebrated on the Ashtami thithi of Krishna Paksha. It is one of the major Hindu festivals, especially those following Vaishnava traditions.
Vinayakar Chaturthi is a Hindu festival that celebrates the birthday of god Ganesha. It is observed on the Chaturthi thithi of Shukla Paksha. The festival is marked by the installation of Ganesha idols in homes and public pandals, daily prayers, offerings, and devotional singing. The idols are immersed in a body of water symbolising his return to his heavenly abode.
On the Purnima day, certain communities such as Brahmins celebrate Avani avittam and perform rituals associated with Upakarma. Men change their sacred thread and begin to don a new one on the day annually.