The islanders celebrate most of the festivals of the mainland due to the influence of the external society and the development that has taken place. Major festivals are Durga Puja, Pongal, Panguni Uthiram, and Onam. Other important festivals are Mahashivaratri, Janmashtami, Holi, Diwali, Christmas, Good Friday, etc.
The Island Tourism Festival is celebrated every year for 15 days between December and February in Port Blair. Dance performances from the troupes residing in different islands are organized. One of the major attractions at this festival.