Mark your calendar now and plan a trip to Madurai to witness the grand Float Festival in 2020. Madurai Float Festival is one of the grandest festivals of South India, which is observed every year on the full moon night of the Tamil month, Thai, which falls between mid-January and mid-February. Madurai Float Festival is one of the most remarkable festivals of Madurai, celebrated with lights, lamps, fireworks, and richness of culture and traditions.