The best time to go to Mandapam is between October and March when the weather is most pleasant.
During these months, the monsoon season has passed, and the humidity levels are lower, making it much more comfortable for exploring. You can expect mild temperatures and clear skies, which are ideal for outdoor activities and sightseeing.
This period is particularly good for families looking to enjoy the coastal attractions without the intense heat and heavy rainfall. The calmer seas also make it great for activities like boat trips to nearby islands.