Kalpakkam, India offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Kalpakkam is known for the Madras Atomic Power Station and its proximity to the UNESCO World Heritage Site of Mahabalipuram. The best time to travel to Kalpakkam, India, is from November to February, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 27°C (81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!