Kalagachhia, India offers 1 beach perfect for sunbathing, surfing, swimming, and more. Kalagachhia, West Bengal, India, is known for its proximity to the Sundarbans, a UNESCO World Heritage Site and the largest mangrove forest in the world. The best time to travel to Kalagachhia, India, is from November to February, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 22-25°C (72-77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!