Cox's Bazar, Bangladesh offers 15 beaches perfect for sunbathing, surfing, swimming, and more. Cox's Bazar is known for having the longest natural sea beach in the world. The best time to travel to Cox's Bazar, Bangladesh, is from November to February, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 26°C (79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!