Sunny Beach, Bulgaria offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Sunny Beach is known for its vibrant nightlife and expansive sandy beaches. The best time to travel to Sunny Beach, Bulgaria, is from June to September, with average air temperatures around 25-30°C (77-86°F) and water temperatures around 23-26°C (73-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!