Karwia, Poland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Karwia is known for its beautiful sandy beaches along the Baltic Sea. The best time to travel to Karwia, Poland, is during the summer months of June to August, when the average air temperature is around 18-22°C (64-72°F) and the Baltic Sea water temperature is approximately 17-20°C (63-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!