Bildudalur, Iceland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Bildudalur is known for the Icelandic Sea Monster Museum. The best time to travel to Bildudalur, Iceland, is during the summer months of June to August, when the average air temperature is around 10-15°C (50-59°F) and the sea temperature is approximately 8-11°C (46-52°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!