Buoir, Iceland offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Buoir, Garosbrun, Iceland, is known for its stunning views of the Northern Lights and the nearby Vatnajokull National Park. The best time to travel to Buoir, Iceland, is from June to August, when the average air temperature is around 10-15°C (50-59°F) and the water temperature is approximately 8-12°C (46-54°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!