Suournesjabar, Iceland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Suournesjabar is known for the Blue Lagoon, a famous geothermal spa. The best time to travel to Suournesjabar, Iceland, is during the summer months of June to August, when the average air temperature is around 50-55°F (10-13°C) and the water temperature is approximately 46-50°F (8-10°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!