Hellnar, Iceland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Hellnar, Western Region, Iceland, is known for the Snæfellsjokull National Park and its stunning coastal landscapes. The best time to travel to Hellnar, Iceland, is from 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!