Hamundarstadhir, Iceland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Hamundarstadhir is known for its proximity to the scenic Lagarfljot lake and the mystical Hallormsstadhur National Forest. The best time to travel to Hamundarstadhir, 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 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!