Gilleleje, Denmark offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Gilleleje is known for the Gilleleje Harbour and the Gilleleje Museum. The best time to travel to Gilleleje, Denmark, is during the summer months of June to August, when the average air temperature is around 18°C (64°F) and the water temperature is approximately 17°C (63°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!