Porvoo, Finland offers 16 beaches perfect for sunbathing, surfing, swimming, and more. Sipacate is known for Sipacate-Naranjo National Park, a popular destination for surfing and beach activities. The best time to travel to Porvoo, Finland, is during the summer months of June to August, when the average air temperature is around 15-20°C (59-68°F) and the water temperature is approximately 15°C (59°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!