Inga, Finland offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Inga, Southern Finland, is known for the Fagervik Manor and its historical ironworks village. The best time to travel to Inga, Finland, is during the summer months of June to August, when the average air temperature is around 60-70°F (15-21°C) and the water temperature is approximately 60°F (16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!