Padasjoki, Finland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Padasjoki is known for Päijänne National Park and Lake Päijänne. The best time to travel to Padasjoki, 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 in lakes is approximately 15-20°C (59-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!