Blooming Valley, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Blooming Valley, Pennsylvania, United States, is known for its proximity to the scenic Allegheny National Forest. The best time to travel to Blooming Valley, United States, is in late spring, around May, when the average air temperature is about 65°F (18°C) and water temperature is around 55°F (13°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!