Heeia, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Heeia, Hawaii, United States, is known for the Heeia Fishpond and Heeia State Park. The best time to travel to Heeia, United States, is from April to October, with average air temperatures ranging from 75°F to 85°F and water temperatures around 77°F to 82°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!