Thiva, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Thiva is known for the ancient city of Thebes, the birthplace of the mythical hero Hercules, and its archaeological museum. The best time to travel to Thiva, Greece, is from May to September, with average air temperatures ranging from 20°C to 30°C and water temperatures around 22°C to 26°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!