Kato Achaia, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Kato Achaia is known for its proximity to the beautiful beaches of the Gulf of Patras and the historic site of the ancient city of Dyme. The best time to travel to Kato Achaia, Greece, is from May to September, with average air temperatures ranging from 25°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!