Paralia Dionysiou, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Paralia Dionysiou is known for its beautiful beaches and proximity to the historical site of Ancient Olynthos. The best time to travel to Paralia Dionysiou, Greece, is from June to September, with average air temperatures around 25-30°C (77-86°F) and water temperatures around 24-27°C (75-81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!