Sithonia, Greece offers 53 beaches perfect for sunbathing, surfing, swimming, and more. Sithonia is known for its stunning beaches like Kavourotripes and the picturesque village of Nikiti. The best time to travel to Sithonia, Greece, is from June to September, when the average air temperature is around 25-30°C (77-86°F) and the water temperature is approximately 24-26°C (75-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!