Agiassos, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Agiassos is known for its picturesque beaches and traditional Greek architecture. The best time to travel to Agiassos, Greece, is from June to September, with average air temperatures around 25-30°C (77-86°F) and water temperatures about 23-26°C (73-79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!