Plevenon, France offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Plevenon is known for the Fort la Latte, a stunning medieval castle perched on the cliffs overlooking the English Channel. The best time to travel to Plevenon, France, is during the summer months of June to August, when the average air temperature is around 18-22°C (64-72°F) and the water temperature is approximately 17-20°C (63-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!