Aleria, France offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Aleria is known for its ancient Roman ruins and the Aleria Archaeological Museum. The best time to travel to Aleria, France, is from June to September, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 73°F (23°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!