Cagnes sur Mer, France offers 8 beaches perfect for sunbathing, surfing, swimming, and more. Cagnes sur Mer is known for the Renoir Museum, the medieval village of Haut-de-Cagnes, and the Hippodrome de la Cote d'Azur. The best time to travel to Cagnes-sur-Mer, France, is from May to September, with average air temperatures ranging from 20°C to 28°C and water temperatures from 18°C to 24°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!