Peyriac de Mer, France offers 1 beach perfect for sunbathing, surfing, swimming, and more. Peyriac de Mer is known for the Etang de Bages-Sigean, a scenic lagoon that attracts nature enthusiasts and birdwatchers. The best time to travel to Peyriac de Mer, France, is from June to September, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 22°C (72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!