Portiragnes, France offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Portiragnes is known for its Canal du Midi, a UNESCO World Heritage Site. The best time to travel to Portiragnes, France, is from June to September, with average air temperatures around 75°F (24°C) and water temperatures near 72°F (22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!