Le Portel, France offers 1 beach perfect for sunbathing, surfing, swimming, and more. Le Portel is known for its beautiful beaches and coastal scenery. The best time to travel to Le Portel, France, is from June to September, with average air temperatures around 60-70°F (15-21°C) and water temperatures around 60-64°F (16-18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!