Mimizan, France offers 10 beaches perfect for sunbathing, surfing, swimming, and more. Mimizan is known for its beautiful beaches along the Atlantic Ocean and the scenic Mimizan Plage. The best time to travel to Mimizan, France, is from June to September, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 19-22°C (66-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!