Leran, France offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Leran is known for its proximity to the stunning Montsegur Castle and the picturesque Lac de Montbel. The best time to travel to Leran, France, is during late spring to early summer (May to June) when the average air temperature is around 20-25°C (68-77°F) and water temperature in nearby lakes is approximately 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!