Thoum, Lebanon offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Thoum, North, Lebanon, is known for its proximity to the historic Monastery of Qozhaya and the scenic Qadisha Valley. The best time to travel to Thoum, Lebanon, is in late spring (May) when the average air temperature is around 24°C (75°F) and the Mediterranean Sea temperature is approximately 21°C (70°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!