Sahline, Tunisia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sahline, Monastir, Tunisia, is known for its proximity to the historic Ribat of Monastir and the beautiful Monastir Beach. The best time to travel to Sahline, Tunisia, is from May to October, with average air temperatures ranging from 20°C to 30°C and water temperatures around 22°C to 26°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!