Terga, Algeria offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Terga, Ain Temouchent, Algeria, is known for its beautiful Mediterranean beaches and the nearby historic Roman ruins of Portus Magnus. The best time to travel to Terga, Algeria, is from April to June, when the average air temperature is around 20-25°C (68-77°F) and the water temperature is approximately 18-20°C (64-68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!