Arniston, South Africa offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Arniston is known for its picturesque white-washed fishermen's cottages and the nearby Waenhuiskrans Cave. The best time to travel to Arniston, South Africa, is from November to March, with average air temperatures around 20-25°C (68-77°F) and water temperatures around 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!