Knysna, South Africa offers 10 beaches perfect for sunbathing, surfing, swimming, and more. Knysna is known for the Knysna Heads, Knysna Lagoon, and the Knysna Oyster Festival. The best time to travel to Knysna, South Africa, is from November to March, with average air temperatures around 25°C (77°F) and water temperatures around 20°C (68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!