Harrismith, Barbados offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Harrismith, Harrismith is known for its proximity to the Drakensberg Mountains and the Golden Gate Highlands National Park. The best time to travel to Harrismith, Barbados, is between December and April, with average air temperatures around 27°C (81°F) and water temperatures near 26°C (79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!