Harrold, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Harrold, South Dakota, United States, is not widely known for specific tourist attractions or proper nouns. The best time to travel to Harrold, United States, is in late spring when the average air temperature is around 65°F (18°C) and water temperatures are generally not applicable due to its inland location. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!