Helena West Helena, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Helena West Helena is known for the King Biscuit Blues Festival. The best time to travel to Helena West Helena, United States, is in late spring (May), when the average air temperature is around 70°F (21°C) and the Mississippi River water temperature is approximately 65°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!