Mechanicsville, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Mechanicsville, Maryland, United States, is known for the Amish community and the annual Southern Maryland Wine, Jazz, R&B and Funk Festival. The best time to travel to Mechanicsville, United States, is in late spring (May), when the average air temperature is around 70°F (21°C) and 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!