South Portland, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. South Portland is known for the Maine Mall, Bug Light Park, and the Spring Point Ledge Lighthouse. The best time to travel to South Portland is from June to August, with average air temperatures around 70-80°F and water temperatures around 60-70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!