Martinambo, Panama offers 1 beach perfect for sunbathing, surfing, swimming, and more. Martinambo, Panama Oeste, Panama, is known for its proximity to the Panama Canal and the scenic beauty of the surrounding rainforest. The best time to travel to Martinambo, Panama, is during the dry season from December to April, with average air temperatures around 80°F (27°C) and water temperatures near 82°F (28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!