Luma, Samoa offers 1 beach perfect for sunbathing, surfing, swimming, and more. Luma, American Samoa, is known for the National Park of American Samoa. The best time to travel to Luma, Samoa, is between May and October, when the average air temperature is around 77-86°F (25-30°C) and the water temperature is approximately 80-82°F (27-28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!