Glossa, Greece offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Glossa, Thessaly, Greece, is known for its proximity to the picturesque island of Skopelos, which gained fame as a filming location for the movie "Mamma Mia!" The best time to travel to Glossa, Greece, is from May to September, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 73°F (23°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!