Sulejow, Poland offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Sulejow is known for the Sulejow Abbey, a well-preserved Cistercian monastery. The best time to travel to Sulejow, Poland, is during the summer months of June to August, when the average air temperature is around 20-25°C (68-77°F) and the water temperature in nearby lakes is approximately 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!