Chelmza, Poland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Chelmza is known for its historic St. Nicholas Church and the scenic Lake Chelmzynskie. The best time to travel to Chelmza, 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!