Brok, Poland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Brok, Mazowieckie, Poland, is known for the Brok River and the historic Church of St. Andrew the Apostle. The best time to travel to Brok, 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 rivers 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!