Kiel, Poland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Kiel, Pomeranian Voivodeship, Poland, is known for the Kiel Canal, one of the world's busiest artificial waterways. The best time to travel to Kiel, Poland, is from June to August, when the average air temperature is around 20°C (68°F) and the water temperature is approximately 18°C (64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!