It's the most foggy city in Poland. For 90 days a year.

Fog forms when microscopic water droplets suspend near the ground, typically in cool mornings or warm, humid evenings. It condenses when moist air meets cold surfaces, creating a milky veil. Calm, still nights, especially after rain or in wetlands and river valleys, enhance fog formation. In Poland, fog occurs on average for 54 days a year, with Chojnice experiencing the most at 90 days. Conversely, places like Hel and Gdańsk see significantly fewer foggy days. Fog poses challenges for drivers, reducing visibility to mere meters. It's crucial to drive slowly, adjust speed according to visibility, and use fog lights appropriately. Maintaining a safe distance from other vehicles is essential, especially since fog often accompanies slippery roads.