Wejherowo is located in Gdansk city, Poland at the 54.6057, 18.2356 coordinates. Distance from Wejherowo to other cities. are listed below, click on the city name to find distance between. Distance from Wejherowo to Gdynia 21 km, to Slupsk 79 km, to Tczew 67 km. The green marker indicates the location of Wejherowo.