January in Gdańsk averages a daily high of 0°C with nights around -4.6°C. Expect roughly 17.4 wet days totalling 54.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Gdańsk is May–September.
Based on ELBLAG MILEJEWO, PL (54.9km), 1995–2024. 11 years of January data.