July in Tczew averages a daily high of 22.8°C with nights around 15.3°C. Expect roughly 14.7 wet days totalling 101.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Tczew is May–September.
Based on ELBLAG MILEJEWO, PL (43.5km), 1995–2024. 25 years of July data.