March in Słupsk averages a daily high of 6.2°C with nights around -1.7°C. Expect roughly 11.6 wet days totalling 30.8mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Słupsk is June–August.
Based on LEBA, PL (45.5km), 1995–2024. 29 years of March data.