January in Rostock averages a daily high of 3.8°C with nights around 0°C. Expect roughly 14.8 wet days totalling 47.3mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Rostock is June–September.
Based on ROSTOCK WARNEMUNDE, GM (11km), 1995–2024. 30 years of January data.