January in Changtu averages a daily high of -7.3°C with nights around -18.6°C. Expect roughly 3.1 wet days totalling 5.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Changtu is May.
Based on SIPING, CH (48.9km), 1995–2024. 30 years of January data.