March in Nanjing averages a daily high of 15.3°C with nights around 5.8°C. Expect roughly 9.8 wet days totalling 75.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Nanjing is April–May.
Based on NANJING, CH (18.4km), 1995–2024. 20 years of March data.