March in Jiangyan averages a daily high of 14.3°C with nights around 4.7°C. Expect roughly 8.5 wet days totalling 66.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Jiangyan is April–May.
Based on DONGTAI, CH (40.4km), 1995–2024. 24 years of March data.