March in Chongming averages a daily high of 15°C with nights around 7.1°C. Expect roughly 11 wet days totalling 85.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Chongming is September–November.
Based on SHANGHAI, CH (32.6km), 1995–2024. 24 years of March data.