October in Chongming averages a daily high of 23.4°C with nights around 16.8°C. Expect roughly 7.3 wet days totalling 68mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Chongming is September–November.
Based on SHANGHAI, CH (32.6km), 1995–2024. 24 years of October data.