December in Jian’ou averages a daily high of 16.6°C with nights around 7.9°C. Expect roughly 7.4 wet days totalling 42.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Jian’ou is October–November.
Based on NANPING, CH (55.4km), 1995–2024. 30 years of December data.