December in Guilin averages a daily high of 14.8°C with nights around 7.7°C. Expect roughly 8.8 wet days totalling 47.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Guilin is October–November.
Based on GUILIN, CH (5.9km), 1995–2024. 18 years of December data.