May in Guilin averages a daily high of 28°C with nights around 20.4°C. Expect roughly 17.9 wet days totalling 338.7mm. 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. 19 years of May data.