August in Xiamen averages a daily high of 32.1°C with nights around 25.3°C. Expect roughly 11.1 wet days totalling 200.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Xiamen is October–December.
Based on XIAMEN, CH (0.4km), 1995–2024. 18 years of August data.