August in Muan averages a daily high of 29.9°C with nights around 23.5°C. Expect roughly 11.5 wet days totalling 163.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Muan is September–October.
Based on MOKPO, KS (21.1km), 1995–2024. 22 years of August data.