March in Sinan averages a daily high of 11.7°C with nights around 3.3°C. Expect roughly 7.6 wet days totalling 91.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Sinan is September–October.
Based on MOKPO, KS (25.1km), 1995–2024. 22 years of March data.