August in Sishui averages a daily high of 31.1°C with nights around 22°C. Expect roughly 10.2 wet days totalling 176mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Sishui is April–May.
Based on YANZHOU, CH (39.6km), 1995–2024. 30 years of August data.