May in Sishui averages a daily high of 27.1°C with nights around 14.1°C. Expect roughly 5.4 wet days totalling 45.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Sishui is April–May.
Based on YANZHOU, CH (39.6km), 1995–2024. 30 years of May data.