April in Sanya averages a daily high of 29.4°C with nights around 22.6°C. Expect roughly 5.5 wet days totalling 54mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Sanya is November–March.
Based on SANYA, CH (8.8km), 1995–2024. 25 years of April data.