March in Sanya averages a daily high of 27.3°C with nights around 21°C. Expect roughly 3.5 wet days totalling 19.1mm. 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. 24 years of March data.