Climate almanac
Sanya
Hainan, China · 18.25°, 109.51°
What is the climate like in Sanya?
The best time to visit Sanya is typically November – April, with trip comfort peaking in February (8.1/10). Sanya is warmest in June, when daily highs average 86°F (30°C), and coolest in January, when lows fall to about 66°F (19°C). The wettest month is typically July and the driest is December; the year sees roughly 66 in (1681 mm) of precipitation.
- Best time to visitNovember – April — comfort peaks in February (8.1/10)
- Warmest monthJune — average high 86°F (30°C)
- Coolest monthJanuary — average low 66°F (19°C)
- Wettest monthJuly (12 in (302 mm))
- Driest monthDecember (0.5 in (14 mm))
- Annual precipitation66 in (1681 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromSanya, 9 km away (1956-2026)