Monthly weather forecast and Climate
Sanya, China CN

Warmest month (with highest average high temperature) is May (89.6°F).
Month with lowest average high temperature is January (79°F).

Month with highest average low temperature is June (79°F).
Coldest month (with lowest average low temperature) is January (65.3°F).

Wettest month (with highest rainfall) is September (9.9").
Driest month (with lowest rainfall) is January (0.3").

Month with highest number of rainy days is September (17 days).
Month with lowest number of rainy days is January (3.4 days).

Best months for swimming (with highest average sea temperature) are June, July, August and September (84°F).
Coldest months (with lowest average sea temperature) are January and February (73°F).

Months with longest days are April, May, June, July and August (Average daylight: 13).
Months with shortest days are January, November and December (Average daylight: 11).

Months with most sunshine are May and July (Average sunshine: 7).
Months with least sunshine are January, February and March (Average sunshine: 5).

Months with highest UV index are March, April, May, June, July, August and September (UV index 12).
Month with lowest UV index is December (UV index 8).