Monthly weather forecast and Climate
Sanya, China CN

The warmest month (with the highest average high temperature) is May (32°C).
The month with the lowest average high temperature is January (26.1°C).

The month with the highest average low temperature is June (26.1°C).
The coldest month (with the lowest average low temperature) is January (18.5°C).

The wettest month (with the highest rainfall) is September (251.4mm).
The driest month (with the lowest rainfall) is January (8mm).

The month with the highest number of rainy days is September (17 days).
The month with the lowest number of rainy days is January (3.4 days).

The best month for swimming (with the highest average sea temperature) is July (29.8°C).
The coldest month (with the lowest average sea temperature) is February (23°C).

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

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

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