Sanya weather by month
Warmest month
June
32°C average high
Coolest month
January
19°C average low
Wettest month
September
122 mm of rain
Driest month
February
7 mm of rain
Average temperature and rainfall in Sanya by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 26°C | 19°C | 11°C / 31°C | 7 mm | 76% | 13 km/h |
| February | 26°C | 19°C | 14°C / 30°C | 7 mm | 77% | 13 km/h |
| March | 28°C | 22°C | 16°C / 31°C | 15 mm | 78% | 13 km/h |
| April | 30°C | 25°C | 21°C / 32°C | 14 mm | 77% | 12 km/h |
| May | 32°C | 27°C | 24°C / 34°C | 37 mm | 79% | 11 km/h |
| June | 32°C | 27°C | 24°C / 34°C | 108 mm | 82% | 11 km/h |
| July | 31°C | 26°C | 24°C / 36°C | 74 mm | 83% | 11 km/h |
| August | 31°C | 26°C | 24°C / 34°C | 89 mm | 83% | 12 km/h |
| September | 31°C | 26°C | 23°C / 35°C | 122 mm | 83% | 10 km/h |
| October | 30°C | 24°C | 21°C / 34°C | 104 mm | 81% | 14 km/h |
| November | 29°C | 23°C | 18°C / 32°C | 22 mm | 79% | 14 km/h |
| December | 27°C | 20°C | 15°C / 33°C | 22 mm | 74% | 14 km/h |
Frost and snow-likely months in Sanya
No month in Sanya averages a night of 2°C or below. The coldest month is January with an average low of 19°C and a record low of 11°C, so frost is rare and snow is very unlikely.
These records carry temperature and precipitation, not snowfall totals.
Best time to visit Sanya
The most comfortable time to visit Sanya is generally December to February, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around September, totalling about 623 mm a year.
Travellers who prefer heat should aim for June, when highs average 32°C. September is the month to avoid if rain would spoil your plans — it averages 122 mm, roughly 18× the rainfall of the driest month (February).
Sanya climate: your questions
Does it snow in Sanya?
No: the coldest month in Sanya is January with an average low of 19°C and a record low of 11°C, so snow is very unlikely. What is falling now: Sanya weather today.
Which months are best for visiting Sanya?
December to February are the most comfortable months in Sanya, with highs near 26°C. June is the warmest month, averaging 32°C by day; September is the wettest, with 122 mm; and January is the coolest, with lows near 19°C. What it is doing today: Sanya weather today.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Sanya forecast for what is happening now.
Weather across China right now
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