Sanya, Hainan Weather by Month and Climate Averages

How much rain does Sanya get?

Sanya gets 1653 mm of precipitation in an average year, spread over about 115 days with measurable rain. That is more rainy days than 63% of China.

July is the wettest month, with 290 mm. January is the driest, with 11 mm. September has the most rainy days, about 17.

The longest dry spell in the last five years lasted 39 days, to February 9, 2024.

Sanya weather by month

Sanya weather in January

In January, Sanya averages a high of 25°C and a low of 18°C. It gets 11 mm of precipitation over about 4 rainy days. The sun is out about 53% of daylight hours. The January record high is 31°C (1996) and the record low is 5°C (1974). January is one of the most comfortable months to visit.

Sanya weather in February

In February, Sanya averages a high of 26°C and a low of 19°C. It gets 15 mm of precipitation over about 4 rainy days. The sun is out about 54% of daylight hours. The February record high is 31°C (2006) and the record low is 3°C (1974). February is one of the most comfortable months to visit.

Sanya weather in March

In March, Sanya averages a high of 28°C and a low of 21°C. It gets 24 mm of precipitation over about 5 rainy days. The sun is out about 53% of daylight hours. The March record high is 38°C (1973) and the record low is 11°C (1986).

Sanya weather in April

In April, Sanya averages a high of 30°C and a low of 23°C. It gets 66 mm of precipitation over about 5 rainy days. The sun is out about 50% of daylight hours. The April record high is 40°C (1975) and the record low is 14°C (2022).

Sanya weather in May

In May, Sanya averages a high of 31°C and a low of 25°C. It gets 110 mm of precipitation over about 10 rainy days. The sun is out about 36% of daylight hours. The May record high is 38°C (1979) and the record low is 16°C (1973).

Sanya weather in June

In June, Sanya averages a high of 32°C and a low of 26°C. It gets 198 mm of precipitation over about 14 rainy days. The sun is out about 16% of daylight hours. The June record high is 37°C (1984) and the record low is 21°C (1976).

Sanya weather in July

In July, Sanya averages a high of 31°C and a low of 26°C. It gets 290 mm of precipitation over about 16 rainy days. The sun is out about 30% of daylight hours. The July record high is 37°C (1981) and the record low is 20°C (2011).

Sanya weather in August

In August, Sanya averages a high of 31°C and a low of 25°C. It gets 267 mm of precipitation over about 16 rainy days. The sun is out about 23% of daylight hours. The August record high is 35°C (2005) and the record low is 21°C (2011).

Sanya weather in September

In September, Sanya averages a high of 31°C and a low of 24°C. It gets 288 mm of precipitation over about 17 rainy days. The sun is out about 25% of daylight hours. The September record high is 36°C (2005) and the record low is 17°C (1977).

Sanya weather in October

In October, Sanya averages a high of 29°C and a low of 23°C. It gets 286 mm of precipitation over about 12 rainy days. The sun is out about 26% of daylight hours. The October record high is 41°C (1993) and the record low is 11°C (1974).

Sanya weather in November

In November, Sanya averages a high of 28°C and a low of 21°C. It gets 75 mm of precipitation over about 7 rainy days. The sun is out about 53% of daylight hours. The November record high is 40°C (1973) and the record low is 11°C (1986).

Sanya weather in December

In December, Sanya averages a high of 26°C and a low of 19°C. It gets 22 mm of precipitation over about 5 rainy days. The sun is out about 48% of daylight hours. The December record high is 33°C (2006) and the record low is 7°C (1975). December is one of the most comfortable months to visit.

Sunshine, humidity and wind in Sanya

February is the sunniest month in Sanya, with sunshine about 54% of daylight hours. June is the cloudiest, at 16%. Over the year the sun shines about 39% of daylight hours. Sanya is cloudier than 66% of China.

Humidity peaks in May at 84% and is lowest in December at 75%.

Sanya has about 64 days a year above 32°C. Sanya is hotter than 85% of China.

Sanya weather records

The hottest temperature on record at the Sanya station is 41°C, on October 13, 1993. The coldest is 3°C, on February 11, 1974.

The wettest day on record brought 454 mm of rain, on October 8, 1992.

21 all-time records have been set at the station since 1973.

The best time to visit Sanya

The most comfortable time to visit is typically January to February and December, when daytime highs sit near 25°C.

Winter (December–February) is warm, with average highs around 25°C and lows near 19°C.

Spring (March–May) is hot, with average highs around 30°C and lows near 23°C.

Summer (June–August) is hot, with average highs around 31°C and lows near 25°C. It can feel humid.

Autumn (September–November) is hot, with average highs around 29°C and lows near 23°C.

Sanya climate questions

How much rain does Sanya get?

Sanya gets 1653 mm of precipitation in an average year, over about 115 rainy days.

What is the wettest month in Sanya?

July is the wettest month in Sanya, with 290 mm. January is the driest, with 11 mm.

How many rainy days does Sanya have a year?

Sanya has about 115 days with measurable rain in an average year. September has the most, about 17.

What is the hottest month in Sanya?

June is the warmest month in Sanya, with an average high of 32°C.

What is the coldest month in Sanya?

January is the coldest month in Sanya, with an average low of 18°C.

What is the record high temperature in Sanya?

The record high at the Sanya station is 41°C, set on October 13, 1993. The record low is 3°C, on February 11, 1974.

What is the sunniest month in Sanya?

February is the sunniest month in Sanya, with sunshine about 54% of daylight hours. June is the cloudiest.

What is the best time to visit Sanya?

The most comfortable time to visit is typically January to February and December, when daytime highs sit near 25°C.