Weather in Sanya

Find out what weather awaits you in Sanya! This section presents current weather reports and forecasts to help you plan your holiday or business trip.

Sanya, located in China, boasts a tropical monsoon climate, ensuring warm weather all year round. Temperature fluctuations throughout the year are insignificant, making this resort attractive to visit at any time. The average annual temperature stays at a comfortable level, rarely dropping below 20°C even in the coolest months.

In Sanya's climate, two main seasons are clearly distinguished: dry and wet. The dry season usually lasts from December to March, characterized by minimal rainfall (0-1 mm per month) and a large number of sunny days. During this time, the average temperature ranges from 20°C to 24°C. The wet season, or rainy season, falls in the period from May to September-October. These months see the main amount of precipitation (up to 9 mm), and the number of rainy days can reach 27 per month, while the air temperature remains high, averaging 27-28°C. April and November are transitional months with moderate rainfall.

Thus, when planning a trip to Sanya, it is worth considering these seasonal features. For lovers of sunny and dry weather, the winter and early spring months are ideal, while the summer months offer a very warm sea and lush tropical greenery, but with a higher likelihood of rain. Regardless of the season, Sanya remains a warm and welcoming place for a holiday.

Warm weather prevails in Sanya all year round, but temperature regimes have their own seasonal features that are important to consider when planning a trip. The annual temperature progression is quite smooth, without sharp extreme spikes. The hottest month is usually June, when the average temperature reaches 28.2°C, and daily highs often rise above 30.6°C. May, July, and August are also very warm with average temperatures around 27.7-27.9°C. The coolest months are January (average temperature 20.3°C) and December (20.7°C), when night temperatures can drop to 16.9-17.5°C, which still remains quite comfortable.

The summer period in Sanya, which roughly lasts from May to September, is characterized by consistently hot and often humid weather. Daily average temperatures at this time fluctuate mainly from 27°C to 28.2°C. During the day, the air warms up to 29.8-30.7°C, and at night the temperature rarely drops below 24.6-25.9°C, ensuring warm tropical nights. The winter months, from December to February, bring pleasant mildness and are considered the high tourist season. Average temperatures at this time hold in the range of 20.3-21.5°C. During the day, the thermometer usually shows a comfortable 23.7-25.0°C, while by night the temperature decreases to 16.9-18.1°C, which may require a light jumper or jacket for evening walks.

Daily temperature fluctuations in Sanya are more noticeable in the winter months, when the difference between daily highs and nightly lows can be about 6-7°C. In summer, this difference is somewhat smaller, usually within 4-5°C. Transitional months, such as March-April and October-November, demonstrate a gradual change in temperature regimes. In spring, the temperature steadily rises, reaching average values of 26.0°C in April (with highs up to 28.9°C), and in autumn, a gradual decrease occurs: in October, the average temperature is 25.6°C (maximum 28.3°C), and in November – 23.9°C (maximum 26.8°C), creating comfortable conditions for a varied holiday.

Sanya observes distinct seasonality in the distribution of precipitation. The year is clearly divided into a dry season, when rains are extremely rare and their volume is minimal, and the so-called "wet" season, which, according to the provided data, is characterized by frequent but very light precipitation. Given Sanya's warm climate, all precipitation falls as rain; snow does not occur here.

The dry season in Sanya usually lasts from December to March. During these months, the total amount of precipitation is negligible. Thus, in January and December, the average rainfall figure equals 0 mm, despite the presence of 3-4 "wet days" in each – these can be days with high humidity or insignificant, practically unmeasurable drizzle. In February and March, only 1 mm of precipitation falls per month, while the number of rainy days is 4 and 8 respectively, which also indicates very rare and extremely weak precipitation. November also belongs to the dry months with 2 mm of rainfall and 8 rainy days.

The period from May to September can be called the wet season, although, according to the provided data, precipitation volumes remain low. The "wettest" months by total rainfall are July and August, when on average 9 mm falls. However, it rains very often in these months – up to 27 days in August and 26 days in July. Such a combination (small total volume and a large number of rainy days) suggests that precipitation in Sanya during this period takes the form of frequent but very light drizzle or short-lived weak rains, rather than intense downpours. June (7 mm, 25 rainy days) and September (8 mm, 25 rainy days) also demonstrate a similar picture. May (6 mm, 20 rainy days) and October (7 mm, 19 rainy days) mark the beginning and end of this period of frequent but light rains.

When planning a trip to Sanya, it is important to choose your wardrobe correctly to feel comfortable in any weather. Given the warm tropical climate, the basis of your luggage year-round should consist of light, breathable items made from natural fabrics, such as cotton or linen. Be sure to bring swimwear, high SPF sunscreen, headwear (a hat or cap), and sunglasses for protection against the bright sun. Comfortable walking shoes, whether sandals or light trainers, will also become your indispensable companion.

Depending on the season, your wardrobe may require some additions. In the cooler months, from December to February, when evening temperatures can drop to 17-18°C, a light jacket, cardigan, or jumper will come in handy. During the day, you will be comfortable in a t-shirt and shorts. In the period from May to September, when the season of frequent but usually very light and short-lived rains arrives in Sanya, it is worth bringing a compact umbrella or a light raincoat-poncho. Clothing made from quick-drying materials will be especially practical. The principle of layering in clothing will also be useful, allowing you to easily adapt to temperature changes between air-conditioned rooms and the hot street, as well as to slight evening cooling in the winter period.