Hainan Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Hainan, China in December.

🔎
Sanya Haikou Qionghai Wenchang

Thinking about venturing to Hainan, China this December and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Hainan in December

Hainan, China is a region in China. December in Hainan generally has warm temperatures, with moderate precipitation.

Temperatures

The average maximum temperatures are warm and range from 23°C (73°F) in Haikou to 25°C (77°F) in Sanya. Nighttime temperatures generally drop to 19°C (66°F) in Sanya and 19°C (66°F) in Haikou.

For specific regional insights in Hainan, China, refer to the map provided below.

Precipitation

In December, precipitation varies across different areas. From moderate rainfall in Sanya with an average of 30 mm (1.2 in) to moderate rainfall in Wanning with 99 mm (3.9 in).

Explore Hainan by month

Pick a month to see the average temperature, rainfall and sunshine in Hainan - and find the best time to visit. (based on Sanya)

January24°C (75°F) February25°C (77°F) March27°C (81°F) April29°C (84°F) May31°C (88°F) June31°C (88°F) July31°C (88°F) This monthAugust31°C (88°F) September30°C (86°F) October29°C (84°F) November28°C (82°F) December25°C (77°F)
Best Time to Visit Hainan →

Best Places to Visit in Hainan in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Hainan.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Hainan

What is the weather like in December for some of the most popular destinations in Hainan, China?

Temperature range in Hainan (December)

Precipitation variation in Hainan (December)

Sanya

In December Sanya generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 19°C (66°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« November
December
January »
November
December
January
Max temperature
28°C (82°F)
25°C (77°F)
24°C (75°F)
Min temperature
22°C (72°F)
19°C (66°F)
19°C (66°F)
Monthly rainfall
60 mm (2.4 in)
30 mm (1.2 in)
17 mm (0.7 in)
Monthly rainy days
9 days
7 days
8 days
Weather conditions
excellent
excellent
excellent
Climate in Sanya →

Haikou

In December Haikou generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 19°C (66°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« November
December
January »
November
December
January
Max temperature
26°C (79°F)
23°C (73°F)
21°C (70°F)
Min temperature
22°C (72°F)
19°C (66°F)
17°C (63°F)
Monthly sun hours
143 hours
132 hours
110 hours
Monthly rainfall
52 mm (2 in)
43 mm (1.7 in)
40 mm (1.6 in)
Monthly rainy days
12 days
11 days
12 days
Weather conditions
excellent
excellent
excellent
Climate in Haikou →

Qionghai

In December Qionghai generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 18°C (64°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« November
December
January »
November
December
January
Max temperature
27°C (81°F)
24°C (75°F)
23°C (73°F)
Min temperature
21°C (70°F)
18°C (64°F)
17°C (63°F)
Monthly rainfall
75 mm (3 in)
46 mm (1.8 in)
36 mm (1.4 in)
Monthly rainy days
14 days
13 days
13 days
Weather conditions
excellent
excellent
excellent
Climate in Qionghai →

Wenchang

In December Wenchang generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 19°C (66°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« November
December
January »
November
December
January
Max temperature
27°C (81°F)
24°C (75°F)
23°C (73°F)
Min temperature
22°C (72°F)
19°C (66°F)
17°C (63°F)
Monthly sun hours
143 hours
132 hours
110 hours
Monthly rainfall
64 mm (2.5 in)
41 mm (1.6 in)
34 mm (1.3 in)
Monthly rainy days
13 days
12 days
13 days
Weather conditions
excellent
excellent
excellent
Climate in Wenchang →

Wanning

In December Wanning generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 20°C (68°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« November
December
January »
November
December
January
Max temperature
27°C (81°F)
24°C (75°F)
23°C (73°F)
Min temperature
23°C (73°F)
20°C (68°F)
19°C (66°F)
Monthly rainfall
138 mm (5.4 in)
99 mm (3.9 in)
68 mm (2.7 in)
Monthly rainy days
12 days
11 days
11 days
Weather conditions
very good
excellent
excellent
Climate in Wanning →

Is your destination not in the list? Have a look at all destinations in Hainan, in China.

In our records: China December extremes

Notable December records observed across cities in China in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • Based on our data, the coldest December night in China dropped to -50°C (-58°F) in Ergun on December 31, 2009.

Popular cities in December

Day & night temperatures, rainfall and average weather in Hainan in December.

City Weather Day temp Night temp Rainfall
Sanya 25°C (77°F) 19°C (66°F) 30 mm (1.2 in)
Haikou 23°C (73°F) 19°C (66°F) 43 mm (1.7 in)
Qionghai 24°C (75°F) 18°C (64°F) 46 mm (1.8 in)
Wenchang 24°C (75°F) 19°C (66°F) 41 mm (1.6 in)
Wanning 24°C (75°F) 20°C (68°F) 99 mm (3.9 in)
Danzhou 24°C (75°F) 16°C (61°F) 34 mm (1.3 in)

Hainan weather in December: frequently asked questions

What is the weather like in Hainan, China in December?

In December, Hainan, China generally has excellent weather conditions. Sanya sees daytime temperatures near 25°C (77°F), with nights cooling to roughly 19°C (66°F).

What is the average temperature in Hainan, China in December?

Average temperatures in Hainan, China during December range from a nighttime low near 19°C (66°F) to a daytime high around 25°C (77°F) in Sanya.

Does Hainan, China get a lot of rain in December?

Rain is generally moderate to light in Hainan, China during December, with Sanya averaging close to 30 mm (1.2 in).

Is December a Good Time to Visit Hainan, China?

We consider December to be one of the best times to travel to Hainan, China. Typically, the climate in Sanya is excellent.

Generally speaking, January, February, March, April, November and December provide excellent weather in Sanya. In contrast, June, July, August and September tend to have less favorable weather conditions.

Interested in more climate information?

We have much more information about the climate in Hainan.

Weather and climate has detailed information for every country in the world. Are you going to China? Get detailed historical weather averages for many cities in China.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

The Li River: A Journey Through China’s Most Breathtaking Landscape

Explore the Li River, China's breathtaking landscape with majestic mountains, serene waters, and picturesque views. A must-see for every traveler.
Go to China's Zhangjiajie National Park with the highest, the fastest, largest-loaded outdoor elevator in the world

You won't find this unique landscape anywhere else in the world. Thousands of floating mountains overgrown with trees at the top dominate this fairy tale landscape.
Go to Xinjiang in China

In Xinjiang you get to see a mix of East and Central Asia. An experience that you might want to add to your bucket list. You can travel through the province as if you are following an ancient silk route.

Mount Kailash

The best time for a Kailash tour/trekking is from mid-May to mid-October when the temperature is most pleasant. It is warm, dry and sunny in that period.
Must visit in China →