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Hainan (Hainan Dao)
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Weather in Hainan for December 2025

Your guide to Hainan weather in December - trends and predictions

    Temperatures

  • So far, December 2025 in Hainan is slightly warmer than the historical average by 0.6 °C.

  • The forecast for the next days in Hainan predicts temperatures to be around 23 °C, close to the historical average.

  • In general, the average temperature in Hainan at the beginning of December is 24.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.4 °C by the end of December.

    • Rain 🌧️

  • With an average of 3 rainy days, Hainan experiences minimal rainfall in December.

    • More

  • Is December a good time to visit Hainan? check out the best time to travel to Hainan page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
28
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
22°/15°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Hainan Weather December

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
23°
2
Patchy rain possible
27°
3
Patchy rain possible
24°
4
Patchy rain possible
26°
5
Patchy rain possible
23°
6
Cloudy
25°
7
Patchy rain possible
26°
8
Patchy rain possible
24°
9
Patchy rain possible
24°
10
Patchy rain possible
23°
11
Light rain shower
25°
12
Light drizzle
23°
13
Light drizzle
22°
14
Patchy rain possible
18°
15
Overcast
19°
16
Patchy rain possible
21°
17
Overcast
23°
18
Patchy rain possible
24°
19
Cloudy
24°
20
Partly cloudy
24°
21
Sunny
22°
22
Patchy rain possible
24°
23
Patchy rain possible
25°
24
Patchy rain possible
26°
25
Moderate rain
24°
26
Patchy rain possible
16°
27
Patchy rain possible
22°
28
Patchy rain possible
22°
29
Patchy rain possible
21°
30
Patchy rain possible
21°
31
Patchy rain possible
24°

What’s the Weather Like in Hainan This December?

Discover the average temperatures and weather trends across Hainan’s cities this December.
Patchy rain possibleHainan Dao22 °C / 15 °COvercastSanya25 °C / 18 °CMore Locations

Temperatures trend during December in Hainan

See the weather trend as well as the moving average line

December weather in Hainan day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Patchy rain possible
Patchy rain possible
 23° /17° 0.7 mm 6
2 Dec. Patchy rain possible
Patchy rain possible
 27° /20° 2.8 mm 6
3 Dec. Patchy rain possible
Patchy rain possible
 24° /18° 2.4 mm 6
4 Dec. Patchy rain possible
Patchy rain possible
 26° /18° 0.3 mm 6
5 Dec. Patchy rain possible
Patchy rain possible
 23° /18° 1 mm 6
6 Dec. Cloudy
Cloudy
 25° /18° 0 mm 6
7 Dec. Patchy rain possible
Patchy rain possible
 26° /17° 0.1 mm 7
8 Dec. Patchy rain possible
Patchy rain possible
 24° /15° 0.1 mm 6
9 Dec. Patchy rain possible
Patchy rain possible
 24° /15° 0.1 mm 5
10 Dec. Patchy rain possible
Patchy rain possible
 23° /18° 0.2 mm 6
11 Dec. Light rain shower
Light rain shower
 25° /19° 0.3 mm 6
12 Dec. Light drizzle
Light drizzle
 23° /18° 0.5 mm 6
13 Dec. Light drizzle
Light drizzle
 22° /16° 1.5 mm 5
14 Dec. Patchy rain possible
Patchy rain possible
 18° /13° 1.2 mm 5
15 Dec. Overcast
Overcast
 19° /14° 0.4 mm 5
16 Dec. Patchy rain possible
Patchy rain possible
 21° /15° 0.2 mm 5
17 Dec. Overcast
Overcast
 23° /15° 0 mm 5
18 Dec. Patchy rain possible
Patchy rain possible
 24° /15° 0.3 mm 6
19 Dec. Cloudy
Cloudy
 24° /15° 0.3 mm 6
20 Dec. Partly cloudy
Partly cloudy
 24° /16° 0.2 mm 5
21 Dec. Sunny
Sunny
 22° /12° 0 mm 6
22 Dec. Patchy rain possible
Patchy rain possible
 24° /18° 1.5 mm 1.2
23 Dec. Patchy rain possible
Patchy rain possible
 25° /17° 0.4 mm 1.4
24 Dec. Patchy rain possible
Patchy rain possible
 26° /18° 1 mm 1.4
25 Dec. Moderate rain
Moderate rain
 24° /16° 8.1 mm 1.1
26 Dec. Patchy rain possible
Patchy rain possible
 16° /15° 1.1 mm 0.2
27 Dec. Patchy rain possible
Patchy rain possible
 22° /16° 0.6 mm 4
28 Dec. Patchy rain possible
Patchy rain possible
 22° /18° 0.7 mm 4
29 Dec. Patchy rain possible
Patchy rain possible
 21° /17° 0.1 mm 4
30 Dec. Patchy rain possible
Patchy rain possible
 21° /16° 0.2 mm 4
31 Dec. Patchy rain possible
Patchy rain possible
 24° /17° 0.1 mm 4
Next
Important Notice
Our weather forecast for Hainan in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Hainan forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Hainan weather in December vs November vs January

Compare December weather in Hainan with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
NovemberDecemberJanuary
WeatherPatchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures25°/19°22°/15°23°/14°
Rainfall112 mm12 mm14 mm
Wind17.9 km/h19.4 km/h19.3 km/h
Humidity83%78%74%
Rainy days15 days3 days5 days
Dry days15 days28 days26 days

Planning a trip to Hainan? Discover the best time to visit

Hainan in December - FAQ

What are the expected maximum and minimum temperatures in Hainan during December?
During December, expect a variety of temperatures with highs around 22° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hainan during December?
Expect minimal rainfall in Hainan during December, with a total of 12 mm over approximately 3 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Hainan during December?
The average wind speed in Hainan during December is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Hainan in December?

As you prepare for your trip to Hainan in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Hainan, during December, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather

December rainfall patterns in Hainan

Explore the daily rainfall trends and prepare for Hainans December weather 💧
Typically, Hainan has 3 rainy days in December with a total of 12 mm of rainfall.

UV exposure in Hainan during December

Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
Provinces in Hainan
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Sanya Shi
Top locations in Hainan
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Hainan DaoSanya
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Location coordinates Where is Hainan?

Get accurate weather forecasts for Hainan, located at latitude 19.2 and longitude 109.7. Stay updated with localized weather information tailored for Hainan.

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