Average weather for Hainan in December
It's pleasantly warm in December in Hainan with an average temperature of 19°C. Temperatures this month range from a low of 16°C to a high of 22°C. At night, you can expect temperatures between 10°C and 15°C.
Start of December
The month of December starts in Hainan with mild temps, averaging around 20°C during the day and nights around 15°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
Mid December
By mid-December, daytime temps drop to around 18°C, with nights around 13°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of December
By the end of December, the average daytime temperature in Hainan is around 19°C, while nighttime temps are about 12°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
In December, there is an average of 50 mm of precipitation, spread over 9 days. Of the total precipitation, about 0,2 cm falls as snow in December. The wind speed is around 5 Bft, mostly coming from the East.
Hainan in December |
New York | ||
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19°C | 9°C | |
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22°C | 12°C | |
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16°C | -5°C | |
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50 mm | 133 mm | |
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9 days | 17 days | |
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0,2 cm | 9,7 cm | |
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1 day | 3 days |
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is December a good time to visit Hainan?
Looking for great weather? December is a good time to be in Hainan. The temperatures are nice, and there’s not too much rain.
The typhoon season in Hainan runs from June to November.
Temperature records
With 29°C in 2015, Hainan reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 4°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of -3°C to a highest value of 22°C.
Check out the climate of Hainan for all months and discover the best travel time
Daily Temperature in December in Hainan
This chart shows the average daily high and low temperatures in December for Hainan, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in December in Hainan
The chart below shows the average daily precipitation in December for Hainan, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for December, you can expect about 9 days of precipitation in Hainan.
Daily Snowfall in December in Hainan
This chart shows the average daily snowfall in December in Hainan, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in December.
Daily UV index in December in Hainan
This chart shows the average daily UV index in December in Hainan, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in Hainan over the years
This chart shows the average temperature in December in Hainan, measured in degrees Celsius, over the past few years.
Total precipitation in December in Hainan over the years
This chart shows the average precipitation in December in Hainan, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in December in Hainan per year
This chart shows the average snowfall in December in Hainan, measured in centimeters, over the past few years.
Daily weather in December for Hainan
Click on any day in December to get detailed info about the usual weather on that day in Hainan. Check out the historical temperatures and precipitation over the past 10 years on this day.































Weather experiences in December in Hainan
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Share your weather experience in December in Hainan.
Average weather in Hainan by month
Click on a month below to see detailed weather info for Hainan. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.