What’s the climate like in Hainan?
The current climate in Hainan features temperatures ranging from a high of 34°C to a low of 19°C throughout the year. The average yearly temperature is around 28°C. At night, temperatures in the colder months average around 12°C and in the warmer months around 25°C.
The highest temperature recorded in Hainan in recent years was 40°C in May 2020. The lowest daytime temperature recorded was 4°C in December 2023.
On average, Hainan receives 1654 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.
Best time to visit Hainan?
The best time to visit Hainan for sunny weather is January through April, November and December. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit Hainan. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Climate Table of Hainan
The climate table of Hainan shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 22 | 24 | 24 | 25 | 31 | 34 | 31 | 33 | 32 | 27 | 27 | 19 |
| Temp. min (°C) | 16 | 17 | 16 | 17 | 21 | 26 | 23 | 26 | 25 | 20 | 21 | 13 |
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| Precipitation (mm) | 50 | 38 | 70 | 114 | 142 | 167 | 231 | 348 | 188 | 198 | 58 | 50 |
| UV Index | 5 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 6 | 6 | 5 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
- Average yearly temperature: 28°C
- Highest temperature: 34°C in June
- Lowest temperature: 19°C in December
- Precipitation: 1654 mm per year, averaging 138 mm per month
- Driest months: 38 mm in February, 50 mm in January and December
- Wettest months: 348 mm in August, 231 mm in July and 198 mm in October
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Table of Contents
Average Temperature per Month in Hainan
This graph shows the average maximum temperatures per month in Hainan, China. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Hainan
This graph shows how much rainfall Hainan, China, gets on average per month. Rainfall is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of rainfall is measured in millimeters, and the average is calculated based on the recorded rainfall per month from past years.
Average UV Index per Month in Hainan
This graph shows the average UV index per month in Hainan, China. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Hainan
This graph shows the average yearly temperature in Hainan, China. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Hainan
This chart shows the total yearly precipitation in Hainan, China, over the past few years. The total yearly precipitation, measured in millimeters, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Hainan
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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.
