Weather in Hainan in May

General weather information about Hainan

Average annual temperature is 3.9 °C

Absolute maximum temperature: 34.4 °C

Absolute minimum temperature: -32.2 °C

Number of sunny days: 206 days

Number of rainy days: 129 days

Number of snow days: 30 days

Look at detailed online map of Hainan

* Weather data for Hainan China is based on climate observations for 2026 year

Hainan air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)0.23.617.920.829.234.429.631.027.619.83.9-0.3
Average daytime temperature (°C)-14.7-7.75.511.720.826.526.224.220.612.1-5.5-13.7
Average temperature (°C)-19.6-13.6-0.65.914.620.822.020.415.56.6-9.1-17.6
Average night temperature (°C)-24.2-19.9-5.70.28.015.218.416.911.31.4-12.9-21.1
Absolute minimum temperature (°C)-32.2-26.6-19.3-5.61.19.115.512.24.1-5.7-22.7-26.6

Hainan monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.010.311.913.615.115.915.514.212.610.99.48.6
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)6.98.19.39.110.711.18.77.89.88.95.46.2
Precipitation (mm)4892945952341818420324
Sunny days272223161894414241728
Rainy days013131321272716710
Snow days4551000000123

Hainan - weather forecast by months

Hainan weather in januaryHainan weather in februaryHainan weather in marchHainan weather in aprilHainan weather in mayHainan weather in juneHainan weather in julyHainan weather in augustHainan weather in septemberHainan weather in octoberHainan weather in novemberHainan weather in december

Best time to visit Hainan:

The best time to visit Hainan during the most sunny months:

  • May — 10.7(h)
  • June — 11.1(h)

Months with the longest average daylight duration in Hainan:

  • June — 15.9(h)
  • July — 15.5(h)

The largest precipitation sum in Hainan is at

  • June — 95(mm)
  • July — 234(mm)
  • August — 181(mm)
  • September — 84(mm)

    • Weather forecast in the closest to Hainan admin centers

    Weather forecast in the closest towns to Hainan

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    Frequently asked questions

    When is the best time to visit Hainan?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Hainan.
    What is the weather like in Hainan?
    See average temperature, rainfall and daylight hours for Hainan by month in the table above.
    How many sunny days does Hainan have?
    The monthly weather statistics above show sunshine and rainfall patterns for Hainan throughout the year.