When is the best time to go to Hainan?

When is the best time to go to Hainan? Here's some information to help you in your decision:

  • The best months for good weather in Hainan are February, March, April, September and October
  • On average, the warmest months are April, May, June, July, August and September
  • The rainiest months are May and August
  • The best months for swimming are May, June, July, August, September and October

Annual weather in Hainan

For full information about the climate and weather in Hainan a specific month, click on the corresponding line below:

January 61°F/74°F
February 65°F/79°F
March 70°F/86°F
April 76°F/90°F
May 81°F/94°F
June 81°F/94°F
July 81°F/94°F
August 81°F/92°F
September 79°F/90°F
October 76°F/85°F
November 70°F/81°F
December 65°F/74°F

Weather and climate in Hainan

Hainan enjoys a tropical savanna climate (with dry winter) in accordance with the Köppen-Geiger classification. The yearly average maximum temperature in Hainan is 86°F (ranging from 74°F in january to 94°F in june). Annual rainfall is 80.5in, with a minimum of 1.3in in february and a maximum of 13.2in in august.
  • In january the climate is correct. In average, on the morning it is 63°F and, in january, 2 days of rain are expected.
  • From february to march the climate is beautiful. The record temperature this month is 103°F and, in march, 5 days of rain are expected.
  • From april to september the climate is okay. It is for example 90°F as maximum temperature in september and, in september, 12 days of rain are expected.
  • In october the climate is beautiful. The record temperature this month is 97°F and it rains about 29% of the time in october.
  • Between the months of november and december the climate is okay. The temperature rises to 74°F and, in december, 2 days of rain are expected.

Charts: temperature and rainfall in Hainan

In the charts below, you can see the following seasonal norms for the city of Hainan: the minimum and maximum outdoor temperature, the risk and amount of monthly rainfall, daily average sunshine, sea temperature, and relative humidity for each month of the year.

Outside temperature

Precipitation (rainfall)

Daily sunshine hours

Sea temperature


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