Hainan Weather

In the tropical monsoon climate, the temperature in Hainan does not change much throughout the year. The average temperature during the year ranges from 23 °C (73 °F) to 26 °C (79 °F). The dry season and the wet season are clearly different in Hainan, as the dry season (spring and winter) is warm and windy while the wet season (summer and autumn) is hot and humid. Hainan is an island to the south of mainland China separated by Qiongzhou Strait, and it is at 3 ° 30' to 20 ° 18' latitude. Hainan is much hotter than some tropical countries at the same latitude, such as America and Mexico, while it is cooler than some southeast countries like Thailand and Singapore.

Light, heat, and water resources are abundant in Hainan, and the country sees frequent damage from typhoons. Hainan enjoys long days of sunshine, as it sees about 2,200 annual hours of sunshine, and average annual rainfall is about 2,000 mm. Please remember to obtain more information about Hainan's weather a week before you plan to travel to the area.

Take a look at our Hainan tour packages and choose the best time for your travel. The famous scenic spot, Yalong Bay, may be the best place to visit at any time of the year, and you'll also see the spectacular scenery of the south sea of China while enjoying the sunshine. The best time to visit Hainan is from December to March (late spring and early summer). During these months, the weather in Hainan is mild and agreeable, while other parts of China are in a cold and harsh winter.

Dry Season

Hainan's dry season falls during winter and spring. At this time, the rain falls sometimes, maybe rarely. Spring in Hainan is from March to May. It is warm there and the average temperature during the day is 22 °C (72 °F). A T-shirt with long sleeves is suitable to wear during this season. If necessary, put on a sweater at night to stay warm.

Winter in Hainan is from January to February. It is warm and comfortable, not like other northern cities in China. The average temperature during the winter is 19 °C (66 °F). A long-sleeve shirt and a light coat or a sweater is also enough for this season. You can go swimming and enjoy the sunshine on the beach, as the sun is not strong enough to hurt your skin.

The dry season in Hainan marks the low travel season, so the city and the beach are less crowded. Booking hotel rooms and flights tickets is easier, and prices are much cheaper than in the summer and autumn.

Wet Season

Summer and autumn comprise the dry season in Hainan. The wet season sees more rain, and it is more frequent and heavier than in the spring and winter. Summer in Hainan starts with June and ends in November, which are the hottest months of the four seasons. It is sunny on most occasions during the day and it sometimes rains. The average summer temperature is 17 °C (63 °F) at night, and during the day the temperature often hits 39 °C (102 °F). The sunshine is really strong, so remember to take the sunscreen to protect yourself from getting sunburn. A dress or a mini skirt is recommended when outdoors.

Hainan's autumn is from mid-November to December. The temperature is cooler than in the summer and it is a little humid. The average temperature during this season is 23 °C (74 °F); long-sleeve shirts and a sweater are recommended. This season may be the best time to visit the beach, as it is breezy by the sea. Golden sands with coconut trees on the beach make for beautiful images in Hainan.

Weather Forecasts for Major Cities in Hainan

Questions and Answers About Hainan Weather

carry ker 2013-10-11
Show Answer
How is the weather on december?enough for wear long sleeveand long pants onlt.

Dear Carry,
The average temperature in Hainan on December is around 20℃, you are suggested to wear long sleeve and long pants, and add a thin jacket at night.

Nancy Deng replied on 2013-10-11
Steve 2013-09-22
Show Answer
Is there likely to be plenty of sunshine in Sanya during October? I realise you cannot be 100% accurate but from previous years experience what is your opinion? I want to escape the Autumn clouds here in England! Thankyou!!!

It is still summer time with sunshine in Sanya. But occasional thunderstorms is difficult to predict.

Carol Wang replied on 2013-09-23
StephenJ 2013-08-06
Show Answer
What is there to see in Hainan? Temples, minorities, cultural aspects? Not interested in beaches.
Dear StephenJ, Most of tourists who go to Hainan, would like to visit Sanya city which is famous for its beaches. We listed some famous attractions there for reference on our website. Please click this link: http://www.chinahighlights.com/sanya/attraction/ Lussie Lu replied on 2013-08-06
Simon Tham 2013-06-29
Show Answer
If I would plan a trip to hainan island with the travel agency. How is the weather on Mid Auguest 13? Is to very hot or weather around 25c? Thx
Dear Simon, Based on the former data, the average temperature will be 26-33℃(78.8-91.4℉), it is too hot and it usually rain during that period. Lussie Lu replied on 2013-06-30
Nyambayar 2013-06-10
Show Answer
If we visit Hainan during middle of July /10-15/ What would the weather be like? too humid? rainy? too hot? Any recommendation.

Hi Nyambayar, it would be too hot.

Whitney Liao replied on 2013-06-14
April Offer $25 Coupon
  1. Send your inquiry before Apr. 30, 2014, and we will email you a $25 coupon.
  2. The coupon is valid till Dec. 31, 2014, for paying tour packages worth $250 or up.
  3. The coupon cannot be used for paying flight tickets, train tickets, hotel rooms and day trips.
Travel Advice or Question? Ask us here
Do you want to book a tour/hotel/Wi-Fi. etc.
Your Name Your Email
Hi, I'm Candice Song
I updated this article on September 13, 2012
See all my travel articles
follow this pageChina Highlights