![(shizhao) [flickr.com] CC BY-SA
License Information available under 'Proof of Image Sources' (shizhao) [flickr.com] CC BY-SA
License Information available under 'Proof of Image Sources'](/wp-content/uploads/reiseziele/6497.jpg)
Furthermore, we analyzed all climate data and provide a recommendation about which months are best to visit Hainan for your holiday.
Climate Overview
Show temperatures in degree
General & Geography
Table of Contents
Hainan is the southernmost province of the People’s Republic of China and consists of several islands. As a rule, Hainan is mainly the largest island of the same name in the archipelago in the South China Sea.
Hainan is somewhat smaller than Taiwan, whose status as an independent state is still not recognised by China. In this respect, the main island Hainan Dao is the second largest or even the largest island within the People’s Republic of China.
Almost 1200 miles of coastline are dotted with beautiful bays and palm-fringed sandy beaches, while the interior of the island is predominantly covered with lush rainforest.
Hainan is home to around 9 million inhabitants. The capital is Haikou in the north of the province with around two million inhabitants.
Due to the mild climate all year round and the perfect conditions for a relaxing seaside holiday, Hainan is often referred to as the “Hawaii of the East”. In fact, Hainan and Hawaii are even on a latitude.
Other comparisons call the island world of Hainan also the “Florida of China”, certain similarities cannot be denied by the summery flair, the beautiful beaches and the many tropical fruits.
The flight time from Shanghai is about three hours, from Beijing the direct flight to Sanya on Hainan takes about four hours. Hainan is therefore also a very popular end to a tour of China.
Climate on Hainan in China
The fantastic bays like Dadonghai, Yalong- or Haitang Bay on Hainan are especially popular because the Chinese island offers pleasant temperatures all year round. Even in winter it remains very mild with daytime temperatures of 20 °C and more, in midsummer it never gets unbearably hot with an average of 32 °C.
In general, most rain falls on Hainan between May and October. The tropical climate is strongly determined by the monsoon and manifests itself in wetter summer and autumn months as well as a dry winter and spring. The north of Hainan is noticeably cooler than the south of the islands.
The rainy season, with about 75% of the annual rainfall, is also the risk period for typhoons on Hainan. In general, these tropical cyclones hit – if at all – the east of the island. Coolest months are December to February, warmest months on Hainan are May to August.
Best Time to Visit Hainan: Overview
JanuaryJan Best time to traveltime fresh, but Perfect weather | FebruaryFeb Best time to traveltime fresh, but Perfect weather | MarchMar Best time to traveltime fresh, but Perfect weather | AprilApr Best time to traveltime fresh, but Perfect weather | MayMay Beginning of Rainy SeasonRainy Season up to 7.44 in of rain | JuneJun Rainy SeasonRainy Season up to 9.57 in of rain |
JulyJul Rainy SeasonRainy Season up to 7.44 in of rain | AugustAug Rainy SeasonRainy Season up to 9.17 in of rain | SeptemberSep Rainy SeasonRainy Season up to 13.27 in of rain | OctoberOct Good time to traveltime mostly Pleasant climate | NovemberNov Best time to traveltime fresh, but Perfect weather | DecemberDec Best time to traveltime fresh, but Perfect weather |
When is the best time to travel for Hainan?
In general Hainan can be visited all year round, even if the summer months can become very warm and also humid due to the increased precipitation. The month with the most rain is September, which slowly heralds the end of the rainy season on Hainan until mid-October.
We generally recommend the period from mid-October to the end of April as the best travel season for Hainan. In general, the months from December to February are not always perfect for swimming (water temperature around 20 °C, air up to 22 °C), but they are nevertheless a welcome change from China’s often very cold mainland.
On the occasion of the Chinese New Year, whose date according to the traditional Chinese calendar falls on a new moon between January 21 and February 21, the number of visitors to Hainan often explodes. During this popular travel season, the prices for overnight stays on the island also increase significantly.
Climate Chart Hainan
Haikou

Show temperatures in degree
Source of Data: German Weather Service (Offenbach) and Wikipedia
Climate Table Hainan
In the following, you will find the climate table for Hainan, containing information about Temperatures, Precipitation, Water Temperatures, and Hours of Sunshine.Temperatures, Precipitation, Sunshine in Haikou (Hainan)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day Temperature | 21° | 21° | 24° | 28° | 32° | 33° | 33° | 31° | 31° | 28° | 25° | 21° |
| Night Temperature | 15° | 16° | 18° | 22° | 25° | 24° | 25° | 26° | 25° | 22° | 20° | 18° |
| Water Temperature | 20° | 20° | 20° | 23° | 27° | 29° | 30° | 29° | 28° | 27° | 25° | 22° |
| Precipitation (inch) | 1.02 | 1.5 | 2.01 | 3.74 | 7.44 | 9.57 | 7.44 | 9.17 | 13.27 | 5.67 | 4.13 | 1.54 |
| Rainy days | 4 | 6 | 6 | 8 | 12 | 11 | 10 | 12 | 13 | 10 | 5 | 3 |
| Hours of Sunshine | 4 | 4 | 5 | 7 | 8 | 7 | 9 | 7 | 7 | 7 | 6 | 5 |
Show temperatures in degree
Temperatures
The annual average temperature in Haikou is 23.8 °C.For comparison: London 11 °C, NYC 12 °C, LA 17.9 °C
Warmest month: July (28.4 °C)
Coldest month: January (17.1 °C)
The maximum water temperature in Haikou is 30 °C. You can take a bath at these temperatures.
Months with water temperature of at least 17 °C (Limited bathing is possible):
all months
Months with water temperature of at least 21 °C (adequate for beach vacation):
all except January, February, and March
Precipitation
Overall annual precipitation: 66.5 inch on 100 rainy daysFor comparison: London 24.06 in, NYC 41.57 in, LA 12.01 in
Rainy season (months with more than 6.9 in of precipitation): May, June, July, August, and September
Overall precipitation in the rainy season: 46.89 in
You cannot expect snow in any month in Haikou.
Sunshine
As our climate table shows, July is the sunniest month with an average of 8.5 hours of sunshine per day. Over the year, there are 6.2 hours of sunshine per day on average. For comparison: London has 4.1, NYC has 7 and LA has 8.9 hours of sunshine per day on average.Popular Activities
Haikou: Discovery more Old Streets Evening Food Tour
Tours
from 90 $ »
Discover the flavors of Haikou on a guided evening food tour. Explore the historic Qilou Old Streets, taste local specialties, and enjoy a refreshing dessert of Qingbuliang.
Haikou: Night Cruise on the Nanhai Pearl Ship at Haikou Bay
Nightlife & bars
from 28 $ »
Sail through the illuminated Haikou Bay aboard the luxurious Nanhai Pearl Cruise, offering stunning views of the city skyline and coastal landmarks. Have an experience beyond boundaries with Panda144.
Haikou: China Leiqiong Global Geopark Entry Ticket
Tours
from 18 $ »
Explore the magnificent volcanic landscapes of China Leiqiong Global Geopark. Hike through ancient craters and witness stunning geological formations. An experience beyond boundaries with Panda144.
More attractions
Haikou: Private Day Trip to Volcanic Geopark & Movie Town | Haikou: Private City Tour with Lunch and Hotel Pickup | From Haikou: Private Day Tour to Volcano Park & Coffee Town | Haikou: 3H Dad Tea Themed Bus & Qilou Old Street Guided Walk | Haikou: 3H Leiqiong Volcanic Geo-Park Tour with Meal | Haikou: People’s Park Tai Chi & Kung Fu Class | Haikou: Full-Day Volcano, Old Street & Market Tour |Current Weather and Forecast
Current Weather in Haikou (Station Changliu)
Clouds: 93 % Wind: 9 mph OSO
Air Pressure: 1015 hPa Humidity: 89 %
Air Pressure: 1015 hPa Humidity: 89 %
Last updated: 3rd Nov 2026, 07:28 pm
The next days …
| 4th Nov 2026 | 5th Nov 2026 | 6th Nov 2026 | 7th Nov 2026 | 8th Nov 2026 | 9th Nov 2026 |
|---|---|---|---|---|---|
| 25 °C to 30 °C | 25 °C to 30 °C | 25 °C to 29 °C | 25 °C to 30 °C | 25 °C to 27 °C | 24 °C to 25 °C |
| Clouds: 32 % | Clouds: 80 % | Clouds: 41 % | Clouds: 33 % | Clouds: 97 % | Clouds: 94 % |
| 0.13 in of rain | 0.11 in of rain | 0.17 in of rain | 0.12 in of rain | 0.56 in of rain | 0.2 in of rain |
Weather information provided by OpenWeatherMap. (CC BY-SA)
Show temperatures in degree
China: Regions
Hainan is part of the holiday destination China. We analyzed the climate for additional regions, in order to provide you with information about the best time to visit and the expected holiday weather:Share your Experience and Win
We want to know: how was the weather during your Hainan holiday? You can win a travel coupon of 1000 $. The price will be raffled among all submissions.
![Hainan Sanya Bay-East island (llee_wu) [flickr.com] CC BY-ND
License Information available under 'Proof of Image Sources'](/wp-content/uploads/reiseziele/hainan-sanya-bay-east-island90414_preview.jpg)
![A Buddism godness Guanyin Bodhisattva of Hainan Sanya South China Sea (llee_wu) [flickr.com] CC BY-ND
License Information available under 'Proof of Image Sources'](/wp-content/uploads/reiseziele/a-buddism-godness-guanyin-bodhisattva-of-hainan-sanya-south-china-sea84210_preview.jpg)
![201111__ (DvYang) [flickr.com] CC BY-SA
License Information available under 'Proof of Image Sources'](/wp-content/uploads/reiseziele/2011111040_preview.jpg)






Hainan: Experiences of our Visitors
too warm + humid, unpleasant because also at night no sufficient restful cooling, water perfect but at noon glows beach
Weather Rating: 4 stars – Good