Weather in Hainan by month. Seasons. When best to relax?

Hainan weather and climate by month.

Hainan is sometimes called the “Eastern Hawaii” because the island is located at the same latitude and has similar natural conditions. It lies in the South China Sea, washed by its warm waters, and has remarkably clear weather – it is sunny more than three hundred days a year! The island has an excellent climate, so you can swim whenever you want, and the authorities have instituted a strict regime of environmental cleanliness.

The center and south of Hainan are free and open spaces covered with forests and plantations, excellent beaches, and health springs. This is combined with a well-developed infrastructure in the north, which has a strong recreation industry and is home to many lodges ready to receive guests at the highest level. Hainan also has a network of trails that are easy to cross, many trails for trekking in the hills and mountains, it can offer a powerful historical and ethnographic program – the vacation will be rich.

Climatic Zones of Hainan

The island is located in two climatic zones: its north lies in the subtropics, and the central and southern parts belong to the tropical belt. As a result, at the same time as in the north have to dress warmer, in the south freely go in summer clothes – you can do it all year round.

Hainan is characterized by long days and the total absence of winter – the temperature differences during the year are small, even in January – the coldest month, on average 20-22 ℃. The island is very sunny, there are rarely any clouds, but the seasons, traditionally for the tropics, are distinguished by the amount of rainfall. And despite the abundance of sunny days, it rains a lot – up to 2,600 mm per year, and almost all of it falls between June and October. At this time of year, the island is disturbed by powerful typhoons, which sometimes interrupt ferry service.

There are numerous thermal springs in Hainan, and most have an infrastructure with good service, so you can also come here for recuperation.

Tourist seasons in Hainan

When is the best time to visit Hainan?

Hainan attracts about 8 million visitors each year. It is often included in the extensive program of trips to China as one of the points along with more sightseeing-oriented Shanghai, Beijing and Hong Kong as a “beach component”. But you can come here alone, there is a lot to see, and at any time of the year – it’s always summer in Hainan! However, we can distinguish between high and low seasons.

The high season.

It always starts on October 1st. The reason is that on this day the foundation of the People’s Republic of China is celebrated and the Golden Week – the national holiday – begins. You should not go to China at that time, because literally hundreds of millions of Chinese people go to visit their relatives, go on vacation or go about their business. Well, after it’s over, the normal high season begins, and it lasts until March. But note that swimming in winter is not as pleasant as in spring or fall – although the water is warm, but it is warmer than the air, so when you get out of it can be a little cold!

If you are going to the island for sightseeing or trekking, then any month of high season is fine. The sights of Hainan are mostly natural, so most of the time will be spent outdoors, and it is important that it is not too hot, and at the same time clear – just these conditions are met in the winter and adjacent months.

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Lovers of rafting on mountain rivers should be interested in Wangquan – first you will have to walk the mountain trail through the jungle up to its head, which in itself can be a lot of fun, then you can raft down – the total length of rafting is more than 160 kilometers. You can take a guide to get to the rafting site, and all your gear will be waiting there, all ready for you.

Low season

The cheapest time to go to Hainan is from May to the end of September. But there are still far fewer tourists because it is very hot and rainy. The sun can bake mercilessly, and the sea heats up to 30°C, so that many may find it even too warm – and therefore in the summer only hardy people who like real tropical heat go to the island. As a result, the rates are reduced at times, so for these fans is a real paradise, but the rest of us, if we want to rest cheaply, it is better to try to come to Hainan in the off-season, and catch the time when typhoons have not yet arrived or have already subsided. The best price/quality ratio is to go to rest in the spring – in March and April.

Attractions in Hainan

The first thing for visitors to the island is usually to visit its largest city, Haikou, located on the north coast. Most often in the city, they do not stay long, because the main tourist center – the city of Sanya, is located at the opposite end of Hainan. However, in Haikou, you can also have an interesting cultural program – the city has a beautiful historical center and around it there are many historical monuments from the Ming Dynasty (XIV-XV centuries) – temples, tombs, and an ancient academy. Next to the city you can also visit the extinct volcano Ma-An and by magma steps up to the observation deck, located at the edge of the crater – it offers a stunning view.

Sanya has a well-developed resort infrastructure, offering many attractions, and it is also an easy drive to places of interest, such as Monkey Island, Begel Nhat Park and Nanshan Temple. Nearby is Yalunwang, a coastal area with the best beaches on the island and many luxury hotels and diving centers. The bay of the same name is famous for crystal clear and calm waters, besides, the sea is cooler here – and in this case it’s an advantage!

A separate attraction is the nature of the island – many of the local species of flora and fauna are protected by UNESCO, being extremely rare, living or growing exclusively in Hainan. Thanks to its unique climate, the island has preserved its ancient nature, making an excursion into the interior of the island, into its rainforests a must.

The Yanoda Jungle near Sanya is worth a visit. It’s 45 square kilometers of jungle transformed into a park – the wildlife is still as wild as ever, but everything has been done to make it easier to see. You can get to the park itself by bus, and there are paths and bridges that will take you around and show you the most interesting things. There is also a cable car. The park is very large and it will take you two days to see it, so you can also get a meal here.

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Weather by Months


Tourists who do not like the heat come to Hainan in winter. During this time it is warm but not higher than 25°C; in the evenings it may be cooler, about 15°C. This allows you to get a tan on the beach and avoid the heat, especially as the water is warm, so you can swim. Many tourists traveling to China also visit Hainan to brighten up their trip with a bit of the tropics as even in winter it is still warm.


These months are among the best to visit the island – it is not too hot and stuffy, but at the same time the evenings are warm enough. Rains are rare and nothing will spoil the excursion. Not surprisingly, March sees a large influx of guests and hotels are best booked several months in advance!


May completes the high season, with prices rising at the beginning of the month because the Chinese come to vacation for the May holidays, but then falling quickly. It starts to rain more often and it gets hotter, but the conditions are still not bad until the typhoons hit.

If you like folklore, then visit the Ethnographic Park Binlangu . It’s also worth going to one of the folk festivals, if you can, such as Lantern Day (falls on the fifteenth day of the first lunar month), Spring Dragon Festival (second day of the second month), Dragon Boat Festival (fifth day of the fifth month) and so on – there are so many, you’ll make it to some.


But in these months, while prices are at a minimum, we would not recommend going to Hainan – the rainy season is in full swing, as well as the heat, as a result of the local climate unprepared people will be hard to endure. Even if you manage to catch a day of good weather, to sunbathe properly still will not work because of the increased levels of radiation – you will need to quickly escape from the sun. And then there are typhoons! It’s not good for sightseeing tours and camping, because you won’t be able to compete with typhoons in this heat.


Like the first spring months, the end of fall is very conducive to visit Hainan. This is especially true in November, yet in October it can still be quite hot. The weather is clear and sunny – it is again a great time for exploring the island and exploring its nature.

Hainan – season by month

Let us tell you in what months it’s better to go to rest on the Chinese island of Hainan, so as not to get caught in a typhoon. Pay attention to the specifics of the season.

Hainan vacation seasons

Unlike other regions of China, the island of Hainan (detailed description) can boast of beautiful summer weather all year round. The tropical monsoon climate provides ideal conditions for a non-stop beach holiday: both winter and summer temperatures on the island do not fall below +23 degrees, and the sea remains invariably warm.

The joy of holidaymakers can only be spoiled by typhoons that arrive in August and September, and in June the intolerable heat, when the sun in the daytime scorching the air and not allow to go out. Summer is generally considered a low season in Hainan because of the frequent rains and high humidity. However, the tropical downpours come mainly after 6 pm and do not interfere with a day vacation at the beach. Therefore, those tourists who are calmly absorb the humid heat, take the opportunity to relax in the “East Hawaii” at a time when the beaches are relatively empty and the hotels offer excellent discounts.

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The high season in Hainan lasts from December to March. During this time its snow-white beaches attract tourists from cold countries, at least a little break from the snow. However, although the sea in winter and heated to +25 degrees, get out of it is not very comfortable, as the air temperature is only +17+20 degrees and blowing dank winds. In the evenings, it can be quite chilly – at the seaside you can get cold even in a blouse.

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High season in Hainan Island

When to visit Hainan


Locals consider December to be a cold month, although to the European eye the weather in Hainan is quite summery. The daytime thermometer reads +20 degrees and the sea is as warm as in November. However, the bathing is not so much – because of the north winds on the coast can be quite chilly, and the undercurrents sometimes noticeably cool the water. However, tourists are not in the least bit saddened by this: those who came to rest for the New Year vacations, just choose hotels with heated pools, and go to the coast on those days when there is no strong wind. The sun in December shines brightly, and under its rays you can quickly get a chocolate tan. It rains four to seven times a month.

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In January, you can’t do without warm clothes either. Although it can be quite warm during the day: +23 in the south resorts, +21 in the north, in the evening the temperature drops to +16 +14 degrees. Add to this the winds, which sometimes get to the bone. The sea remains steadily warm – up to +25 degrees, but to bathe in such conditions is unlikely to want, and the strong waves scare away all but the surfers.

Mist falls over most of the island in the evening, causing humidity to rise and causing things to take a long time to dry. There are only 3-5 rainy days per month, but sunny days are also within 2-3. The sky is mainly covered with the veil of clouds and clouds.

It’s not worth going to Hainan just for a beach vacation in January. But you should go for health improvement and getting acquainted with local culture and sights.

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“Initially we did not even consider China. We had a choice between Turkey and Tunisia to relax on the beach. Our manager tricked us into settling on China with gorgeous pictures of the hotels. As it turned out, our hotel was located on the outskirts of Sanya Bay. Away from the hustle and bustle of the city and civilization … “

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February weather is unpredictable and unstable. Compared to January, the daytime temperature is getting warmer by a couple of degrees but the thermometer column can both rise to +28 degrees and fall to +15. Precipitation is still rare, only in the morning there may be a light drizzle, and in the capital Haikou occasionally rains.

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For vacationing it is better to choose Sanya, where it is warmer and there are more sunny days. In Haikou the temperature is 2 degrees lower, but it feels even colder because of the icy northern winds. The skies are mostly overcast.


In the first month of spring, it is already possible to go to Hainan for a beach holiday. The temperature during the day reaches +23 +25, often +28 and even +30 at the southern coast. In this case there is no suffocating heat, and the humidity is still comfortable enough to bear.

The rains and fog are gradually disappearing. You can not take an umbrella, but the warm clothes will come in handy, as the evening temperature drops to +18+21, and it can be cool without a light jacket.

In March begins the real swimming season. The water in the South China Sea becomes pleasant as steaming milk, its temperature rises to +28 degrees. The beaches become increasingly crowded.


By April the influx of tourists increases as it gets very warm to +28+30 and the humidity gradually rises. The daytime temperatures are already sticky and the older people can feel uncomfortable. But the evenings bring a pleasant freshness: the temperature at night drops to +21 degrees, you can enjoy a long walk along the beach enjoying the sunsets.

The main activity of tourists in April is swimming in the warm sea. On excursions to go in the daytime is already hot, but the diving safaris and water sports enjoy great popularity. In addition, a lot of festivals and concerts are held this month.

Low season in Hainan Island

Low season in Hainan Island


The rainfall in April increases in May as Hainan officially enters the rainy season. While the rains are not yet a significant obstacle for recreation, as they fall at night or in the afternoon, and the land after them dries up very quickly. At the same time the humidity reaches the 90% mark, and the air outside is already starting to feel stifling.

The daytime temperatures in this month range from +25 to +33, sometimes reaching a mark of +35 degrees. Moreover, swimming in the sea does not help to cool down, because the water is heated to +28 degrees. The high humidity and heat in the south of the island, where the sea blows a refreshing breeze, is the easiest to endure.


Hainan has a true tropical climate in early summer with high daytime temperatures (+25+32) and frequent heavy rains that can last all night and even into the afternoon. The humid heat can be hard to bear, so only tourists with no cardiovascular problems travel to the island at this time.

Rainfall amounts to 14 days in the south of Hainan and up to 17 days in Haikou, with occasional thunderstorms and gusty winds causing big waves at sea.


There are very few people brave enough to go to East Hawaii in the middle of summer, even the Chinese prefer to visit other regions.

In addition to the heat under +33 and high humidity, the island is subject to frequent violent winds, thunderstorms and typhoons. The water in the sea is almost hot – about +30 degrees. Even evenings do not bring the desired coolness, as the thermometer column goes down only to +25 +26 degrees and stifling heat remains. The only salvation is air conditioning in the room.

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In August in Hainan, uprooted billboards, uprooted trees, downed power lines and flooding are not uncommon occurrences. Flights are often canceled and transportation between cities is frozen because of bad weather. So before a trip to the island at the end of summer, it is worth thinking a few times and weigh everything up.

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Of course, it does not happen every year, and sometimes tourists can have a great holiday in August, but in general, the weather is not favorable to the serene beach holiday. The daytime air temperature is kept at around +30+32, the water temperature has not changed since July, the humidity is 85-90%. It rains most often in the northern, central and south-eastern regions.


The first month of autumn is still not suitable for a quiet holiday on the white beaches of Hainan. According to the statistics the number of rainy days is 20, but the weather is unpredictable. Maybe it will pour only in the dark, without much inconvenience, or it will pour from morning to evening, and the sunbathing will have to forget. September can also be “nice” with squalls and typhoons.

Meanwhile the weather is hot: daytime air is heated to +30, at night the mercury sinks to +21 +23. Sea boasts warm as fresh milk water (+29 degrees). However, strong winds do not let you enjoy swimming: more or less calm sea is only in the bay Yalunwan. But September gives excellent conditions for surfing. Those who are indifferent to water sports devote time to recreational procedures.


In October, you can already go to Hainan without fear of incessant showers. The rains become short-lived and not so heavy. Still, the skies are overcast and sunny days are rare.

The temperatures fluctuate from +29 during the day to +22 at night, and the evening can be cool because of the frequent winds. Swimming is still hampered by waves on the sea, and excursions can be disrupted by unexpected rains. Nevertheless, the number of vacationers in Hainan in October is very high – it is explained by the Chinese holidays, in honor of which the first week of October is a holiday.

See what impressions people have of their visit to the island.

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November is officially considered the last month of the wet season in Hainan. It still rains, but much less often than in previous months. Statistically there are about 7 rainy days in this month, and the downpours mostly take place in the dark time of the day.

The daytime air temperature is comparable to the water temperature and it is +25 degrees. In the evening the thermometer column goes down to +19. The humidity decreases significantly, the air becomes dry enough and it is easy to breathe. Therefore, November can be called a real “velvet season”, ideal for recreation of the elderly and young children.

Author Olga Dryagina

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