Guangdong used to be famous for its heat. Why is it that now the temperature in Guangdong is only 30 degrees when other places have high temperatures?

Because the typhoon passed through the country a few days ago, Guangdong, which should have continued to heat up together with everyone, has withdrawn from the ranks of high temperatures.

Otherwise, why do you think Guangdong people can laugh when facing typhoons? Typhoons with less than level 18 have little lethality in coastal cities like Guangdong.

Coastal cities in Guangdong resist typhoons. The level is quite high. Moreover, typhoons will bring a lot of rainfall, a certain degree of cooling, and a small probability of holidays.

So the classic old joke is true. When a typhoon comes, only people from other provinces care about the safety of Cantonese people, while Cantonese people only care about holidays. It is better to say that Guangdong is boring than it is hot. In addition, the "summer" in Guangdong is relatively long. Also, Hainan used to belong to Guangdong Province

Because of the high humidity and the "sauna day" that is a Lingnan specialty, the body temperature in Guangzhou at 30 degrees is obviously higher than that in Beijing at 32 degrees.

Much higher. In the same way, winter in Lingnan is colder than in the "northern", and it is still due to the poor feeling due to humidity. In terms of my own experience.

1. The most fundamental reason is that facing the vast ocean, the summer monsoon blows relatively mild offshore air to South China. For inland areas at mid- to low-latitudes, if it continues to be sunny, temperatures may reach over 40°C from May to September, but the ocean can only reach around 30°C.

The Sahara Desert ranges from 18 degrees to 30 degrees north latitude. It is speculated that if there is no ocean monsoon regulation, the heat in South China and Jiangnan will be the same

Residents in South China often mention humidity and heat. In fact, it doesn’t mean being close to the sea means it will be wet! It’s not that the lower the latitude, the wetter it is! In fact, in inland low-altitude areas affected by the summer monsoon, such as the Central Plains, the extreme maximum dew point temperature (a measure of muggyness) is much higher than along the coast of South China. ?

The meaning of dew point temperature is this: the ability of air to hold water vapor is positively related to the temperature. As the temperature drops, the relative humidity will increase. Suppose

the humidity rises to 100% The temperature at that time is the dew point temperature. For example, if it is 35°C and the relative humidity is 50%, the dew point temperature is 23°C.

The sea surface temperature in the South China Sea rarely exceeds 30℃ in August, and the dew point temperature in Guangzhou and Shenzhen is generally 24-27℃. On the contrary, the summer monsoon carries high-temperature evaporated rivers and lakes from the inland northward. In the Central Plains, the dew point temperature can reach 30°C or even 32°C. Of course, it will also drop once it is suppressed by cold air.

to about 15℃.

If you don’t look at relative humidity, but only look at absolute humidity or dew point temperature, Shenzhen is not even as good as Wuhan and Yueyang, which have many rivers and lakes. When the subtropical high ridge is controlled, the latter two will continue. When it is sunny, the dew point can still remain around 28℃ for a long time, and the daily minimum temperature is around 30℃ until the cold air moves southward at the end of August.

2. As a Hubei native who has lived in the Pearl River Delta for 16 years, I am very surprised that "Guangdong used to be famous for its heat". The heat in the Pearl River Delta is not at the same level as the heat in the Lake

Northern Dog Days, right? The kind of heat in the dormitory of a university (a university in Hubei) still makes me shudder when I think about it 20 years later

I have to take countless showers every day. When I get up in the morning, my mat is definitely wet. I feel like I am wrapped in heat waves 24 hours a day, and then baked by another heat wave after another. Hot air restricts all human desires, including eating and sleeping.

So sleep and appetite are very poor. Fortunately, my hunger instinct drives me, and I can still eat a few bites, but not a lot.

3. The quality of sleep

is also very poor. It means that I have no energy when I wake up, and I am only half dreaming and half awake when I sleep. When being exposed to the sun

, everyone’s instinctive reaction is to frown. They often dream that the earth has deviated from its orbit and merged with the sun, especially when preparing for school

During the summer vacation when I took the postgraduate entrance examination, I completely ignored my image. I went to the teaching building or library every day in a sweatshirt and big pants and flip-flops. Fortunately, because of the hot weather, there were not many people in the teaching building, so sometimes I just reviewed shirtless. Fortunately, I only prepared for the exam that year. Since when did Guangdong become famous for its hot weather? The famous thing about Guangdong's temperature is that it doesn't snow in winter, and you can wear short-sleeved clothes to go to the flower market during the Spring Festival. Chongqing, Wuhan and Nanjing are famous for their heat.

There is a big flaw in the common sense of the Chinese people. My understanding of the map of China is just a traffic map, without the concept of three-dimensional mountains and rivers.

I only know north and south, not high and low.

As a trivia fact that is not too cold, Brasilia, the capital of Brazil, was built in the mountains. Although it is a low-latitude area, the average temperature throughout the year is only 17.7 degrees

, extremely comfortable.

Guangdong belongs to the subtropical zone. In the tropics, it is usually over 30 degrees all year round and over 20 degrees at night. If it rains, it comes and goes quickly (that is, showers are the most common).

It can be said that the temperature in the tropics is relatively stable, always more than 30 degrees. The closer to the tropics, the closer the temperature is, and the temperature difference in the four seasons of spring, summer, autumn and winter is not particularly obvious.

Of course, the same goes for going north. The closer you get to the North Pole, the more similar the temperature will be, but it will be another extreme. More than 40 degrees Celsius is too far away from the tropics or the North Pole. The temperature changes significantly in the four seasons, so there will be extremely hot weather like 40 degrees Celsius. ?

4. Note that although Guangdong is hot and humid, it has never been called a stove, but cities like Wuhan have always had it. When I was studying, Wuhan was famous as a furnace.

So it’s normal, but the ancient Central Plains people didn’t like the hot and humid climate in Guangdong, calling it miasma. Of course, modern European and American people don’t like it either, otherwise the British We won’t call beriberi athlete’s foot anymore.

In response to the hot and humid climate, people in Guangdong have made herbal tea from local materials. According to the ancient saying, it can actually be called miasma-avoiding tea, miasma-relieving tea, miasma-relieving soup, etc.

It depends on the situation. During this period, typhoons are blowing in Guangdong and the Pearl River Basin. Not long after "Mulan" left some time ago, we will usher in a new typhoon "Ma'an".

In fact, the drought in the Yangtze River Basin is caused by the subtropical high pressure, which is the high pressure that everyone is familiar with that blows typhoons heading towards Jiangsu and Zhejiang to Japan

. But this year it was so strong that one of the two typhoons was crushed to death and the other was crippled and then blew towards Japan.

China is so big that no typhoon can cover it. Cherish every typhoon and every drop of rain. You must know that people along the Yangtze River are suffering from the scorching sun and the 38°C moon.

Autumn is entering in North China, and typhoons are blowing in the Pearl River Basin. Only the Yangtze River Basin is injured in the world.

5. The heat in Guangdong is not extreme high temperature, but the heat lasts for a long time and the air is humid. Compared with extreme high temperatures, Guangdong is difficult to compare with the four major stoves. But the four big stoves are so hot that you have to wear long sleeves

. In Guangdong, the heat is generally uncomfortable from the beginning. The most outrageous thing is that in recent years, the duration of this high temperature even extends to December and the Spring Festival from time to time. The most extreme thing I tried was that during the seven-day Spring Festival holiday, I always wore short sleeves when I went out.

As for the humidity, it is mainly close to the sea, and there is a lot of water vapor on the ocean. The heat in different months forms its own characteristics. For example, the weather back in the south is muggy, hot and humid. When it comes to the most severe convective rain, when it rains, we jokingly call it "falling water", which means that what is falling is not rain, but boiling water.

Because of the long-term high temperature and rain, the high-temperature ground combines with the rainwater. It immediately turns into water vapor, and the feeling of a steamer comes immediately.