How long does the rainy season last in the south?

The rainy season generally lasts for 20 days, mainly from mid-June to early July, because the ocean water vapor in the southern subtropical high-pressure belt moves northward and is affected by the Huai River in the Qinling Mountains, maintaining in the middle and lower reaches of the Yangtze River, forming a rain belt.

The rainy season in the south ends from late May to early June, when cold air from the north and warm air from the south and north converge in South China to form a quasi-stationary front in South China. Around the end of June, the warm air strengthened, and the quasi-stationary front moved north to the Jianghuai area, becoming a quasi-stationary front of the Jianghuai region.

As the warm air from the south carries a large amount of water vapour, a large amount of convective activity will occur when a colder air mass is encountered. Due to the similarity of cold and warm air during this period, the front stayed in the Jianghuai region. The rainy season is in the middle and lower reaches of the Yangtze River in China, Taiwan, south-central Japan and southern Korea, and there is a continuous cloudy and rainy weather phenomenon every month.

The rainy season is mainly affected by the peak system of the rainy season, sometimes it rains a lot, sometimes it rains very little, sometimes it rains for a short time, sometimes it lasts for many days. Due to the influence of the frontal system, the average rainfall during the Meiyu period in Taiwan is 450 to 500 mm, which is a quarter of the annual average rainfall.

The rainy season in the south is from June to July.

The rainy season is generally around June 14th, adjacent to the Dragon Boat Festival every year, and the old people with rich seasonal experience divide the rainy season into early plum, late plum and so on.

Early plum, you can understand the meaning when you hear it, it refers to the early bloom of the rainy season in Hangzhou, and the rainy season that comes at the end of May and early June is considered early plum.

Chi Mei, which occurred in late June.

Criteria for entering and exiting plums:

Into the plum: 5 consecutive days of average temperature over 22, there are 4 days for the rainy day is considered to be into the plum, out of the plum: on the contrary, 5 consecutive days of the temperature of the concubine more than 30, and do not judge the rain, it represents the plum.

There is an ancient proverb that "the rain hits the yellow plum head, and there is no sun on the forty-fifth day", which is the characteristics of high temperature and humidity in the rainy season, not only that, but the coastal cities in South China will also be hit by typhoons, and the weather humidity will increase, and clothes, furniture, etc. are more susceptible to mildew and moisture.

Where does the rainy season occur?

Rainy day. Other provinces also have the plum rainy season but it is not obvious, the typical plum rainy season mainly occurs in China from the Huanghuai region in the north, south to the central and northern parts of Hunan, Jiangxi and Zhejiang provinces, west to Yichang, Hubei, and east to the middle and lower reaches of the Yangtze River in Shanghai. The middle and lower reaches of the Yangtze River in China are usually around mid-June to early July every year, which is the rainy season.

The sky was overcast for days and days, and the precipitation was continuous, sometimes heavy and sometimes light. Therefore, there is a popular proverb in the south of our country: "The rain hits the yellow plum head, and there is no sun for forty-five days." Continuous rain, high temperatures, and high humidity are the main characteristics of the rainy season.

On the east coast of the continent, the subtropical high is controlled by the western side of the subtropical high in summer, and the sinking air is relatively dry, but it absorbs a large amount of water vapor from the warm and humid sea surface, thus bringing abundant precipitation and producing a humid subtropical climate. Due to the strong contrast between land and sea, a unique monsoon climate has been formed, which is characterized by rainy summers and dry winters, and rainfall is concentrated in summer, which is the opposite of the Mediterranean climate.

If compared with the East Coast of the United States at the same latitude, it is also completely different. There will be no long-term rainy weather before and after the arrival of the summer monsoon in the mid-latitudes of the east coast of the United States, and people have never felt hot and humid for a long time, and mildew is difficult to appear.

It can be seen that the precipitation seasons are very different at the same latitude. Therefore, in the world, only the two banks of the middle and lower reaches of the Yangtze River in China, roughly from the east of Yichang, the area between 29 and 33 degrees north latitude, as well as the southeast of Japan and the southernmost part of the Korean Peninsula have Huangmei appearing.

The rainy season in the south is the month of the year. From late April to early May every year, the cold air from the north and the warm air from the south to the north converge in South China, forming a quasi-stationary front in South China. Around the end of May, the warm air strengthened, and the quasi-stationary front moved north to the Jianghuai region, becoming a quasi-stationary front (also known as the Meiyu front).

The rainy season is a weather phenomenon that occurs in the middle and lower reaches of the Yangtze River in China, Taiwan, south-central Japan, and southern Korea. Note: At present, the East Asian summer monsoon is believed to start with the outbreak of the South China Sea summer monsoon (on average around late May), which belongs to the category of tropical southwest monsoon, and the South China Sea summer monsoon gradually strengthens and lifts northward, and the Meiyu period is lifted northward to the middle and lower reaches of the Yangtze River, and merges with the subtropical southwest monsoon on the northwest side of the subtropical high, and forms the Meiyu belt at the intersection of cold air and wind speed convergence.