Climatic characteristics of Hong Kong

Hong Kong has a subtropical climate, with a high annual temperature, with an average annual temperature of 22.8℃. Summer is hot and humid, and the temperature is around 27~33℃. It is cool and dry in winter, but it rarely drops below 5℃. It is rainy from May to September, and sometimes it rains heavily. There are typhoons from time to time between summer and autumn. There are many typhoons in Hong Kong from July to September, but tropical cyclones with different intensities may strike from May to165438+1October.

In the western North Pacific, the East China Sea and the South China Sea, an average of 30 tropical cyclones are formed every year, half of which reach typhoon intensity, and the highest wind speed is above118 km/h. The average annual rainfall in Hong Kong is 22 14.3mm, with the highest rainfall in August and the lowest rainfall in 65438+ 10.

In addition, the high-rise buildings in the urban area of Hong Kong are concentrated and densely populated, and the microclimate formed is easy to produce the heat island effect, which leads to the obvious temperature difference between the urban area and the suburbs. It is difficult to blow away the "suspended particles" in the air in the urban areas with high-rise buildings.

Extended data

1. Hong Kong faces the South China Sea and is adjacent to the continental shelf, with a vast ocean surface and many islands. Geographical environment of fishery production. There are more than 150 kinds of commercial marine fish in Hong Kong, mainly including red-shirt fish, nine-knot stick, big-eyed fish, yellow croaker, yellow-bellied fish, squid and so on.

2. Hong Kong is in a humid subtropical environment with abundant runoff and developed surface water system. But the water system is limited and there are no big rivers. Besides Shenzhen River, which is the boundary river between Hong Kong and Shenzhen, there are mainly Chengmen River, Wutong River, Lincun River, Yuen Long River and Jintian River. Most rivers are less than 5 miles in length, and the velocity and discharge are closely related to seasonal rainfall, which is extremely unstable in the middle of the year.

It is difficult to maintain the flow or cut off the flow in dry season, and the riverbed is exposed or partially exposed. In the rainy season, it is easy to reach the full bank water level and flood. Shenzhen River originates from Niuweiling in Wutongshan, flows into Shenzhen Bay from northeast to southwest, and leaves Lingdingyang.

3. In the history of Hong Kong's economic development, it has experienced two economic transformations. Before 1950, Hong Kong's economy was dominated by entrepot trade. From 1950s, Hong Kong began to industrialize, and by 1970, industrial exports accounted for 8 1% of the total exports, which marked the transformation of Hong Kong from a simple entrepot to an industrialized city and realized the first economic transformation of Hong Kong.

In the early 1970s, Hong Kong carried out the policy of economic diversification, and finance, real estate, trade and tourism developed rapidly. Especially since 1980s, mainland factors have become the most important external factors to promote Hong Kong's economic development. Most of Hong Kong's manufacturing industries moved to the mainland, and various service industries developed at a high speed, realizing the second economic transformation from manufacturing industries to service industries.

Baidu Encyclopedia _ Hong Kong (People's Republic of China (PRC) Hong Kong Special Administrative Region)