The wind direction of the four seasons

Spring: More time to blow the east wind.

Because China and Hong Kong are often influenced by the ocean currents east of China and Hong Kong. Summer: Southwest wind or south wind or southeast wind blows most of the time. When the southwest monsoon or trough of low pressure affects China and Hongkong.

Southwest wind often blows.

When the ridge of high pressure affects China and Hongkong.

It is often a south wind or a southeast wind. Autumn and winter: often affected by the northeast monsoon.

Blow north wind or east wind.

China and Hongkong can be divided into four distinct seasons in a year, but the length of each season is different. 1. Winter is 165438+ 10 to February of the following year. In this season, dry and cold northerly winds prevail in China and Hongkong, with the lowest temperature in a year, of which 65438+ 10 is the coldest, and the average temperature in early winter is15.6c. The weather is generally sunny and dry, but with the decrease of monsoon thickness, the cloud cover gradually increases. After the arrival of the new year, the weather became gloomy and drizzling. There is a cold peak crossing this season, which makes the wind stronger and the temperature drops obviously. Sometimes, there are clouds, light rain or Mao Mao rain. There is little chance of heavy rain in China and Hongkong in winter, but when the border is disturbed by high altitude, there will be moderate and long-lasting rainfall occasionally. 2. Spring March and April are spring in China and Hongkong. This is a transitional season, characterized by wet and foggy weather. At this time, the continental anticyclone weakened, and the cold wave from the north became inconspicuous and not dense. With the invasion of warm air in the south, the temperature rises gradually, which also causes the widespread distribution of clouds and low-level clouds, which are usually stable. By the end of spring, due to the rising sea temperature along the coast of South China, there was little fog, the low-level clouds gradually turned into cumulus clouds, and the rainfall also turned into showers. Summer begins in May and ends in mid-September, which is a long and hot season. Southerly winds prevail in China and Hongkong in summer, and the temperature remains high. The average monthly temperature is above 25℃, and the absolute maximum monthly temperature is above 35℃. At this time, the summer monsoon is not obvious and is often interrupted by interference. Tropical cyclones sometimes affect China and Hongkong, adding easterly winds to the summer monsoon and bringing a lot of rainfall. In summer, the clouds are mainly cumulus-shaped, and the rainfall is mostly thunderstorms. The probability of showers is 3-4 hours after dawn, with the least at dusk. 4. Autumn is a short autumn in China and Hongkong, from late September to165438+1early October. After September, the air pressure in Chinese mainland began to rise, the humid tropical maritime air mass gradually weakened and retreated, and the temperature and rainfall decreased one after another. 65438+ 10 In the middle of June, an obvious northeast monsoon formed, blowing easterly, the relative humidity dropped sharply, the cloud cover decreased, and the sunshine was bright, which was a month with more sunshine time throughout the year. The frequency and intensity of tropical cyclones decrease from the peak, and the rainfall is mostly local showers, but the rainfall is not large. Big five. LRN/ Science/National Geographic/200706/T20070621_124373 Four monsoon directions.

Reference: Heart of Heaven