The weather in the northern Yellow Sea

Affected by monsoon, the Yellow Sea is cold and dry in winter and warm and humid in summer. From June 65438 to March of the following year, northerly winds prevailed, mostly northwest winds in the north, with an average wind speed of 6 ~ 7m/s; It is windy in the south, with an average wind speed of 8-9 m/s, often invaded by cold air or cold waves. Strong cold air can cool the coast of the Yellow Sea 10~ 15℃. April is the monsoon season and the wind direction is unstable. In May, the south wind began to appear. From June to August, southeasterly winds prevail, with an average wind speed of 5-6 m/s, which is often attacked by typhoons in the northern East China Sea, and strong winds are mainly generated by typhoons. Strong winds above magnitude 6 (10.8 ~13.8m/s) occur in the Yellow Sea all year round, but they are strong in winter and frequent in spring. Windy areas are mostly located in the Bohai Strait to the top of Shandong Peninsula, Qianliyan and Jeju Island.

65438+1October has the lowest average temperature of -2~6℃, and the temperature difference between north and south reaches 8℃. It is the highest in August, and the average temperature in the whole sea area is 25~27℃. The average annual precipitation in the south is about 1000 mm, and that in the north is 500 mm. June-August is the rainy season, and the precipitation can account for half of the whole year. In winter, spring and early summer, there are many sea fogs along the coast, especially in July.

The western part of the Yellow Sea is from Chengshanjiao to Maimai Island, the northern part is from Dalu Island to Dalian, and the eastern part is the waters near Yalu River Estuary, Jianghua Bay and Jeju Island. Among them, the average foggy day in Chengshanjiao is 83 days a year, which can reach 96 days a year, and the longest continuous foggy day record is as long as 27 days, which is called "fog cave".