Geographical knowledge, what climate zone does Zhuhai belong to?

Zhuhai [1] is an important city at the southern tip of the Pearl River Delta, located in the southwest of the Pearl River Estuary in Guangdong Province, with geographical coordinates of 2148' ~ 22 27' north latitude and 0/13 03' ~1east longitude. It faces Hong Kong across the sea in the east, Macau in the south, Xinhui and Taishan in the west and Zhongshan in the north. Zhuhai is one of the five special economic zones in China. Zhuhai has a land area of 170 1 km2 and a population of148.110000 (statistics in 2008), making it the smallest city in Guangdong province. The coastline of Zhuhai is 604 kilometers long, and there are 146 large and small islands, which has the reputation of "the city of 100 islands". In the vast waters of the Pearl River Estuary, there are large and small 146 islands, most of which are concentrated in Wanshan Islands in the eastern waters.

Zhuhai has a pleasant climate, with obvious alternation of winter and summer monsoon, high annual temperature, occasional cold current and small annual and daily temperature difference, and belongs to a transitional maritime climate between the south subtropical zone and the tropical zone. The city is rich in solar energy and heat energy. The annual average sunshine hours are 199 1.8 hours, and the annual total solar radiation is 465 1.6 MJ/m2. The city's temperature is higher than that of neighboring counties and cities in the Pearl River Delta, with an average annual temperature of 22.4℃. Most areas are frost-free all the year round, which is one of the areas with the richest heat in the south subtropical region of the province.

The inland part of Zhuhai city is inclined from northwest to southeast, with diverse topography, mainly plains (accounting for 25.5%) and hills (accounting for 58.68%), with low mountains and beaches. The terrain is gentle, facing the mountains and the sea, and the sea area is vast. There are hundreds of islands crouching, with strange peaks and rocks and beautiful bay beaches. The interior consists of hills, coasts and plains of Phoenix Mountain and General Mountain. The largest island is Sanzao Island, covering an area of about 78 square kilometers. Land mountains, hills, terraces and plains are divided into criss-crossing water networks. The coastal alluvial plain is formed by alluvial sediments of Xijiang River and Beijiang River. The coastal beach outside the Pearl River Estuary is vast, and the underwater beach slowly inclines to the shore. The coastline and island coastline are 690 kilometers long. The highest inland Phoenix Mountain is 437 meters above sea level, and most islands are above 100 meters above sea level. The main mineral resources are crystal, iron, tungsten, tin, manganese, potash feldspar and high-quality quartz sand. Natural soil includes lateritic red soil, stony soil, coastal sandy soil and salt marsh soil. The main rivers are Modaomen, Jinxingmen, Niwan Gate, Jiti Gate, Hutiaomen, Qianshan Waterway, Wan Chai Macau Reach and Nanshui, with a total length of135km.

Zhuhai has a subtropical maritime climate, with no severe cold in winter, abundant rainfall and pleasant climate. Often attacked by the south subtropical monsoon, there are many thunderstorms. The annual average temperature is 22.3℃, and the minimum temperature is 2.5℃. The annual rainfall is 1770-2300mm, and the southeast monsoon prevails from April to September, which is the rainy season, and the precipitation accounts for 85% of the whole year. The northeast monsoon prevailed from June 5438 to March the following year, and it was a dry season.

The annual average relative humidity of Zhuhai atmosphere is 79%. In early spring every year, it is drizzling, and the relative humidity of the air is relatively high, sometimes reaching 100%.

The disastrous weather in Zhuhai is mainly typhoon and rainstorm, and winter in some years is affected by cold wave and low temperature. Typhoons usually occur from June to 10, with an average of about 4 times a year. The average number of typhoons that seriously affect Zhuhai is/kloc-0 per year, and the number of rainstorms is about 5.