the inland part of Zhuhai city is inclined from northwest to southeast, with various landforms, mainly plains (accounting for 25.5%) and hills (accounting for 58.68%), as well as low mountains and beaches. The terrain is gentle, leaning against the mountains and facing the sea, the sea area is vast, there are hundreds of islands crouching, there are strange peaks and rocks and beautiful bays and beaches. The inland is composed of hills, coasts and plains of Phoenix Mountain and Jiangjun 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 the alluvial deposits of Xijiang River and Beijiang River. The coastal beach outside the Pearl River Estuary is vast, and the underwater beach slopes slowly to the shore. The coastline and island coastline are 69 kilometers long. Phoenix Mountain, the highest inland, is 437 meters above sea level, and most of the islands are more than 1 meters above sea level. The main mineral resources are crystal, iron, tungsten, tin, manganese, potash feldspar and high-quality quartz sand. Natural soils include lateritic red soil, stony soil, coastal sandy soil and saline swamp soil. The main rivers are Modaomen, Jinxingmen, Niwan Gate, Jiti Gate, Hutiaomen, Qianshan Waterway, Wan Chai Macau Reach and Nanshuili, with a total length of 135 kilometers. 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 177-23mm, 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 prevails from October to March of the following year, which is a dry season. The annual average relative humidity of Zhuhai's atmosphere is 79%. In the early spring of each year, the drizzle is continuous, and the relative humidity of the air is relatively high, sometimes reaching 1%. The disastrous weather in Zhuhai is mainly typhoon and rainstorm, and winter in some years is affected by cold wave and low temperature. Typhoons occur mostly from June to October, with an average of about 4 times a year. The typhoon that seriously affects Zhuhai City is once a year on average, and there are about five heavy rains.
Zhuhai is located in the southwest of the Pearl River Estuary in Guangdong Province, with gentle terrain, close to the mountains and facing the sea, vast sea area, and hundreds of islands crouching. It belongs to a subtropical maritime climate, often affected by the subtropical monsoon, with frequent thunderstorms, in which the rainfall is concentrated from April to August, accounting for more than 7% of the annual rainfall.
Spring is a changeable season in Zhuhai all year round. In the season, the easterly wind is dominant, the wind direction is changeable, and the temperature varies greatly. In some years, there will be "late spring cold" weather from March to April. May to June is the first flood season of the rainy season, with strong convective weather such as thunderstorms and showers, and rainfall increases. The weather is crisp in autumn. Until early November, cold air activity began to increase, the temperature gradually decreased, and the dry season began. The winter duration is about one month, and the northeast monsoon prevails. At the same time, the sea surface is often accompanied by strong winds of magnitude 6 or above. It is mostly sunny in winter, especially in the previous winter when the rainfall is scarce and the weather is dry.
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