The main factors leading to the difference of climate characteristics between Lianyungang and Rotterdam in the Netherlands are as follows

Lianyungang is located in the south of the warm temperate zone, with an annual average temperature of 65438 04℃, a monthly average temperature of 65438 0.4℃, an extreme low temperature of-65438 09.5℃, an average temperature of 26.5℃ in July and an extreme high temperature of 39.9℃. The average precipitation over the years is more than 920 mm, and the frost-free period is 220 days. The dominant wind direction is southeast wind. Due to the adjustment of the ocean, the climate type is humid monsoon climate with a little maritime climate characteristics. Four distinct seasons, cold and dry in winter and high temperature and rainy in summer. There is plenty of sunshine and moderate rainfall. The climate is in the transitional zone between warm temperate zone and subtropical zone, with four distinct seasons, pleasant cold and warm, abundant sunshine and moderate rainfall. The annual average temperature is 14. 1℃, the annual average precipitation is 883.6 mm, and the frost-free period is 220 days. The dominant wind direction is southeast wind.

Rotterdam lies at 5155' north latitude and 4 29' east longitude. It is located in the temperate zone, forming a temperate climate. Rotterdam lies on the Atlantic coast. Influenced by the Atlantic westerly wind all the year round. The west wind brings rich water vapor from the Atlantic Ocean, where there is abundant precipitation and rainy weather, so it is cooler in summer. There is a warm North Atlantic current flowing along the coast, which has the function of warming and humidifying, so it won't be very cold in winter.

The dominant factors are: Rotterdam is close to the Atlantic Ocean and is influenced by warm and humid air currents from the ocean all the year round, while Lianyungang is in the transitional zone between temperate zone and subtropical zone, and the Yellow Sea has little influence on it. Therefore, it can be concluded that Rotterdam's climate is influenced by the Atlantic Ocean and belongs to temperate maritime climate, while Lianyungang is regulated by the ocean, but because it is located in the transitional zone between temperate zone and subtropical zone, it forms a temperate monsoon climate.