The main characteristics of the general atmospheric circulation of the Northern Hemisphere in spring 2023 (from March to May) are as follows. The polar vortex is characterized by a unipole pattern, and its core area takes on an axisymmetric aspect and is stronger than the historical average. The circulation in the middle and high latitudes presents a 4-wave pattern, and the westerlies over the North Pacific are relatively straight, resembling those in spring 2021. In spring, the cold air is weak and sea fog occurs frequently over offshore areas of China: 5 gale processes above Beaufort scale 8 occur, including three produced by cold air, one generated by extratropical cyclones, and one caused by typhoon; 8 obvious sea fog processes happen, including three in March, two in April, and three in May. There are 11 rough sea wave processes with the maximum wave height above 2.0 m, and 4 of them exceed 3.0 m. The sea surface temperature is gradually increasing, and high temperature gradient is found over the areas from the East China Sea to the offshore areas of South China. There are 7 tropical cyclones in the globe in total, with two of them generated over western North Pacific and 5 of them reaching the intensity of super typhoon.