When does it get windy and sandy in Beijing?

The season in which sandstorms occur in Beijing is from December to April of the following year, accounting for 62%. Spring, especially April, is the most common, and August and September are the least common, accounting for only 15%.

Beijing is one of the areas with high incidence of sandstorm activities and sandstorms. The so-called aeolian activity is a series of physical phenomena caused by strong winds acting on the dry surface. Usually fine particles of sand and dust fly into the atmosphere and are in a suspended state. At the same time, they are affected by the spatial movement of the atmosphere. Sand and dust move to tens, hundreds, thousands, or tens of thousands of kilometers with the help of high-altitude air currents. According to satellite remote sensing monitoring results, dust from the Asian continent can cross the Pacific Ocean and reach the central United States. Slightly larger sand particles make jumping movements on the surface, while coarse sand cannot jump and can only roll on the ground. The movement of dust and sand grains occurs at the same time, often giving people the feeling of darkness.