How long is the sandstorm in Beijing?

March to May, September to 165438+ October. Sandstorms in Beijing mostly occur from March to May and from September to 165438+ 10, with high incidence in April and 10, but the specific situation will be affected by many factors such as weather changes, natural environment and human activities. Sandstorm refers to a natural phenomenon that exposed sand on the surface, dust in arid areas and crop straws are blown up by the wind when the wind speed is high, forming a strong airflow at high altitude, bringing these substances into the atmosphere and spreading with the wind.