Why is the weather in Beijing mostly sunny?

The weather in Beijing is mostly sunny, mainly due to the following reasons:

1. Location: Beijing is located in the north of North China Plain, close to Mongolia and Northeast China, with a relatively dry climate, so Beijing is relatively less affected by the humid climate in the south.

2. Continental climate: Beijing has a temperate continental climate with four distinct seasons, cold and dry in winter and hot and windy in summer. Due to the influence of continental climate, there are relatively many sunny days in Beijing.

3. Influence of wind direction: There is often wind in Beijing, especially in spring and autumn, which can blow away clouds and smog and increase the probability of sunny days.

4. Urban characteristics: Beijing's urban buildings and roads are relatively wide, which makes the ventilation conditions in the city better and helps to reduce the heat island effect in the city, thus reducing the occurrence of haze weather.

In short, the weather in Beijing is mostly sunny, mainly due to the comprehensive effects of geographical location, continental climate, wind direction and urban characteristics.