Reasons for the changeable weather in summer

The temperature is high in summer, so frontal rain will form. Due to the high temperature in summer, the sun evaporates the water in the land into water vapor, forming a warm and humid airflow. In the process of warm and humid air rising, due to the continuous decrease of temperature, water vapor will cool and condense, form clouds and cause rainfall. This kind of rain is called frontal rain. Because of this, some places are often sunny in the morning, but it rains heavily in the afternoon, such as Amazon.