What's the difference between Tomb-Sweeping Day and Mid-Autumn Festival?

The festival time is different, Tomb-Sweeping Day, around April 5th in Gregorian calendar, after the vernal equinox 15. Mid-Autumn Festival, the fifteenth day of the seventh lunar month.

During Tomb-Sweeping Day, warm air activities became more and more frequent. Except for the northeast and northwest regions, the average daily temperature in most areas is higher than 12 degrees Celsius, and people will obviously feel the temperature rise. At this time, there is still cold air heading south, and cold and warm air masses often meet in the south of the Yangtze River, which makes the rainfall in the middle and lower reaches of the Yangtze River increase obviously. The coastal areas of South China frequently experienced heavy rainfall and other weather, and began to enter the pre-flood season.