What is summer white dew?

In summer, it means "going out of summer", which means leaving in the heat. It is the fourteenth solar term in the twenty-four solar terms of the lunar calendar, and the time is around August 23 of the Gregorian calendar. At this time, the sun reached the longitude 150. Summer solar terms mean that we are about to enter the autumn with meteorological significance. After the summer, the temperature in the area north of the Yangtze River in China gradually drops.

In the Millennium, the longitude of the sun is 165 degrees, which is around September 7 of the Gregorian calendar. At this time, the yin is getting heavier and the dew is white, so it is named Bailu. The Millennium is a typical autumn solar term. The weather is getting colder and colder, and the water vapor in the air often condenses into white dew on plants and other objects at night. The proverb says, "After the White Dew Festival, the night is cold and the day is hot", which means that there is a great temperature difference between day and night when the White Dew is held.