Which day is Bailu?

The Bailu in 2022 is 23:32:7 on September 7 in the Gregorian calendar, which is Wednesday, August 12 in the lunar calendar.

Bailu is the 15th solar term among the twenty-four solar terms, and the third solar term in autumn, which takes place from September 7th to 9th every year. Bailu is an important solar term that reflects the growth of cold air in nature. As the weather gradually turns cooler, it is still hot during the day when there is sunshine, but the temperature drops quickly after dusk, and the temperature difference between day and night is large.

Bailu solar term

The origin of the name Bailu

The almanac says that "Dou Zhigui is white dew, and the yin energy gradually becomes heavier, and it turns into dew, so it is named Bailu." . Entering "Bailu", the most obvious feeling is that the temperature difference between day and night is large, and you will feel a slight coolness at night. Although the heat may not disappear all at once, the sultry feeling will gradually fade away, adding a sense of autumn coolness in the morning and evening.

Meteorology shows that during the white dew season, as the weather gradually turns cooler, the sun is still hot during the day. After the sun sets, the temperature drops quickly. At night, the water vapor in the air condenses into tiny water droplets when it cools. It is very densely attached to the green stems, leaves or petals of flowers, plants and trees, and is white in color. Especially when exposed to the morning sun, it looks more crystal clear, white and flawless, which is very attractive, hence the name "white dew". .