What solar terms get cooler?

beginning of autumn

beginning of autumn, the 13th of the 24 solar terms, is celebrated on August 7-9 of the Gregorian calendar every year. At this time, the bucket handle of the Big Dipper points to the southwest, and the sun reaches 135 longitude. Beginning of autumn is the first solar term and the starting point of autumn. Autumn begins in beginning of autumn and ends in beginning of winter, which is the result of celestial bodies' movement.

beginning of autumn doesn't mean that the extremely hot weather is over. beginning of autumn is still in the summer heat period, and the summer heat doesn't come out until the third solar term (summer heat) in autumn, and the weather is still very hot in early autumn. The so-called "heat is in three volts", and it is also called "falling after autumn", and there is at least "falling" hot weather after beginning of autumn. "Three volts" can be divided into initial, intermediate and final volts, and its date is determined by the matching of the date of solar terms and the date of the year of the main branch.

Autumn is a season of alternating heat and cold. "Guanzi" said: "Autumn begins with yin, so everything is harvested." After entering autumn, the climate changes from rainy and humid in summer to dry and rainy in autumn. In nature, the qi of Yin and Yang begins to change, the yang gradually closes, the yin gradually grows, and everything gradually falls with the sinking of the yang.