What is the solar term in autumn?

The thirteenth solar term of the "twenty-four solar terms" and the first solar term in autumn. August 7th or 8th of the Gregorian calendar every year. Beginning of autumn is the turning point when the Yang gradually closes, the Yin gradually grows, and the Yang gradually turns into the Yin. In nature, everything begins to move from lush to bleak and mature.

Beginning of autumn doesn't mean the extreme hot weather is over. Beginning of autumn is still in the summer heat period, and the summer heat will not come out until the second solar term in autumn. It's still very hot in early autumn. The so-called "heat is in the dog days" is also called "beginning of autumn drops later", and there is at least "falling" hot weather after beginning of autumn. According to the calculation method of "dog days", the days of "beginning of autumn" are often in the middle of dog days, that is to say, the heat is not over, and the real coolness usually comes after the Millennium solar terms. The watershed of summer heat is not in the solar terms in beginning of autumn.

After entering autumn, the climate changed from rainy and humid in summer to dry and rainy in autumn. In nature, the qi of Yin and Yang began to change, and everything gradually declined with the sinking of Yang. The most obvious change in autumn is that the leaves of vegetation change from lush green to yellow, and the leaves begin to fall and the crops begin to mature.

"beginning of autumn" is not only an important solar term, but also an important Spring Festival. In ancient times, after the autumn harvest, people would choose the auspicious day of the zodiac, on the one hand, to worship and thank God and ancestors for their blessings, on the other hand, to taste the newly harvested rice grains and celebrate the hard-won harvest. There are folk customs of "beginning of autumn", such as "pasting autumn fertilizer", "biting autumn" and "gnawing autumn".