After autumn, it gets cold in the morning and evening, and it is still hot during the day. Which solar term is this?

This is the solar term phenomenon in beginning of autumn. Beginning of autumn is the thirteenth of the twenty-four solar terms. The solar term in front is summer, and the solar term behind is summer. The time is between August 7th and 9th, and the sun reaches longitude 135. Beginning of autumn is the first solar term in autumn, but at this time, the summer heat is hard to disappear, and it is still far from the real autumn. It gets cold in the morning and evening, but it's still hot during the day.

After beginning of autumn, the temperature in most parts of the country is still very high, and crops are growing vigorously. At this time, sunflowers are in full bloom. Sunflower petals are round and disc-shaped, and rotate with the rising and setting of the sun, so they are called "sunflowers". When the sunflower is ripe, probably in late autumn, you can taste the sunflower seeds.

Climatic characteristics of beginning of autumn.

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 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", which is also called "beginning of autumn falls 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.