What is the solar term on August 7th?

Beginning of autumn is the first solar term in autumn. 20 16 beginning of autumn time: 09:52:58 on August 7th, Gregorian calendar.

There is a folk saying that it will be cool for three days in early autumn, but after beginning of autumn, most areas are still dominated by sunny and cloudy weather, and the rainfall weather is not obvious. The temperature can still reach 365,438+0-33℃, the daily average temperature is still high, and the weather is still "sultry". However, due to the large temperature difference between morning and evening and noon, people's somatosensory temperature will be lower than a few days ago in the morning and evening.

There will be autumn tiger weather after beginning of autumn. Autumn Tiger in China refers to the short-term hot weather after beginning of autumn. It usually happens at the turn of August and September and lasts about 7- 15 days. The reason for the formation of autumn tiger is that the western Pacific subtropical high that controls China gradually moves southward in autumn, but moves northward. Under the control of this high pressure, it turned cloudy and sunny locally, with strong solar radiation and rising temperature. This regenerative weather is called "old woman summer" weather in Europe and "Indian summer" weather in North America.

Due to the vast territory of China, the performance of "Autumn Tiger" is slightly different. For example, the autumn tigers in South China are later than those in the Yangtze River valley, generally delayed by 2-4 solar terms. In addition, the prevention and control time of autumn tigers is long and short every year, ranging from half a month to two months; Sometimes the autumn tiger comes and goes, and then goes back. "Autumn Tiger" weather, although the temperature is high, but generally speaking, the air is dry and sunny, it will not be very hot in the morning and evening, and it will not be too hot to breathe.

Autumn is the transitional season between summer and winter. After autumn in beginning of autumn, the direct sunlight point moved southward from1132 ′ n to 5 57 ′ n. As the direct sunlight point moved southward, the daytime time shortened, the sunshine hours decreased day by day, and the light and heat given to the northern hemisphere also decreased day by day. The weakening of solar radiation gradually reduces the heat available on the ground during the day. But with the extension of the night, the heat radiated from the surface to space increases. As the heat absorbed by the ground is gradually less than the heat lost by the ground, the temperature begins to change from high to low.