Slight summer heat is the eleventh solar term of the twenty-four solar terms. It means that the sun reaches 15℃ on the longitude of the Yellow River at the end of the afternoon and the beginning of the non-month, which means that it is hot on July 68 of the Gregorian calendar every year. It is a slight heat, but it is not very hot. Although it is not the hottest season in a year, it is followed by it. There is a folk saying that "it's a little summer, but it's a big summer, and it's boiled on the top". Many places in China have entered the season with the most thunderstorms since the little summer.
The summer heat begins to enter the dog days. The so-called "heat is in the dog days". The dog days usually appear between the summer heat and the summer heat, which is the highest temperature, humid and sultry time in a year. Monsoon climate is the main feature of China climate. In summer, affected by warm and humid air currents from the ocean, many places in China are hot, humid and rainy. Although the sunshine is fierce, the temperature is high, the humidity is high and the rain is rainy in this season, for crops, the same period of rain and heat is conducive to growth.
Meteorological changes in light summer heat
The sunshine time in the northern hemisphere is gradually shortened in the summer, but why is the temperature still rising in most parts of China? This is because although the direct point of the sun is moving south, it is still directed to the northern hemisphere, and the heat in the northern hemisphere is still more than the branch, so the temperature will continue to rise during this period of time. The average temperature in southern China is about 26℃ during the light summer. In mid-July, the average daily temperature is higher than 30℃ and the maximum daily temperature is higher than 35℃ in the low-altitude valley area of southeast China.
The summer heat began to enter the dog days, and the air humidity increased after it entered the dog days. The reason for the high humidity in the dog days is that the southeast wind blows in the dog days, while the southeast is the Pacific Ocean and the Indian Ocean. The air is humid, and the humidity of the sea breeze causes the high humidity in the dog days. The dog days are characterized by "high temperature and high humidity" in the south of China, and "high temperature and dryness" in the north. A little summer heat is a little hot, not very hot, and it is the hottest time of the year when it comes to a big summer heat.