Is the solstice the hottest summer in summer? What is the temperature?

Introduction: The summer solstice is one of the 24 solar terms in China, and it is also an important symbol of China's meteorology. June 2 1 or 22 is the summer solstice, which is the longest sunshine day in the whole year. So is it the hottest? What's the temperature from summer solstice? If you want to know, let's take a look at my introduction to the summer solstice solar terms.

Is it the hottest in summer on the solstice?

The solstice in summer is not the hottest time. The summer solstice indicates that the temperature begins to rise. As the summer solstice approaches, the heat absorbed by the earth from the sun gradually increases. As summer approaches, more heat is absorbed during the day than radiated at night, so the average temperature will rise slowly. The absorbed heat will reach the maximum in summer solstice, and then begin to decline, but the absorption rate of heat is still greater than the emissivity.

Summer solstice is one of the 24 solar terms. Every year on June 2 1 or so, the sun starts when it reaches 90 degrees of the yellow meridian. This is the first definite solar term. In the 7th century BC, the ancients used earth gauges to measure the shadow of the sun, and the daylight was the shortest from the summer solstice, so it was called "the summer solstice".

What's the temperature from summer solstice?

The temperature around the summer solstice is about 25-39 degrees.

The summer solstice occurs on June 2 1 or 22 of the Gregorian calendar, which is one of the 24 solar terms. The biggest feature of summer solstice is that on this day, the sun directly returns to the north, which is the longest day in China and even the northern hemisphere. After the past two days, the days will decrease a little, which means that the summer solstice represents the past day by day. After summer solstice, there will be more and more rainy days. The beginning of summer is actually a long summer, and the summer solstice is June. Although it is in the middle reaches, it is not the hottest.

The solstice in summer is not the hottest time. The hottest time is actually July and August. As for the temperature in China, the hottest time in China is actually July and August, and then June. Moreover, the temperature is different in different regions, generally high in the north and high in non-coastal cities.

Weather characteristics of summer solstice solar terms

1, convective weather

After the summer solstice, the ground is heated strongly and the air convection is strong, and thunderstorms are often easy to form in the afternoon to evening. This kind of hot thunderstorm comes and goes, and the rainfall range is small. People call it "dividing fields in summer and rain". Liu Yuxi, a poet in the Tang Dynasty, skillfully used this weather to write a famous poem, "The east rises and the west falls, and the road is sunny and sunny." The heavy precipitation brought by convective weather is not always as beautiful as described in the poem, and it often brings local disasters.

2. Rainstorm weather

During the summer solstice, the temperature is high, the sunshine is sufficient, the crops grow rapidly, and the physiological and ecological water demand is high in most parts of China. At this time, the precipitation has a great influence on agricultural output, and there is a saying that "raindrops are worth tens of millions in summer solstice". At this time, the precipitation in the middle and lower reaches of the Yangtze River can generally meet the needs of crop growth.

In most cases, during the "summer solstice" period, the middle and lower reaches of the Yangtze River and the Jianghuai basin are rainy and frequently rainstorm, which is easy to cause floods and even threaten people's lives and property. Attention should be paid to strengthening flood control work.

3, Jianghuai Meiyu

Summer solstice season is the "Meiyu" season in Jianghuai area. At this time, it is the ripe period of plums in Jiangnan, and the air is very humid. Cold and warm air masses meet here, forming a trough of low pressure, leading to rainy weather. In this weather, the utensils are moldy and the human body feels uncomfortable. Some mosquitoes breed quickly, and some intestinal bacteria are easy to breed. At this time, we should pay attention to drinking water hygiene and try not to eat cold food to prevent the occurrence and spread of infectious diseases.

4. High temperature sauna

Like the winter solstice, the summer solstice is also a solar term reflecting the changes of the four seasons. Astronomy stipulates that the summer solstice is the beginning of summer in the northern hemisphere. After the summer solstice, although the direct point of the sun gradually moved southward, the days in the northern hemisphere became shorter and the nights became longer. However, because the heat radiated from the sun to the ground is still more than the heat radiated from the ground to the air, the temperature will continue to rise in the future, so there is a saying that it is not too hot from summer to the sun. According to the data of 195 1 -2006, the historical extremes of many cities in the north appeared after the summer solstice.