202 1 When is the summer vacation? Introduction to solar terms.

1, 202 1 The summer solar term is 5: 34: 48 on August 23rd of Gregorian calendar and July16th of lunar calendar.

2. long summer is the 14th of the 24 solar terms. Fighting refers to the southwest; The solar meridian reaches150; Celebrate on August 24th of the Gregorian calendar every year. Being in the heat is "out of the heat", that is, out of the heat. During the summer heat, the direct point of the sun continued to move southward, the solar radiation weakened, the subtropical high also withdrew southward, the temperature gradually dropped, and the summer heat gradually disappeared. Being in summer means that hot and difficult weather is coming to an end. Although it is still hot during this period, it has shown a downward trend.

3. Climatic characteristics during summer: After summer, the temperature gradually drops and the temperature difference between day and night gradually increases, but the temperature is still high during the day. One of the reasons for this phenomenon is that the direct point of the sun continues to move southward, and the solar radiation decreases; Second, the subtropical high moved southward by leaps and bounds, and the Mongolian cold high was eager to try.

4. Although the overall temperature will show a downward trend, the temperature will still return to heat for a short time in summer, that is, "autumn tiger" usually occurs between August and September, and the duration of autumn tiger is different every year, generally speaking, it lasts for half a month to two months. Although the temperature is high, generally speaking, the air is dry and sunny, and the temperature difference between morning and evening will not be too high. The reason for the autumn tiger weather is that the subtropical high, which retreated to the south, resumed control again, forming a hot summer weather with crisp weather and strong sunshine.