Slight summer heat: July 6-July 8 every year, great summer heat: July 22-July 24 every year, and summer heat: August 22-August 24 every year, each with three days.

The summer heat is the eleventh solar term of the twenty-four solar terms, and it is also the end of the afternoon and the beginning of the month. On July 7th or 8th of every year in Gregorian calendar, it is considered as a slight summer heat when the sun reaches105.

The summer heat is the last solar term in summer, which lasts from July 22 to July 24 of the Gregorian calendar every year. When the sun reaches120, this year's summer heat is specifically July 23.

Summer is the 14th solar term among the 24 solar terms of the lunar calendar, which falls on August 23rd or 24th every year, when the sun reaches the longitude of the Yellow River 150 degrees. Being in the summer means that the hot summer day is coming to an end, because the dog days are over or coming to an end.

After the summer, the western Pacific subtropical high is still controlling all parts of the country. Therefore, it may still be hot during the summer and solar terms, and it will not be completely cool until after the autumn equinox and solar terms. The time is about 15 days.