Dog days are the hottest period of the year, usually in July and August every year, lasting about 30 to 40 days. It will be very hot, usually with a high temperature of 30 degrees. The dog days are not fixed every year. According to the calendar, it entered the sky in July of 16 and fell on August 25th this year.

According to the third Geng day of the summer solstice, if you count the dog days, you will enter from July 1 1, and according to the calendar, you will enter from July 16, subject to local traditional customs.