When is the summer of solstice?

June 2 1 or 22 every year is the summer solstice. From summer to the sun, the direct position of the sun on the ground reaches the northernmost point of the year, almost directly to the Tropic of Cancer, and the daytime in the northern hemisphere reaches the longest, and the farther north it is, the longer it is.

The summer solstice is the longest day in a year in the northern hemisphere, and most of the time from sunrise to sunset in southern China is about 14 hour. Although the summer solstice has the longest day and the highest sun angle, it is not the hottest time of the year. Because, when the heat near the local surface keeps accumulating and does not reach the maximum, the real high temperature weather is calculated according to the summer solstice and beginning of autumn.