Solar radiation and solar terms

This day is the sunshine chart around June 22nd, and the solar term in China is the summer solstice.

At this time, the latitude of direct sunlight is (23 27' north latitude).

Summer solstice is one of the 24 solar terms, which occurs on June 2 1 or 22 of the Gregorian calendar every year.

On the day of the summer solstice, the position where the sun directly hits the ground reaches the northernmost point of the year, almost directly on the tropic of cancer (23 27' north latitude).