There is a mystery about the direction of the sun.

I come from Dongtai, Jiangsu. The latitude and longitude are 32 51'08 "north latitude and 0/2019' 09" east longitude. North of the Tropic of Cancer, but why did I see the sun in the north window this afternoon? In summer, the sun rises in the northeast and sets in the northwest, so you can see the sun in the north window in the afternoon. Shouldn't the sun north of the Tropic of Cancer always be in the southern sky? The sun must be due south at noon, and it is mostly in the southern sky around noon. But in summer, shortly after sunrise and before sunset, the sun is in the northern sky. Look at a picture.

Notice the rightmost curve.

I hope it helps you.