A good way to visualize the apparent movement of the sun across time is using the free stellarium program. First input your location and time you would like to view because location will determine what the apparent movement of the sun is. For example, if you live in Seattle WA and facing the west observing the position of the sun for the periods of September 1 - 30 you will notice the sun appears to move downward and to the left in the sky (see screenshots).