@robryk @Tarah I went to do some quick research and found that the subject is actually quite complex! https://en.m.wikipedia.org/wiki/Diffuse_sky_radiation talks about it, but on a sunny day the light is only about 75% overhead and the rest is diffuse. The lower the angle of the sun or the higher the clouds/pollution that number changes.

All that being said, when I'm standing under direct sunlight I feel pretty attacked.