Pretty normal, sadly. I have fogging in all my tail lights, and my fog lights, depending on the humidity level of the day. Seattle has similar weather to e.g. Endiburgh, so this is expected. It’s a little ridiculous, of course.
Tesla will replace lights at their discretion if you have actual water in them and not surface condensation/fogging. However, I’ve not read that this makes any difference.
So, for me personally, I’ve had fogging in all four tail lights, fogging in my fog lights, b-pillar cameras and windshield cameras housing.
It’s almost like Tesla never designed this car for wet environments!