The weather affects it for me yeah. Overcast days with light cloud (which is most days where I live) make everything look sort of over saturated like the colour settings are messed up on a tv. Colours seem to jump out at you, especially reds and greens. Certain colours seem to ripple or dance about. I've had this for such a long time otherwise I would be worried I was having mild hallucinations. It's more related to hppd I think. Hypersensitivity of vision. Heightened sensitivity to danger as your system has been in a state of stress and fight/flight/freeze for an extended period. Might not be that reason but that's just a theory. Like everything to do with dp/dr, we are in the dark. No one knows for sure what's happening apart from the obvious link to anxiety and panic.