I think that is the best time to weigh yourself. It tends to be more consistent. But if you start doing mornings, you should always do mornings. I sometimes weigh at other times out of curiosity, but for tracking it is mornings only. I wake up, go to the bathroom and weigh with nothing on. I feel that is he closest I will get to my actual body weight. Later in the day it matters when/what I drank or ate, when I go to the bathroom and what I am wearing.