What time of day do you weigh the least?
What time of day do you weigh the least? Use your scale every morning after you empty your bladder (and before you eat or drink anything), wearing as little clothing as possible. Because you lose water weight overnight, you'll get a lower number, too. Place your scale on a hard, even surface—no carpeting.
Why do I weigh less after a shower?
You have lost water weight due to the heat from the shower. Your body is trying to keep its temperature constant and attempts to do that by evaporative cooling (which doesn't work quite as well in the humid environment of a shower).