The ISS orbits at about 400km. The distance to the moon is about 385,000km. From the moon, and especially the sun, the Earth and ISS are basically in the same place, so the phase of the moon doesn’t appreciably change in low earth orbit.

A werewolf on Europa (and others) could be in a full moon much more often. Even on the side facing away from the sun, it may still have plenty of light due to the reflection from Jupiter.

Maybe they would have to hide away from society once per month whenever they turn into a human monster?