Werewolves- nocturnal or diurnal?

Im pretty sure that the full moon rises concurrently with the setting sun .

 

Actually, that looks like either morning or evening on those mountains (San Bernadino mountains, perchance? Looks like home to me )... And the moon usually appears full for three days (the day before the actual "full", the day of, and the day after)...
The time of when the moon actually goes "Full" can be anytime at all, but you probably won't SEE the full moon except at night (it can vary by about an hour each way... an hour before sunset to an hour after sunrise), due to the relation of the moon to the earth and sun... that's why it's full.

So, the moment of Full moon-ness may be in the middle of the day, in which case, um, the werewolves will change right then, even if it's daylight.

Right?

 

Werewolves are neither nocturnal (night) or diurnal (day), but diel (24 hours).

 

I would say nocturnal or crepuscular depending on their eyesight. Canines should have a tapetum lucidum, which is handy at night. Even if they have the hominid style bright light adapted eye there would be too many predators (us) around during the daytime to be safely diurnal

 

This is correct. And it sets as the sun rises.

You're joking, right?

For the moon to be full it must be on the side of the Earth opposite the sun. This means it is mostly visible at night. But since the Earth, Moon, and Sun rarely are in a straight line (the plane of the moon's orbit is inclined to the plane of the Earth's orbit) there will often be an hour or so when the full moon is visible in daylight.

An eclipse of the Moon only occurs when the three bodies are in a straight line, so on the night of an eclipse of the moon, the moon will rise just as the sun sets, and will set just as the sun rises.

An eclipse of the sun occurs at the new moon, again when the three bodies are lined up, and the moon and sun rise and set together. The moon is diurnal when new, nocturnal when full.

When speaking of popular culture (as opposed to physical reality) questions like those posed in the OP have no hard and fast answers, because culture changes.

Werewolves and vampires occupy a similar place in popular culture, yet vampires are pretty much always regarded as evil, whereas werewolves are often viewed as misguided and not responsible for their actions. In the old Hollywood movies the werewolf usually wanted to be killed, so as not to hurt anybody else. More recent movies often have evil werewolves who enjoy their power and delight in carnage.

As a traditionalist, I prefer Lon Chaney. But there have been werewolf movies in which they change at will, regardless of the time of day or phase of the moon. In some movies they change only when the light of the full moon actually hits them, and in others it merely has to be full moon. I think the more traditional movies had them changing back to people in the morning once the sun had risen and the moon had set. If I was writing a werewolf movie the man would change to a wolf when a cat's eyes are round, and would change back when the cat's eyes go back to oval.

"... Does Minnaloushe know that his pupils will pass from change to change.
and that from round to crescent, from crescent to round they range?
Minnaloushe runs through the grass, alone, important, and wise,
and lifts to the changing moon his changing eyes."

-- W.B. Yeats (quoted from memory)

 

This cat is an orange striped Bengal tiger. If the wolf is smart he'll keep his distance or he'll get eaten. Werewolves change back to their human form when they die.

 

Isn't there an aberration of extreme hairiness that may have given rise to the myths? Nothing to do with moonrise, or wolves. (goes to search) Yeah, here we go. Hypertrichosis, it's called.