[HPforGrownups] Full moon question for the folklorists

[Kathryn Cawte]

No: HPFGUIDX 97525

Carol asked


> I haven't studied werewolves (or vampires, for that matter), so I
> can't answer this question, but maybe some of the folklorists can. How
> long is a "full moon"? Is it just one night, or does each phase (new
> moon, first quarter, full moon, last quarter) last about a week for
> werewolves as it does on a Muggle calendar? In other words, how many
> days each month would Lupin be confined to the Shrieking Shack (or his
> living quarters at Hogwarts)?

K

Well I don't know whether one or three nights is more common in folklore
(but they're the two lengths of time I've seen most often) but according to
Fantastic Beasts in the Potterverse Lupin would transform for only one
night.

K