Y Yes it is - Sometimes.
Why is y sometimes a vowel....well, if a word has no other vowels - it would be considered a vowel. If a y comes at the end of the word it too is considered a vowel. If you find it in the middle of a word it also is considered a vowel. Sigh that clears everything up, right?
There is more...if y starts a word then it is considered a consonant or like in the word lawyer where it starts as a second syllable. I think of y as a "special" letter. One that can swing both ways. Sigh.... that clears everything up, right? It's the way I was taught and it's how I have explained it to my students. (Don't forget how y is part of diphthong...)
It really just depends....so...Y'all, why don't we go to the gym and make it one of our yearly chatty fun days....