Is a vapor barrier REALLY necessary for a wine cellar in Southern California?

I have an existing 2x6 framed,insultaed and finished room within my home. The thought of ripping all of the dryawall out and wrapping each cell is extremely unappealing. (The outside of two walls is not accessible) With very low humidity levels in San Diego County...Do I really need to take this step which is a necessity in other parts of the country?

Answers:
The easiest answer in that case is to have a dehumidifier in the room.

Other answers:
I would say you would be safe with no vapor barrier, I live in the upper midwest and I have several business associates who have cellars with no barriers and they have been trouble free so far.
I would say you would be safe with no vapor barrier, I live in the upper midwest and I have several business associates who have cellars with no barriers and they have been trouble free so far.
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