Derry wrote:Neo, have to agree with the last two post,, PITCH the plastic cover in the trash,, it prevents air from circulating and can actually help hold moisture in the instrument,,
would let it hang in the open air for a couple weeks and see if the aroma changes,, even placing a fan on it to assure air is circulating inside,,
with the high humidity in your area you have no fear for it drying out but you do need to keep it from getting too much RH,,
if you only run the airconditioning in the evening try leaving it out over night and place in a case (recommend buying one) during the day time when the RH goes high and your not playing,,
Plastic guitar cover?
As with the previous posts, I would strongly discourage doing this for the very obvious reason of poor air circulation and condensation.
You may also consider a dehumidifier (if you do not have A/C) that you can run locally in a room. Do not set it too low as it will then run all the time - also try to keep doors/windows closed. A setting of 60% may help buffer the problem.
Once you have the humidity under control, I would suggest keeping the guitar in a case as it will act as a buffer to any rapid changes in climate.
I live in Canada and my guitars can, potentially, be exposed to a temperature range of -25 deg. C to 35 deg. C. That's an overall range of 60 deg. C! I have learned to always warm up my car in the winter before putting my guitar case inside so I do not risk damaging the guitar. Also, I always wait 1/2 hour before opening my case to allow the guitar to adjust to a temperature change (IE: going from a cold car to warm house). The point of this is to underline how the guitar case is a great thermal buffer.
Hope this helps.