Printable Humidity Guide

A compact humidity guide for acoustic and electric guitar owners who need seasonal reminders.

Humidity is one of the biggest reasons guitars suddenly change. This printable guide is a quick reminder of what to watch for.

Dry guitar warning signs

• Sharp fret ends.
• Lower action or new buzzing.
• Top sinking on an acoustic.
• Cracks or finish checking.
• Fretboard shrinkage.

Wet guitar warning signs

• Rising action.
• Swollen acoustic top.
• Bridge or saddle geometry changes.
• Muffled response.
• Sticky feel or corrosion.

Good habits

• Use a reliable hygrometer.
• Store guitars in stable rooms.
• Use case humidification when needed.
• Avoid car trunks, direct sun and heater vents.
• Let instruments acclimate after travel.

Bench rule

If humidity caused the guitar to move, stabilize it before making major setup or repair decisions. A guitar that is still moving is not ready to tell the whole truth.