Guide · Shelters
Why tents get condensation
Updated October 5, 2026
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What causes it
Cold nights, no wind, wet ground, and cooking near the tent all add water to the air. The fly is the cold surface. The water beads there and then drips if you brush it.
Pitching in a depression that collects damp air makes it worse.
Vent on purpose
Keep a vent open even in light rain if you can do it without a drip line onto the bag. Stake the tent out so the fly is not touching the inner. Touching walls move water onto your quilt.
Fly-first pitching keeps the inner drier while you set up in rain.
Single wall is a skill
A single-wall tent will be wetter inside on a still night. Wipe it down in the morning and do not store it wet for the week. If you hate this, buy a double wall and carry the extra ounces.
Gear for this guide
FAQ
Is a wet fly a leak?
Not if the water is on the inside and the seams are tight. Touch the outer face. Rain that comes through a seam is a leak.
Should I cook in the vestibule?
No. Steam and carbon monoxide are both bad guests.
Does a footprint stop condensation?
No. It protects the floor from the ground.