Dehydration

A creature requires an amount of water per day based on its size, as shown in the Water Needs per Day table. A creature that drinks less than half the required water for a day gains 1 Exhaustion level at the day’s end. Exhaustion caused by dehydration can’t be removed until the creature drinks the full amount of water required for a day. See also “Exhaustion.”

Water Needs per Day

Size	Water	Size	Water
Tiny	1/4 gallon	Large	4 gallons
Small	1 gallon	Huge	16 gallons
Medium	1 gallon	Gargantuan	64 gallons