Extreme Heat

HazardXDMGp. 682024

When the temperature is 100 degrees Fahrenheit or higher, a creature exposed to the extreme heat and without access to drinkable water must succeed on a Constitution saving throw at the end of each hour or gain 1 Exhaustion level. The DC is 5 for the first hour and increases by 1 for each additional hour. Creatures wearing Medium or Heavy armor have Disadvantage on the save. Creatures that have Resistance or Immunity to Fire damage automatically succeed on the save.

Raw data

{
  "name": "Extreme Heat",
  "page": 68,
  "__prop": "hazard",
  "source": "XDMG",
  "entries": [
    "When the temperature is 100 degrees Fahrenheit or higher, a creature exposed to the extreme heat and without access to drinkable water must succeed on a Constitution saving throw at the end of each hour or gain 1 {@condition Exhaustion|XPHB} level. The DC is 5 for the first hour and increases by 1 for each additional hour. Creatures wearing Medium or Heavy armor have {@variantrule Disadvantage|XPHB} on the save. Creatures that have {@variantrule Resistance|XPHB} or {@variantrule Immunity|XPHB} to Fire damage automatically succeed on the save."
  ],
  "trapHazType": "ENV"
}