The Complete Leopard Gecko Temperature Guide
Leopard gecko temperatures made simple: warm hide 88-92°F, cool side 70-77°F, the right heating methods, and the common mistakes that cause illness.
The Complete Leopard Gecko Temperature Guide
As ectotherms, leopard geckos cannot generate their own body heat. They depend entirely on their environment to digest food, fight infection, and stay active. Getting temperatures right is non-negotiable - see our full Leopard Gecko care guide for the rest of their housing and diet needs.
The Thermal Gradient
Leopard geckos need a range of temperatures so they can thermoregulate by moving between warm and cool zones:
- Warm hide (belly heat): 88-92°F
- Ambient warm side: 80-84°F
- Cool side: 70-77°F
Heating Methods
Under-tank heaters (UTHs) connected to a thermostat are the gold standard for belly heat. Never run a UTH without a thermostat. They can reach dangerous temperatures and cause burns. Overhead heat panels work too, but belly heat is preferred for this species.
What NOT to Do
- Hot rocks: uneven heat distribution causes burns
- Coil CHE (ceramic heat emitter) without thermostat: fire risk
- No cool side: prevents thermoregulation and causes chronic stress
Measuring Temperatures
Use an infrared (IR) temperature gun to check surface temps, especially on the warm hide floor. Digital thermometers with probes work for ambient air temps. Check temps at different times of day. Leopard geckos are nocturnal, so night temps matter too.
Night Temperatures
Temperatures can safely drop to 65°F at night, mimicking natural desert conditions. If your home drops below this, use a ceramic heat emitter (no light, just heat) on a thermostat.
Nail your temperatures and your leopard gecko will be a healthy, active, long-lived companion. Correct temperatures also directly support healthy sheds - see our complete guide to reptile shedding for how the two connect. For natural history, see the Leopard Gecko encyclopedia profile, or browse the rest of our Geckos care guide category.
Sources & Further Reading
- Arcadia Reptile research on heating and husbandry
- Frances Baines' research on reptile environmental needs and UV
- Zoo Med Laboratories reptile care resources
❓ Frequently Asked Questions
Does enclosure material (glass vs. PVC) change how I should set up heating?
Somewhat. PVC and wood enclosures retain heat more efficiently than glass, so a heater on the same thermostat setting can run warmer inside a PVC enclosure than in an all-glass tank of the same size. Always verify actual surface temperature with a thermometer or IR gun rather than assuming a setting that worked in one enclosure type will translate directly to another.
Why does my leopard gecko need a cool side if it likes the warm hide?
Without a cool zone, a gecko has no way to thermoregulate - moving between warm and cool areas is how it manages digestion and activity level throughout the day. A tank that's uniformly warm prevents this and causes chronic stress over time.
Is an infrared temperature gun really necessary, or will a stick-on thermometer work?
Stick-on analog thermometers are notoriously inaccurate. An infrared temperature gun lets you check the actual surface temperature of the warm hide floor, which is what matters most, rather than estimating from ambient air readings alone.
Do leopard gecko temperature needs change at night?
Yes - night temperatures can safely drop to around 65°F, mimicking natural desert cooling. If your home drops below that, a ceramic heat emitter on a thermostat (heat only, no light) maintains a safe minimum without disrupting the nocturnal schedule.
What's the biggest temperature mistake new keepers make?
Using a heat source without a thermostat. Under-tank heaters and ceramic heat emitters can reach dangerous temperatures without one, and this is one of the most common causes of thermal burns in captive leopard geckos.
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Written by Mike
Mike is the founder of Beastly Facts and a lifelong reptile enthusiast. He shares his home with Dex, a bearded dragon with strong opinions about crickets and basking schedules. Mike writes in-depth care guides, animal facts, and the occasional short story about life with exotic pets.
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