Many pet parents ask, what temperature should a bearded dragon cage be?
Is there a specific temperature needed to be followed?
Does it change when they age?
If you have all of those questions on your plate, then fret no more because that’s what I’ll be discussing fully and entirely in this guide!
What Temperature Should a Bearded Dragon Tank Be? (Per Age Group)
The proper temperature for a bearded dragon varies by age!
Yes, even in my experience, never have I thought that the age of a beardie would matter in this formula.
Before discussing the optimal temperature for each milestone or age of your bearded dragons, I would like you to watch this video!
It will help you understand the importance of bright light and heat in an enclosure.
Knowing the correct temperatures is relevant as it’s a factor that helps your beardies become healthier and align their body temperatures.
Best Tank Temperature for a Baby Bearded Dragon
The ideal, or best bearded dragon enclosure temp for baby beardies of hatchlings would be about 35 to 43 °C (95 to 110 °F). This is crucial; why? –Simply because your baby dragons wouldn’t be out in the wild.
Your baby bearded dragon wouldn’t get the nutrients and minerals it’s supposed to get outdoors.
EXPERT TIP: The cool spot area in the tank should be about 24 to 27 °C (75 to 80 °F). 
Best Enclosure Temperature for A Juvenile Bearded Dragon
The proper temperatures for juvenile beardies are almost the same as the requirement for baby beardies. So just how hot should a bearded dragon tank be for juveniles?
The basking temperature should be about 35 to 40 °C (95 to 105 °F), while the cool spot must revolve around 24 to 27 °C (75 to 80 °F).
Best Cage Temperature for an Adult Bearded Dragon
For full-grown adult dragons, lastly, they’ll usually require a much more complex temperature gradient. This is because they’ll do their usual regimes within the tank.
Daytime and nighttime temperatures should be about 25 to 29 °C (75 to 85 °F) and 21 to 24 °C (70 to 75 °F) respectively.
Maintain the cooler spot of the ambient temperature at 21 °C (70 °F).
EXPERT TIP: Play with the basking spot around 31 to 37 °C (88 to 100 °F). I set mine to be at a steady rate of 33 to 35 °C.
So, these are the recommended range of temperatures in your glass tanks, depending on how old your beardies are.
As a personal tip, NEVER forget to have a cool spot anywhere within the tank. To do this, ensure that you have a temperature gradient within the tank to promote balance.
QUICK TIP: You can use a digital thermometer to check the proper temperature gradient in bearded dragon tanks. Make sure that you place it on both ends to get accurate temperature readings.
What to Consider When Setting the Temp of Your Bearded Dragon Tanks
When setting the ideal temperature of your bearded dragon enclosure, it’ll be best to consider the day and night temperature, the placement within the household, the use of the heat lamp, and a lot more!
I made this guide easy and simple to understand, so you don’t need any other guide!
Knowing the Correct Nighttime and Daytime Temperatures
Because of their nature, the best temperatures for beardies during the day should play around 24 to 29 °C or 75 to 85 °F; nighttime should never fall below 19 °C (66 °F).
The basking temperature will be slightly higher than the daytime –it should be at about 35 °C (95 °F).
FUN FACT: Wild beardies strive in deserts, and deserts emit killer cold temperatures at night. So, don’t worry about it getting too cold; just don’t let the night temperature fall below 16 °C (61 °F).
During regular days, I have my light bulb turned off during nighttime. But, during winter, I keep it on. I use heat without light, making it a win-win for me and my pet reptile.
Understanding the Placement of the Tank Within the House
Even if you are prepared with UV light, you must place your glass terrariums in an area where the temperature can be controlled conveniently.
Most glass terrariums placed inside the house should be far from the windows to avoid stressing your beardie out. I remember mine near my bedside table to easily see through my beardie’s enclosure.
If your house tends to heat up, you need to know how to lower bearded dragon humidity to keep the humidity level fair.
Monitoring and Assessing the Tank Temperature
Lastly, you need to perform constant monitoring of the ambient temperature.
Not all tanks hold temperature accurately, so use track the cold and hot spot regularly using a digital probe thermometer.
QUICK NOTE: If your UV light has a digital interface, check it constantly. You want to keep the heat gradient consistent throughout the tank.
Considering the Size of Bearded Dragon Tanks
The recommended size of a tank is about four (4) to five (5) times larger than the beardie would be because of the cold and hot spot temperature.
You want a gradient of temperatures for regular activities, hotter temperatures for basking, and colder temperatures for cooling.
What Temperatures Are “Tolerable” For Bearded Dragons?
Although most bearded dragons would be able to live just fine within the 18 to 20 °C (64 to 68 °F), do whatever you can to refrain from it.
At first, I thought I was getting in the “danger zone” as I adopted my beardie during winter. As it turns out, it’s fine when the temperatures drop to 18 °C at night, so long as there’s a heat lamp.
By now, you should know that your beardie hates a colder temperature, and that’s where the importance of a heat lamp, UVB lights, heat tapes,  hand warmers, and other heaters come in.
If power is out, try using any means possible to make and keep your pet reptiles warm. Use any of the following to complement your bearded dragon tanks:
- Use Heat Tapes.
- Throw In Hand Warmers.
- Make Use of Portable Heaters.
- Cuddle With Your Beardie.
If you feel like you still lack knowledge, here are a few of the most asked questions relating to the required ambient temperature of your beardies.
Is 80 Degrees Too Cold For a Bearded Dragon?
80 °F or 27 °C is the right temperature for a cool spot inside bearded dragon tanks. This temperature is just right for your beardie to cool down during cage time.
Where to Put Thermometer In a Bearded Dragon Tank?
The best location to place a digital probe thermometer inside bearded dragon tanks would be near the floor for both ends (cool spot and hot spot) for accurate temperature readings.
How Do I Make My Bearded Dragon Tank Hotter?
You can make your bearded dragon tanks hotter by using a few materials, such as:
– Ceramic Heat Emitters.
– Heat Mats.
– Other Safe Heat Sources.
I recommend using ceramic heating elements for a more controlled and less troublesome experience.
Can it Get Too Hot For Bearded Dragons?
Yes, your beardies can feel when the temperature is a little over their limits. Some of the common signs that the temperature is more than what it should be and that your beardie is overheated include:
– Sitting in a corner for long periods of time.
If you’re confused and ask what temperature a bearded dragon cage should be, you have all the guidance you need!
Unlike me, who had to go through all the mistakes, you can go back to this guide the next time you get confused about giving your pet reptiles the optimal temperature they should get.
- 1. Bearded Dragons – Housing [Internet]. vca_corporate. Available from: https://vcahospitals.com/know-your-pet/bearded-dragons-housing
- 2. Caring for Your Pet Bearded Dragon [Internet]. Available from: https://cvm.ncsu.edu/wp-content/uploads/2016/12/Caring-for-your-Bearded-Dragon.pdf
What bearded dragon tank temperature do you use? Let us know below!
Dr. Linda Simon MVB MRCVS is a locum veterinary surgeon who has worked in London for the past 8 years. She graduated top of her class in small animal medicine from UCD, Dublin. She is currently a member of the Royal College of Veterinary Surgeons.
Linda is the resident vet for Woman magazine and a frequent contributor to People’s Friend Magazine, the Dogzone website, Vet Help Direct and Wag! Linda also writes content for the CVS veterinary group, Vetwriter and a number of other establishments.
As well as working in clinic, Linda is an online vet for www. JustAnswer.com where she has been providing online advice for thousands of owners since 2018.
In her spare time, Linda enjoys baking, yoga and running around after her young son!
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