How to Keep Your Bearded Dragon Cool This Summer | TopFlight Dubia

How to Keep Your Bearded Dragon Cool This Summer | TopFlight Dubia

Posted by TopFlight Dubia on Jun 10th 2025

Keeping your bearded dragon cool during the summer is important for their health and happiness. 

When temperatures are just right, your pet can thrive, digest food properly, and stay active. However, summer heat can quickly turn into a problem for the bearded dragons, which can lead to:

  • Overheating and heat stress
  • Dehydration and lethargy
  • Difficulty regulating body temperature
  • Increased risk of respiratory problems

If not handled well, these problems can seriously affect your pet’s well-being. Here, TopFlight Dubia experts will share the effective strategies to keep your pet cool in summer. 

Why Is It Important to Keep Your Bearded Dragon Cool?

  • They are cold-blooded, meaning that they must move between warm and cool areas to maintain their ideal temperature. 
  • A lack of cool side in an enclosure can cause stress, leading to a decline in their immune system and making them more susceptible to diseases. 
  • Bearded dragons may behave overly active or lethargic if their temperature isn’t regulated properly. 

Tip 1: Increase Ventilation

Good airflow within and around your dragon’s enclosure helps dissipate excess heat, prevent stagnant air, and reduce humidity buildup that could otherwise lead to respiratory issues. 

Here are some practical ways to increase ventilation:

  • Use mesh panels or mesh tops to allow air flow freely. 
  • Place a small fan outside or above the enclosure. However, avoid directing fans straight onto your bearded dragon, as direct drafts can cause stress and health issues. 
  • Open enclosure doors or panels when possible, especially during the hottest parts of the day. 
  • Position the enclosure in a room with good cross-ventilation or near air conditioning vents (without exposing your dragon to direct cold drafts).
  • Use thermostats that are connected to heat lamps and do regular digital thermometer checks. 

Additional Tips

  • During heat waves or particularly hot days, increased ventilation alone might not suffice. Consider temporarily reducing heat bulb wattage, turning off heat lamps during peak heat, or relocating the enclosure to a cooler room if possible. 
  • Be mindful of enclosure materials–dark colored or wooden tanks can retain more heat, so ventilation becomes even more important in such setups. 

Tip 2: Maintain a Thermal Gradient 

A thermal gradient provides your bearded dragon with a warm basking area and a cooler retreat. It helps to regulate its body temperature naturally by moving between zones. 

How To Create a Thermal Gradient

1. Heating Setup

Use a heat source such as a heat lamp with halogen bulbs or a ceramic heat emitter installed in a ceramic bulb holder. These should be connected to a compatible high-range thermostat to keep the temperature consistent and safe. 

For Heat Lamp

A dimming thermostat is recommended to adjust the heat output gradually.

For Ceramic Heat Emitters

A pulse proportional thermostat works best to control heat cycles effectively.

2. Placement

Here are the steps to ensure proper placement:

  • Install the heating system at one end of the vivarium ceiling. 
  • Place your UVB lamp nearby on the same end to create a designated warm side or basking spot. 

NOTE: The opposite end of the enclosure becomes the cool side, providing a comfortable cooler zone. The center area between these ends will have intermediate temperatures. 

Specific Temperature Ranges to Aim For:

Zone 

Temperature Range 

Description 

Basking Spot

100–110°F (38–43°C)

This is the hottest area where your dragon will warm up. 

Warm Side (Near Basking Spot)

85–90°F (29–32°C)

A warm but less intense zone for thermoregulation.

Cool Side

75–80°F (24–27°C)

Provide a refuge for your dragon to cool down. 

Nighttime Temperatures 

65–75 °F(can drop to 59°F) 18–24 °F(can drop to 15°F)

Safe nighttime temperature range, mimicking desert drops. 

3. Monitor Temperature

Monitor the warm end's temperature with at least one accurate digital thermometer, but ideally, use two thermometers—one on the warm side and one on the cool side. 

This helps observe the full thermal gradient and ensures your bearded dragon can freely choose its preferred temperature zone. 

Tip 3: Provide a Water Source 

Here are several ways to provide water and help your dragon regulate its temperature:

  • Provide a water bowl in the enclosure.
  • Use lukewarm baths or shallow water soaks.
  • Mist the dragon lightly with cool water.
  • Allow your pet to roam freely or keep it outside the enclosure when possible. 

Tip 4: Offer Hydration Foods

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Category

Recommended Foods

Notes

Daily Staples

Collard greens, Mustard greens, Turnip greens, Bell Peppers.

These leafy greens and vegetables are full of nutrients and offer good hydration.

Occasional/Treats

Bell Peppers, Cucumbers. Zucchini.

These offer good hydration and nutrients, but should be rotated for variety. 

Limit or Avoid

Iceberg Lettuce, Romaine Lettuce, Spinach, Kale (in excess),  and most fruits.

Iceberg and Romaine lettuce offer minimal nutrition. Most fruits are high in sugar and should be given sparingly as a rare treat. 

 

Tip: You can also feed insects with high moisture content, like Dubia roaches (59.06%–62.70% moisture). Make sure to purchase the high-quality Dubia roaches online.

Tip 5: Regular Health Checks

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Regular health checks ensure your dragon remains happy and thriving, especially during temperature fluctuations. Here is how you can keep a close eye on your pet’s well-being:

1. Check for Signs of Overheating

Watch for signs of heat stress such as:

  • Mouth wide open to dissipate heat through evaporation
  • Lethargy and loss of appetite
  • May appear confused, unable to balance properly, or stumble
  • Lack of droppings 
  • Their eyes may appear bulging or sunken
  • The beard may darken
  • Their skin may appear dry, and they may be less hydrated

If you notice any of these symptoms, immediately adjust the temperature or provide a cool retreat. 

2. Visit the Vet Regularly

Consider having a vet checkup to monitor your pet’s health. This will help detect any potential issues easily, especially related to temperature stress, hydration, or diet. Make sure to find a reputable reptile vet in your area and check their pricing beforehand. 

Conclusion 

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Taking care of a bearded dragon during the summer heat requires proactive steps to ensure they stay comfortable, healthy, and stress-free. Remember, each bearded dragon has unique needs, so always adjust your care routine accordingly based on their behavior and environmental factors. 

Final Tip: To help your bearded dragon cool down naturally, create a cooling substrate mix of 40% play sand and 60% topsoil. This combination will help your pet dig and burrow, which helps regulate body temperature. 

Frequently Asked Questions (FAQs)

01. Is it normal for your bearded dragon to feel cold?

Yes, it is totally normal for your pet to feel cold at times. Reptiles, including bearded dragons, are cold-blooded, which means that they cannot regulate their body temperature internally. Instead, they rely on external heat sources to warm themselves.

02. What to do if your bearded dragon is too hot?

First, remove the bearded dragon from the overly hot environment and place them somewhere the ambient temperature is around 75–80°F without direct sunlight, a basking lamp, or on top of a heating pad.

03. How to tell if a bearded dragon is too cold?

One of the common ways bearded dragons react to being too cold is by darkening their skin. This behavior helps them absorb more heat from their environment. If they are trying to warm up, their beard and body may turn black, especially in the morning or when the ambient temperature drops. If you notice this behavior, it is a sign that the temperature in their enclosure may be too low.

04. Why is your beardie shivering?

Shivering or shaking in the bearded dragon is often a sign of a calcium or vitamin D deficiency.

These deficiencies can lead to metabolic bone disease (MBD), a condition where the bones become weakened and brittle.

05. Can Beardies brumate in summer?

Yes, bearded dragons can brumate in summer depending on their individual cycle. Many bearded dragons show signs of brumation in late fall (around October or November). Some start brumating as early as June, which is winter in their native Australian habitat.

However, brumation signs can also indicate illness or parasites; it is important to consult a vet to check that your pet is truly brumating and not sick.