Bearded Dragon Seasonal Care Through the Year
Keep a bearded dragon healthy in every season: winter warmth, summer cooling, light-cycle changes, brumation timing, and a year-round UVB replacement schedule.
A bearded dragon's enclosure is meant to be a little slice of the Australian outback, held steady no matter what is happening outside. But the seasons still reach into your home: winter cools the room and dries the air, summer heat can push a basking spot too high, and shortening days can nudge a mature dragon toward brumation. Good seasonal care is mostly about keeping the enclosure's core conditions stable while adjusting your heating and lighting to counteract what the weather and your HVAC are doing. This guide walks through caring for your dragon season by season, from winter warmth to summer cooling and the year-round tasks in between.
Year-Round Climate Gear
Zoo Med ReptiSun T5 HO 10.0 UVB Lamp
$39.99 on Amazon
The standard UVB bulb; replace every 6 to 12 months.
Fluker's Basking Spotlight Bulbs
$8.99 on Amazon
Provide the daytime basking heat your dragon needs.
Inkbird Reptile Thermostat Controller
$36.99 on Amazon
Hold safe temperatures through cold nights and warm days.
PAIZOO Digital Thermometer and Hygrometer
$13.99 on Amazon
Track temperature and humidity as the seasons change.
The constants that never change
Before adjusting for any season, remember the targets that stay the same all year. The basking spot should sit around 95 to 110F, hotter for juveniles, with a cool side of about 75 to 85F. At night, no heat is needed as long as the room stays above roughly 65F. Strong T5 HO 10.0 UVB should run the length of the enclosure, and humidity should stay low, around 30 to 40 percent. Seasonal care does not change these targets. It changes what you do to hit them as your home gets colder, hotter, drier, or more humid.
Winter care
Winter's main threat is cold creeping into the enclosure, especially overnight. As the room cools, the same lamps that held perfect temperatures in summer may no longer be enough. Watch for these issues:
- Cool side dropping too low: monitor it and add heat if the ambient temperature falls out of range.
- Cold nights: if your home dips below about 65F at night, a ceramic heat emitter on a thermostat can hold a safe nighttime temperature without adding light.
- Dry furnace air: winter heating dries the air further, so keep an eye on hydration and shedding.
- Brumation cues: shorter days may trigger a mature dragon's natural slowdown.
Use a thermostat to manage winter heating safely, and verify everything with thermometers rather than assuming the setup still hits the mark.
Summer care
Summer flips the problem: a warm room can push basking and ambient temperatures into dangerous territory, and overheating harms a dragon fast. The bulb that was ideal in a cool winter room may cook the enclosure in a hot one. Watch your thermometers closely and be ready to raise the basking bulb, switch to a lower wattage, improve airflow, or run air conditioning to keep the cool side in range. Never let the enclosure exceed safe temperatures, and make sure your dragon always has a genuinely cooler retreat and fresh water during heat waves.
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Light cycles and brumation
Many keepers gently mirror the natural year by running a longer photoperiod in summer and a shorter one in winter, which can support a healthy rhythm and may cue brumation in mature dragons. This is optional, since a steady 12-hour cycle works fine too, but if you adjust it, do so gradually. Brumation itself most often arrives in the cooler months. If your mature dragon goes lethargic and stops eating in fall or winter, brumation is the likely cause, but always rule out illness first by checking weight, eyes, stool, and breathing before settling in for the rest.
| Season | Main risk | Key action |
|---|---|---|
| Winter | Cold enclosure, especially at night | Add controlled heat, watch the cool side |
| Summer | Overheating in a warm room | Raise or lower bulb, improve cooling |
| Spring | Waking from brumation | Restore full light and heat, rehydrate |
| Fall | Shortening days, brumation onset | Rule out illness, monitor weight |
Year-round tasks
Some care does not follow the seasons but is easy to forget. The biggest is UVB replacement: T5 HO UVB bulbs lose their useful output every 6 to 12 months even while still glowing, and weak UVB causes metabolic bone disease. Pick a memorable time of year and replace the bulb on schedule like clockwork. Beyond that, keep the enclosure away from direct drafts and HVAC vents, monitor temperature and humidity with reliable gauges all year, and adjust your heating and lighting to counter whatever your home's climate is doing. Keep those core conditions steady through every season and your bearded dragon will stay healthy and active all year long.
Frequently Asked Questions
Does bearded dragon care change with the seasons?
Yes, in subtle but important ways. Bearded dragons take cues from light and temperature, so shorter winter days can trigger brumation, and a warm room in summer can push basking temperatures too high. Your job is to keep the enclosure's core conditions stable year-round while adjusting for what the seasons do to your home. That means watching room temperature, light cycles, and humidity, and tweaking heating and lighting as the weather shifts.
How do I keep my bearded dragon warm in winter?
In winter, the risk is a cold room dragging down enclosure temperatures, especially at night. Keep the basking spot at the usual 95 to 110F during the day, monitor the cool side so it does not fall too low, and use a thermostat to manage heating safely. If your home drops below about 65F at night, a ceramic heat emitter on a thermostat can hold a safe temperature. Always verify with thermometers rather than guessing.
How do I keep my bearded dragon cool in summer?
In summer, a hot room can push basking and ambient temperatures into dangerous territory. Watch your thermometers closely, since the same lamp that was perfect in winter may overheat the enclosure in a warm room. You may need to raise the basking bulb, switch to a lower-wattage bulb, improve air circulation, or use air conditioning to keep the cool side in range. Never let the enclosure exceed safe temperatures, as overheating is rapidly dangerous.
Should I change the light cycle by season?
Many keepers run a longer photoperiod in summer, around 12 to 14 hours, and a shorter one in winter, around 10 to 12 hours, to gently mimic natural daylight. This can support a natural rhythm and may cue a healthy brumation in mature dragons. It is optional; a steady 12-hour cycle year-round also works. If you do shift the cycle, change it gradually and keep UVB and heat correct throughout.
Does brumation happen at a certain time of year?
Brumation, the natural winter slowdown, most often begins in fall or winter as days shorten and temperatures fall, though captive dragons can brumate at unexpected times or skip it entirely. If your mature dragon becomes lethargic and stops eating in the cooler months, brumation is likely, but always rule out illness first by checking weight, eyes, stool, and breathing. A reptile vet visit is wise before a long winter brumation.
Do I need to replace UVB bulbs on a schedule?
Yes. UVB output fades long before a bulb stops producing visible light, so replace T5 HO UVB bulbs every 6 to 12 months according to the manufacturer, regardless of season. A handy habit is to tie replacement to a memorable time of year so you never forget. Weak or expired UVB leads to metabolic bone disease, so a calendar reminder for UVB replacement is one of the most important parts of year-round care.
How does indoor heating and cooling affect my dragon?
Home HVAC has a bigger effect on dragons than many keepers realize. Winter furnace heat dries the air, summer air conditioning can chill a room, and vents blowing near an enclosure cause temperature swings. Keep the enclosure away from direct drafts and vents, monitor temperature and humidity year-round with reliable gauges, and adjust your heating and lighting to counteract what your HVAC is doing to the room around the tank.
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