Crested Gecko Temperature & Humidity

Crested Gecko Temperature & Humidity Guide

Getting temperature and humidity right is essential for keeping a healthy crested gecko. These geckos come from the cool, humid forests of New Caledonia, so they thrive in conditions that might surprise beginners — cooler than many other reptiles and much more humid.

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Temperature

Crested geckos are one of the few reptiles that do not require a basking spot. They prefer cooler ambient temperatures and can actually be stressed or harmed by excessive heat.

Ideal daytime temperature: 20–25°C (68–77°F)
Night-time temperature: Can drop to 16–18°C (61–64°F) — a natural cool-down is beneficial
Maximum safe temperature: Do not exceed 27–28°C (80–82°F) for extended periods

In the UK, room temperature is often ideal for crested geckos without any additional heating — especially in spring and autumn. During summer heatwaves, monitor temperatures carefully and use fans or cooling methods if needed. Avoid placing enclosures near radiators, south-facing windows, or other heat sources.

Heating Equipment

If your home drops below 18°C in winter, a low-wattage heat mat on the side of the enclosure (never the bottom) controlled by a thermostat can help maintain a safe minimum temperature.

Humidity

Crested geckos require moderate to high humidity to stay healthy and hydrated. Low humidity over extended periods can lead to shedding problems and dehydration.

Daytime humidity: 50–60% (allowing a dry-out period after misting)
Night-time humidity: 70–80% after evening misting

Misting Routine

A consistent misting routine is the best way to manage humidity naturally:

Mist the enclosure lightly once or twice a day — typically morning and evening.
Allow the enclosure to partially dry out between mistings to prevent bacterial and mould growth.
Use a hand mister, pressure sprayer, or automated misting system depending on your setup.
Mist the walls and plants rather than directly on the gecko.

Monitoring Humidity

Use a digital hygrometer to monitor humidity levels accurately. Analogue gauges can be unreliable. Place it at mid-height in the enclosure for the most representative reading.

Seasonal Variation

In the wild, crested geckos experience a cooler, drier winter season. Replicating this with slightly lower temperatures and reduced misting frequency in winter (October–February in the UK) can be beneficial, particularly for breeding geckos. This is not strictly necessary for pet geckos but can support natural behaviour and breeding cycles.

Shedding and Humidity

Adequate humidity is critical during shedding. If your gecko struggles to shed — particularly around the toes — increase misting frequency temporarily or provide a small humid hide lined with damp moss. Retained shed on the toes can restrict circulation and cause injury if left untreated.