# Crested and leopard gecko humidity

> Pick your gecko, enter your measured humidity, and see whether it sits inside the published band — plus the RSPCA spray cadence and what to do next. The day bands come from ReptiFiles; the RSPCA crested gecko care sheet backs the spray-to-peak wording.

Use the interactive calculator on the page: https://petguidecalc.com/reptile/gecko-humidity/. Pick crested or leopard gecko, enter your measured humidity, and get the verdict, RSPCA spray cadence, and next-mist hint.

## What humidity does a crested or leopard gecko need?

Crested geckos thrive at 60–80% during the day with a mist-to-peak rhythm that lets the enclosure dry back to 40–50% before re-misting. Leopard geckos sit at 20–40% ambient humidity with a humid hide for shedding — no regular misting. Both ranges come from ReptiFiles; the crested rhythm matches the RSPCA care sheet.

## Day bands at a glance

| Species | Day target | Next mist hint | Source |
|---|---|---|---|
| Crested gecko | 60–80% | Mist 1–2 times daily; spray to a peak and let the enclosure dry back to 40–50% before re-misting. | ReptiFiles · Crested Gecko Care, RSPCA · Crested Gecko Care Sheet |
| Leopard gecko | 20–40% | Keep the enclosure mostly dry; provide a humid hide filled with damp moss during shedding. | ReptiFiles · Leopard Gecko Care |

Leopard geckos use a humid hide during shed instead of any regular misting. For a broader species set, see the [reptile humidity calculator](/reptile/humidity-calculator/).

## How the check works

The two day bands come from ReptiFiles: crested gecko 60–80% and leopard gecko 20–40%. Both bands come from the same single-source humidity table that powers the broader humidity-calculator page, so the two tools stay consistent.

The verdict compares your measured humidity against the day band for the species you picked. A reading within the 60–80% crested band reads OK for a crested gecko.

Worked example: a crested gecko at 70% sits within the 60–80% band; a leopard gecko at 30% sits within the 20–40% band; and a crested at peak 85% (just after misting) is above the band — that's expected and the enclosure should dry back before re-misting.

## Gecko humidity questions

**Q: What humidity should a crested gecko enclosure be?**

60–80% during the day, per ReptiFiles. The RSPCA crested gecko care sheet recommends misting to a peak and letting the enclosure dry back to 40–50% before spraying again — for most setups that means once or twice a day.

**Q: Do leopard geckos need misting?**

No. Leopard geckos come from a dry habitat and thrive at 20–40% ambient humidity, per ReptiFiles. Provide a humid hide filled with damp moss during shedding — that localised humidity is enough for a clean shed.

**Q: How often should I mist a crested gecko?**

Once or twice a day is a typical starting point. The RSPCA crested gecko care sheet recommends misting to a peak and letting the enclosure dry back to 40–50% before re-misting — use a digital hygrometer to confirm the dry-out, then re-mist when it lands near 50%.

**Q: Why does my crested gecko enclosure read 85% after misting?**

That is expected right after a spray. The enclosure should dry back toward 60–80% over the next few hours; the RSPCA spray-to-peak rhythm is built around that swing. Persistent 85%+ readings mean the enclosure is not drying out — improve ventilation or cut the spray volume.

**Q: Where should I measure gecko humidity?**

Use a digital hygrometer at mid-enclosure height, away from the water bowl and the misting path. Readings near the substrate or directly under the spray nozzle run higher than the ambient level the day bands refer to.

## More reptile tools

- [Reptile humidity calculator](/reptile/humidity-calculator/)
- [Reptile care tools](/reptile/)
- [Pet snake care guide](/reptile/snake-care/)

## Sources

Each day band and the RSPCA spray cadence are tied to one of the guides below.

- [Thermoregulation and thermal performance of crested geckos (Correlophus ciliatus) suggest an extended optimality hypothesis for the evolution of thermoregulatory set-points](https://doi.org/10.1002/jez.2388) — Aparicio Ramirez A, Perez K, Telemeco RS, J Exp Zool A Ecol Integr Physiol, 2021.
- [Crested Gecko Care Guide](https://reptifiles.com/crested-gecko-care/) — ReptiFiles, reptifiles.com. Source for the 60–80% crested day band and the mist-to-peak rhythm.
- [Leopard Gecko Care Guide](https://reptifiles.com/leopard-gecko-care/) — ReptiFiles, reptifiles.com. Source for the 20–40% leopard day band and the humid-hide approach to shedding.
- [Caring for Your Crested Gecko](https://education.rspca.org.uk/en/web/rspca/adviceandwelfare/pets/other/crestedgecko) — RSPCA, education.rspca.org.uk. Welfare advice for crested gecko husbandry, including mist to a peak and let the enclosure dry between sprays.

_Educational resource, not veterinary advice. PetGuideCalc — https://petguidecalc.com_