Data from wild Jackson’s chameleons in Hawaii (
T. j. xantholophus) shows that they prefer areas with daytime temperatures between 61-81°F
(16-27°C) and nighttime temps between 39-64°F
(4-18°C). (
Preliminary Study of the Behavior and Ecology of Jackson’s Chameleon of Maui, Hawaii) However, this data can only be applied to wild-caught
T. j. xantholophus and their descendants, and should not be applied to the other two subspecies.
As pets, Jackson’s chameleon keepers have noticed that they get the best results with the following temperature gradient:
- Basking area (hot spot) — 83°F (28°C)
- Shade temperature — 68-72°F (20-23°C)
- Nighttime temps — 50-59°F (15°C)
Temperatures are sourced from Dr. Frances Baines’
UV Tool, adjusted according to observations from Bill Strand and Petr Necas.
Note that
T. j. merumontanus prefers cooler temperatures than the other two, with a basking temperature around 79°F (26°C), shade temperatures of 64-68°F (18-22°C), and a nighttime drop preferably under 59°F (15°C).