Chameleons require access to water regularly to stay hydrated, but they can survive for a short period without it. The amount of time a chameleon can go without water depends on various factors such as age, size, and environmental conditions.
Typically, an adult chameleon can go without water for up to 24-48 hours if it has access to a humid environment and is not exposed to high temperatures. However, it is not recommended to deprive your chameleon of water intentionally, as dehydration can lead to health problems and even death.