Yes, Turkeys Rainbow Travertine can be used for exterior applications in hot climates. Travertine is a natural stone that is known for its durability and heat resistance, making it suitable for use in various outdoor settings. Its ability to withstand high temperatures and resist weathering makes it a popular choice for hot climates where the stone can be exposed to intense sunlight and heat. However, it is important to note that proper sealing and maintenance may be required to ensure the longevity and appearance of the stone in such conditions.