Yes, Hungarys Pannonia Terracotta Marble can be used in exterior applications in hot climates. Terracotta marble is known for its durability and resistance to extreme weather conditions, making it suitable for various outdoor applications, including hot climates. It can withstand high temperatures without warping, fading, or deteriorating. However, it is always recommended to consult with a professional architect or contractor to ensure the specific application and installation methods are suitable for the climate and environment.