I do not have access to the specific technical properties of Norways Labrador Antique Granite nor the local climate conditions. However, in general, certain types of granite may not be suitable for exterior applications in hot climates due to their porosity and susceptibility to heat-induced discoloration or cracking. Therefore, it is recommended to consult a professional stone supplier or geologist to determine the suitability of a particular type of granite for specific exterior applications in a hot climate region.