I do not have access to the current weather conditions or the technical specifications of Egypts new cream marble. However, in general, marble is a durable and weather-resistant material that can withstand hot climates. It is important to select a high-quality marble that is suitable for exterior applications and has been treated with weather-resistant sealant to protect it from potential damage. It is recommended to consult with a professional stone supplier or installer to determine if a particular marble is suitable for a specific climate and application.