Oman Beige Marble can be used for exterior applications in hot climates, but it requires proper care and maintenance. The high temperature and exposure to sunlight can cause the marble to fade, crack or lose its shine. To avoid this, it is recommended to seal the marble surface regularly and clean it with a mild detergent and water solution. It is also important to avoid using acidic or abrasive cleaners that can damage the marble surface. Using a high-quality sealer and proper care can help to maintain the appearance and durability of Oman Beige Marble in exterior applications in hot climates.