Samail (Arabic: سمائل‎) is a Wilayah (Town) located in the Ad Dakhiliyah Region (Interior Region) of the Sultanate of Oman close to the Samail Gap a break in the Hajar Mountains. Samail is known to have the warmest average nights for a city in the world, with an average July night dipping to just about 89 degrees Fahrenheit. Its population is approximately 40,000 people. Samail's main land is split into two districts: Saffalah and Alayah.