Oman has a hot climate and very little rainfall. Annual rainfall in Muscat averages 100 mm (3.9 in), falling mostly in January. Dhofar is subject to the southwest monsoon, and rainfall up to 640 mm (25.2 in) has been recorded in the rainy season from late June to October.
Language: Arabic is the official language of Oman, and English and Asian languages such as Hindi, Urdu, and Baluchi are also widely spoken. Swahili is spoken by some, a legacy of Oman's former East African presence. English is widely used in business.
The Omani Rial, denoted by OMR, is the official currency of Oman. One Rial is subdivided into 1000 Baiza. In January 2005, one Rial equaled 2.59067 US Dollars, making it the fourth highest valued currency.
The population of Oman in 2003 was estimated by the United Nations at 2, 851, 000, which placed it as number 134 in population among the 193 nations of the world. In that year approximately 2% of the population was over 65 years of age, with another 35% of the population under 15 years of age.
Muscat is the capital of Oman. It is also the seat of government and largest city in the Governorate of Muscat. As of 2008, the population of the Muscat metropolitan area was 1, 090, 797.