Relief and drainage

While the small islands in both groups are rocky and low-lying, rising only a few feet above sea level, the main island is more varied in appearance. Geologically, the island consists of gently folded layers of sedimentary rocks: limestones, sandstones, and marls (loose clay, sand, or silt) formed during the Cretaceous, Paleogene, and Neogene periods (i.e., from about 145 to 2.6 million years ago). The central region is rocky and barren, rising to 440 feet (134 metres) above sea level at Al-Dukhān Hill (Jabal Al-Dukhān), the country’s highest point. The southern and western lowlands consist of a bleak sandy plain with some salt marshes, while the northern and northwestern coasts afford a striking contrast, forming a narrow belt of date palms and vegetable gardens irrigated from prolific springs and wells that tap artesian water. The source of this water is precipitation on the western mountains of Saudi Arabia. The abundance of fresh water has provided Bahrain with fertile land, from which it gained importance historically as a harbour and trading centre in the Persian Gulf. Economic developments and population growth have outstripped the available artesian water in the country, and some three-fifths of the water used now comes from seawater desalinization plants powered by natural gas.

Climate

Summer in Bahrain is unpleasant, as high temperatures frequently coincide with high humidity. Midday temperatures from May to October exceed 90 °F (32 °C), often reaching 95 °F (35 °C) or higher; summer nights are sultry and humid. Winters are cooler and more pleasant, with mean temperatures from December to March dipping to 70 °F (21 °C). Rainfall is confined to the winter months and averages only 3 inches (75 mm) per year, but this may vary from almost nothing to double that amount. On average, rain falls only about 10 days a year. Sunshine is abundant year-round. The predominant wind is the damp, northwesterly shamāl; the qaws, a hot, dry south wind, is less frequent and brings sand, dust, and low humidity.

Plant and animal life

Some 200 different species of desert plants grow in the bare, arid portions of the archipelago, while the irrigated and cultivated areas of the islands support fruit trees, fodder crops, and vegetables. The variety of animals is limited by the desert conditions. Gazelle and hares are not yet extinct, and lizards and jerboas (desert rodents) are common; the mongoose—probably imported from India—is found in the irrigated areas. Birdlife is sparse except in spring and autumn, when many varieties of migratory birds rest temporarily in Bahrain while traveling to and from higher temperate latitudes.

Ethnic groups

Roughly half of the population is Arab, and most inhabitants are native-born Bahrainis, but some are Palestinians, Omanis, or Saudis. Foreign-born inhabitants, constituting about half of the population, are mostly from Iran, India, Pakistan, Britain, and the United States. About three-fifths of the labour force is foreign-born.

Languages

Arabic is the official language of Bahrain. English is widely used, however, and is a compulsory second language at all schools. Persian is also common, although it is spoken mostly in the home. A number of other languages are spoken among expatriates in Bahrain, including Urdu, Hindi, and Tagalog.

Religion of Bahrain

The population is predominately Muslim and includes both the Sunni and the Shiʿi sects, with the latter in the majority. The ruling family and many of the wealthier and more influential Bahrainis are Sunni, and this difference has been an underlying cause of political and social tension. Christians constitute about half of the remaining one-fifth of the population, with the rest consisting of Jews, Hindus, and Bahāʾīs.

Settlement patterns

The majority of the population now dwells in towns, but in the north and northwest of the main island, where irrigation has long been carried out using artesian water, there are numerous small villages and isolated dwellings where horticulture is the way of life. This area has an aspect of great fertility, which contrasts starkly with the bare desert appearance of much of the country. Villages consist, for the most part, of substantial flat-roofed houses built of stone or concrete. Some of the temporary settlements of fishermen and the poor are still constructed of barasti (branches of the date palm). There is little permanent settlement either in the southern half of Bahrain Island or on the smaller islands.

More than one-third of the population lives in the two principal cities, Manama and Al-Muḥarraq. Manama, with its port of Mīnāʾ Salmān, is the largest city and contains the main government offices, the business and financial district, many large hotels, Western-style shops, and a traditional Arab souk (market). It has a distinctly modern appearance as compared with Al-Muḥarraq, which is densely settled and has many narrow, winding streets. Other major settlements are ʿAwālī, near the centre of Bahrain Island, built largely for expatriate employees of the Bahrain Petroleum Company B.S.C. (Bapco); Madīnat ʿĪsā (Isa Town), a community established by the government in 1968; the sizable settlements of Al-Rifāʿ al-Shamālī (North Rifāʿ), Al-Rifāʿ al-Sharqī (East Rifāʿ), and Al-Rifāʿ al-Gharbī (West Rifāʿ); and Madīnat Ḥamad, completed in 1984. 

Demographic trends

The population of Bahrain has been steadily growing, increasing almost 2 percent a year. Birth rates are below average, but immigration rates are the sixth highest in the world. About one-half of the population is foreign-born. Life expectancy is high, males living on average to about 77 and females to 81. The death rate is well below the world average, and the major causes of death are diseases of the circulatory or respiratory system and cancer. About one-fifth of the population is under the age of 15.

Agriculture and fishing

Less than 3 percent of Bahrain is arable, and agriculture contributes only a marginal proportion of the gross national product. The majority of Bahrain’s food is imported, but agricultural production meets some local needs, including a large portion of vegetables and dairy products. Tomatoes, dates, bananas, citrus fruits, mangoes, pomegranates, and alfalfa (lucerne) are among the main crops. Cattle breeding and poultry farming are also encouraged by the government, while camels and horses are bred for racing. The increasingly polluted waters of the gulf, mainly caused by spillages from Kuwaiti oil installations during the Persian Gulf War, have killed off economically valuable marine life (notably shrimp) that were important to the fishing industry. Fisheries have remained largely unexploited despite some government attempts to privatize and modernize the industry.

Resources and power

Bahrain’s oil production has always been small by Middle Eastern standards, and refining crude oil imported from Saudi Arabia has been of much greater importance since vast oil fields were discovered on the mainland; in 1998 Bapco began a major modernization project for its refinery. Bahrain’s only oil field, Al-Baḥrayn (also known as Awali), is rapidly depleting. Several oil companies, however, have been granted exploration rights by the government. The country’s offshore natural gas supplies are somewhat more substantial. Petroleum and natural gas resources and production are nationalized, but in the 1990s the government began encouraging foreign investment in the sector.

Manufacturing

The traditional industries of Bahrain were building dhows (lateen-rigged sailing vessels), fishing, pearling, and the manufacture of reed mats. These activities are now carried out on only a small scale.

Ship repair is handled at Mīnāʾ Salmān, near Manama, and at a large yard operated on Al-ʿAzl Island. Light industries include the production of building materials, furniture, soft drinks, plastics, and a wide range of consumer goods. The government has a significant financial stake in all these modern industries. In addition to the aluminum smelter operated by Alba, an aluminum rolling mill was opened in 1986 that manufactures such products as door and window frames.

Finance

The government has encouraged the growth of banking, insurance, and other financial services, and consequently Bahrain has become an important financial centre, notably of offshore banking. These activities have increasingly contributed to the country’s balance of payments. Bahrain has also been able to benefit from its long tradition as a commercial centre. The country’s central bank is the Bahrain Monetary Agency, which also issues the Bahraini dinar, the national currency. In addition to offshore banking units, there are local and foreign commercial banks, as well as investment banks. The Bahrain Stock Exchange opened in 1989.