Climatic conditions are markedly different on the Atlantic and Pacific sides of western Panama, especially in the amount and seasonal distribution of rainfall. On the Caribbean slopes of the Tabasará Mountains, which face the rain-bearing trade winds, average rainfall is approximately twice as heavy as on the leeward Pacific slopes. The Caribbean coast receives 60–140 inches (1,500–3,550 mm) per year, while the more populated Pacific region receives 45–90 inches (1,140–2,290 mm). Furthermore, on the Caribbean side rain falls almost throughout the year, while on the Pacific side there is more seasonal variation—in Chiriquí province, for example, there is a pronounced dry season lasting from January to April, and March is usually the driest month. In accordance with this rainfall pattern, tropical rainforests are typical on Caribbean slopes, whereas savannas (tropical grasslands) are more common southward in the seasonally dry areas between the Tabasará Mountains and the Pacific shoreline. Toward the Colombian border both sides of the isthmus have year-round rainfall.

Because of Panama’s tropical location, the mean temperature of the coldest month seldom drops below 78 °F (26 °C) on either coast. The Panamanian mountain slopes create three climatic zones: a low, hot zone, lying at elevations below 2,300 feet (700 metres), which makes up nearly nine-tenths of the country’s territory; a temperate zone, at elevations ranging from 2,300 to 4,900 feet (700 to 1,500 metres), which accounts for most of the rest of the land; and a tiny cold zone, lying above 4,900 feet. Each zone has its characteristic plant growth and crops; cacao and bananas are produced mainly in the hot lowlands, whereas coffee is grown in the temperate zone.

Plant and animal life

In spite of its relatively small area, Panama has a great variety of landscapes and habitats: tropical rainforests, savannas, cool montane forests, tidal lands covered by stilted mangrove trees, coral reefs, and beaches. Because of its ancient role as a land bridge over which species have migrated between the continents, the isthmus is home to a rich intermixture of plant and animal life. As a result of this interchange, Panama’s wildlife includes such mammals as sloths, anteaters, and armadillos—which derive from South America—as well as jaguars, tapirs, and deer—which came originally from North America. Also among Panama’s rich fauna are several species of giant sea turtle, which lay their eggs on the beaches. Few comparable areas have a larger number of bird species, both resident and migratory.

National parks and reserves occupy about one-sixth of the nation’s land area. Panama’s parks are known for their lush tropical rainforests and abundance of wildlife. The Darién region of eastern Panama is the site of a national park created in 1980 and added to UNESCO’s World Heritage List the following year. La Amistad National Park was established in 1988 alongside Costa Rica’s protected Talamanca Range–La Amistad region; the two zones were designated a transboundary World Heritage site in 1990. Among other national parks are Chagres (1984), Portobelo (1976), and Coiba (1991).

Ethnic groups

In the 16th century, when the Spaniards came to the isthmus, it was occupied by Kuna (Cuna), Guaymí, Chocó, and other American Indian groups. The population soon included persons of mixed Spanish and Indian ancestry, termed mestizos. During colonial times people from Africa were brought to the isthmus as slaves, and still other mixed ethnic types developed as the Africans were incorporated into the society. During the 19th century, with the construction of the Panama City–Colón railroad, new groups arrived—North Americans (primarily from the United States), French, and Chinese. Large numbers of West Indians (mainly from British Barbados and Jamaica, as well as Martinique) came to Panama as labourers during the construction of the canal, and additional U.S. nationals, Spaniards, Italians, and Greeks also arrived.

Although they are but a small fraction of the total population, Indians are found scattered over a considerable area, often in rainforests on rough terrain. The most numerous of the Indian groups are the Guaymí, who live in the western provinces of Chiriquí, Bocas del Toro, and Veraguas. Next in numbers are the Kuna, who are found primarily in the San Blas Archipelago and on the coast nearby. The Chocó live mainly in the province of Darién. Although most are engaged largely in subsistence agriculture, fishing, and hunting, some Kuna are traders, sailors, or mechanics or work in other occupations. Many Guaymí work on the banana plantations of western Panama.

Mestizos are the largest population group in Panama. They predominate in the savannas to the west of the canal and in the central provinces of Panamá and Colón, where they have intermarried with people of West Indian and African ancestry.

People of African descent are settled throughout much of Panama—for example, in the hot lowlands of the Chagres River basin, in the eastern province of Darién, and in the Caribbean lowlands. Peoples from the British West Indies are more recent arrivals and make up only a small minority. They live primarily in Panama City and in Bocas del Toro province.

The United States has influenced both the economy and the culture of Panama. U.S. citizens live primarily in the canal area and in Panama City. Other significant minorities in Panama are Chinese, East Indians, and Middle Easterners, all of whom play an important role in commerce and industry and who participate in the country’s political and professional life. There is a sizable Jewish community, founded when Spanish and Portuguese Jews fleeing the Inquisition began to settle in Panama. They initially were forced to practice their religion in secret. The population was increased by Jewish immigrants from the West Indies (notably from Curaçao) in the mid-19th century. Panama had the Western Hemisphere’s first Jewish president, Eric Arturo Delvalle (del Valle), who served in the 1980s.

Language

Spanish is the official language of Panama and is spoken by the vast majority of the people. Although fewer than one-tenth of the people speak American Indian languages, all of Panama’s Indian groups preserve their native tongues, and many Indians also speak Spanish. Most Panamanians from West Indian backgrounds speak English, which is also commonly taught in schools.

Religion

Roman Catholicism is the religion of about three-fourths of Panamanians. The number of Protestants grew rapidly in the late 20th century, especially among Pentecostal churches. There is also a long-standing Protestant tradition within the African population of Bocas del Toro province and among Indian groups and West Indian immigrants. Three synagogues serve the Jewish population. Some Panamanians practice the syncretic religion Santería, a combination of Roman Catholic and traditional West African beliefs and customs. Panama’s constitution guarantees freedom of worship.