The city of Santa Ana is located on a
plateau about 665 meters above sea level. The city has year-round warm climate with an average temperature of around . The main river is the Guajoyo river which is a major tributary of the much larger
Lempa River. There is a major Hydroelectric Power station at the Guajoyo river that provides electricity to most of the western sector of the country. The city is situated among a number of green hills, including Tecana Hill and the Hills of Santa Lucía. In the southern part of the municipality is the
Ilamatepec volcano, the highest volcano in the country, which had a moderate eruption in 2005 that killed two people. Close to it is another famous volcano, Izalco, known to sailors throughout the mid-19th century and early 20th century as "The lighthouse of the Pacific" due to its constant eruptions.
Surrounding mountains The highest elevation in the town is the Santa Ana volcano (which measures 2365 meters).
Physio-graphic regions The relief of the municipality may be divided into three physiographic regions, which are: The Apaneca Range, which is located in the southern part of town and home to the Santa Ana volcano (which is the highest volcano in the country), the Izalco volcano (which the youngest volcano in the country having originated in 1770), and the Cerro Verde, located in the Natural Park of Cerro Verde (which was re-opened after a closure in 2001, due to earthquakes that occurred earlier that year). Apaneca from the mountains to the center of town lies a plain or plain, which lies on the plateau where the city is located. North of the plateau is the mountain range-
Comecayo Mita, in which small rise orographic configurations including the Tecan, Pinalito, Pinalón, Santa Lucia and Camones hills.
Hydrology Guajoyo River is one of the major rivers in the municipality of Santa Ana The city and the greater part thereof is located in the Lempa River basin region, while the remaining parts of the municipality are in the basin region of Coatepeque. Within the Lempa River basin region, the city and Most of the municipality is located in the upper Lempa River. The city is surrounded both above aquifers located in the basement, of which most are moderate vulnerability.
Surface waters Within the streams that flow through the territory of the municipality including the City, the main rivers are: • Lempa River, which forms the border with the municipality of Nueva Concepcion • Guajoyo River (where a hydroelectric plant is located) • Suquiapa River, which forms the confluence of the Apanchacal and Zarco rivers bordering the town of Coatepeque. The southern part of the city is connected with Lake Coatepeque, which has become one of the main attractions of the entire Department of Santa Ana. In addition, another 15 rivers and 52 minor streams flow through the municipality of Santa Ana. The city is criss-crossed by the El Molino, Apanchacal, and Apanteos rivers.
Climate The city and the entire municipality of Santa Ana are located in the tropics and have a
tropical savanna climate (according to the
Köppen climate classification). The city experiences two distinct seasons, which are: the dry season (November to May) and rainy season (May to November). The municipality of Santa Ana has a mean annual temperature of with a temperature around and minimum and maximum. Although at times the maximum temperatures often exceed , since it is a city with a very hot climate. It also has an annual relative humidity between 70% and 75%. The city is dominated by winds from the southwest and west, both during the dry season and during the rainy season, these winds have an annual rate of 7.8 km/h.24 In addition, any municipality, including the city, is affected by the hurricane season in the Atlantic (June–November). In which, the continuous tropical storms and hurricanes increase the flow of rivers, damaging some areas with flooding. {{Weather box {{cite web ==History==