morphological forms most common in the coast are the dry ravine that suddenly become copious when there are heavy rains, forming tropical dry forests all over. Other features are half-moon shaped dunes, the marine terraces such as those of Máncora, Talara and Lobitos. Valleys have been formed by fluvial terraces of the Chira River and Piura River. To the east, valleys are more or less deep and have been eroded by rivers forming equatorial tropical-dry-forests. The major peak surpasses 3000 m. The Paso de Porculla, in the southwest of the territory is only 2,138 meters high and is the lowest pass of the Peruvian Andes. The rivers crossing its territory belong both to the Pacific watershed and to the Amazon Basin. The Chira River is the most important and flows into the Pacific Ocean. The Piura River also flows into the Pacific Ocean although the flow varies greatly with the changing seasons and during severe droughts will dry up. Climate The climate is subtropical and tropical savanna in the center and north coast, Semi-arid in the southern coast near Lambayeque Region. Piura has a tropical dry or tropical savanna climate monsoon weather that averages 26 °C (79 °F) throughout the whole year. Pleasant warm winters (June to October) that average between 25 °C and 28 °C (77 °F and 82 °F) during the daytime and lows around 16 °C and 18 °C (61 °F) during the night. In 2013 and 2016, Chulucanas and the Lancones District, two places in the Department of Piura, recorded a temperature of . This is the highest temperature to have ever been recorded in Peru. Piura is covered by deserts, tropical valleys, dry equatorial forests, tropical montane climates as you reach between 1000 and 1500 meters, and a humid subtropical sierra climate if you reach over 2,000 meters. The Páramo climate is found in the higher regions of the Sierra. Rain is scarce from May to November: it rains only from December to April at discontinuous rates due to the influence of the El Niño Current, but every so often, when the El Niño phenomenon arrives, rain is copious and makes the dry ravines become alive, giving rise not only to the impressive forests but to many floods and great landslides. El Niño occurs when ocean waters reach 27 °C (80 °F). When ocean water temperatures elevate 1 or 1.5 degrees Celsius higher than 26