Tirunelveli District - Geography and Climate

Geography and Climate

The district is located in the southern part of Tamil Nadu. It is surrounded by Virudhunagar District in the north, the Western Ghats in the west, Kanyakumari District in the south and Thoothukudi District in the east. The district covers an area of 6,823 km2. It lies between 8°05’ and 9°30’ north latitude and 77°05’ and 78°25’ east longitude. The district has diverse geographical and physical features. It has mountains (a stretch of the Western Ghats and lowland plains. It has a perennial river (the Tamirabarani) and small seasonal rivers. The district has many scenic waterfalls. Its physical features include sandy soil and fertile alluvium, a variety of flora, fauna and protected wildlife. The district also has inland and mountainous forests.

Tirunelveli has rainfall in all seasons (953.1 mm in 2005-2006). The district benefits from both the northeast and southwest monsoons. Most precipitation came from the northeast monsoon (548.7 mm) followed by the southwest monsoon (147.8 mm) and summer rains (184.2 mm). The district is irrigated by several rivers originating in the Western Ghats such as the Pachaiyar River, which flows into the Tambaraparani River. The Tambaraparani and Manimuthar Rivers have many dams, with reservoirs providing water for irrigation and power generation. The Tamiraparani River provides consistent irrigation to a large agricultural area. The Chittar River also originates in this district. The Courtallam and Manimuthar waterfalls are the two major falls in the district.

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