Uppu Aru Lagoon

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Uppu Aru Lagoon
Location Jaffna District, Sri Lanka
Coordinates 9°41′N 80°05′E / 9.683°N 80.083°E / 9.683; 80.083Coordinates: 9°41′N 80°05′E / 9.683°N 80.083°E / 9.683; 80.083
Type Lagoon
Primary outflows Jaffna Lagoon
Surface area 30 square kilometers (12 sq mi)
Max. depth 3 meters (9.8 ft)
Surface elevation Sea level

Uppu Aru lagoon is a lagoon in Jaffna District, northern Sri Lanka. The lagoon separates the Valikamam region from the Thenmarachchi region.

The lagoon is linked to Jaffna Lagoon by a short channel to the south. The lagoon's water is brackish.

The lagoon is surrounded by a densely populated region containing palmyra palms, coconut plantations, grassland, rice paddies and extensive vegetable gardens.

The lagoon has extensive mudflats and salt marshes. It is surrounded by mangroves, particularly Avicennia. The lagoon attracts a wide variety of water birds including American flamingoes, ducks, garganey, black-tailed godwit and other shorebirds.


  • S.W. Kotagama, Leonard Pinto and Jayampathi L. Samarakoon. "Sri Lanka" (PDF). Wetlands International. Retrieved 23 May 2009.