Hambanthota District Profile

 

 Location and Area

Hambantota District is located in southern province of and the dry agro-ecological zone of Sri Lanka. Western parts of the District are located in the intermediate zone, and a small part of the more mountainous north-west is located in the wet zone. The District has an area of 2525 square km and a shoreline of 115 square km and inland water area covers approximately 113 square km. Hambantota District accounts for 4% of the country’s total land area.

Boundaries

North, North Western   :  Rathnapura District
North East :  Moneragala District
West  :  Matara District
South east  :  Ampara District
South :  Indian Ocean

 

Physical Features

With an altitude of 804 m Rammale Kanda is the highest point which situated in the Northern edge of the District. There are a number of major and minor rivers and streams in the area that either originate in the highlands adjacent to the Hambantota District. Kumbukkan Oya in the Northeast and Manik ganga and its tributaries in the west flow through the Yala National Park providing a source of water to the animals even during the driest months of the year. These rivers and streams show very high fluctuations in the runoff between wet and dry seasons.  For example, the Udawalawa river, Menik Ganga and Kumbbukkan Oya carries much water to the sea in the rainy season than it does during the dry season. Other major rivers are Uru bokka Oya, Uda Walawa River, kirindi Oya, Kirama Oya and Kuchigal-Ara which flows southwardly.

Reservoirs such as Muruthawela and Weeravila, Lunugamvehera, Yoda wewa, Tissa Wewa, Ridiyagama tank and Debarawewa located within the District. Some of the significant coastal physical features are the large sand dune which lies along the coastal belt from Bundala to Yala.

Katuwana & Walasmulla DS Division s in the District have small tea plantations which show the ecological diversity in the District. Some of the major geological formations in the District are blow hole which located in Tangalle Divisions and the hot springs near Madunagala in Sooriyawewa Division

The Lagoon

Mangrove vegetation is widespread in the estuaries of Manik Ganga and Kumbukkan Oya.  Some of the important lagoons in the Hambantota District are Rekawa, Lunama, Kalametiya, Bundala, Koholankala, Palatupana, and the lagoons within the Yala National park are Buthuwa, Udapothana, Mahirawa, Etiliu and Udagajaba.

Forest

Hambantota District provides refuges to large number of fauna & flora while three major National Parks in the country located in the District namely, Yala NP (97,880.0ha.), Bundala NP (6,216ha.), Lunugamvehera NP (23,498.8ha.). Additionally, there number of sanctuaries located within the District namely, Weeravila (4,164.2ha.), Ridiyagama (4,273.5ha.), Pallemalala (13.7ha.), Kalametiya (2,525.2ha.), Nimalawa (1,065.8ha.), Madunagala (995.2ha.).

Mineral Resources

The geology of the area is composed almost entirely of metamorphic rocks belonging to the Pre-Cambrian age and can be categorized into two main series: Vijayan series, and the highland series. Out of the 6 soil types identified, reddish brown earths and low humic gley soils are prominent in the area.  The area is situated in the lowest peneplain of the island, which stretches from Trincomalee to the Hambantota coastal plain

Climate and Rainfall

Situated in the dry semi-arid type of climate, the major rainy season is the northeast monsoon. The wet season that stretches from October to January is mainly a part of the Second Inter-Monsoon season. The annual rainfall in the District is between 750 and 1000 mm in the dry areas, between 1000 and 1500 mm in the intermediate parts and between 1500 and 2000 mm in the wet parts.  The mean temperature range is between 26 C in January to 30 C in April.  During the year the wind speed varies from 15 km/h during the northeast monsoon to 23 km/h during the southwest monsoons.

 

Annual Rainfall in Selected Areas and seasonal pattern

North East Monsoon (Nov-Feb)

mm

Inter Monsoon -01(Feb-Apr)

mm

South West Monsoon (May- Sep)

mm

Inter Monsoon – 02 (Oct-Nov)

mm

1961 -1990

102.83

70.87

64.22

169.85

2006

161.18

36.10

73.64

240.95

2007

103.2

78.10

60.36

72.9

Temperature: 1961–1990 Annual Average

27.2 șC

2006 -  Highest

28.9 șC

Lowest

26.6 șC

2007 -  Highest

29.0 șC

Lowest

26.8 șC

 Table - Temperature in Hambantota District in Celsius         

Month

Years

1961 - 1990

Average

                2006

     Mean               Mean

   Minimum         Highest

                  2007

    Mean               Mean

   Minimum         Highest

Average

27.2

24.6

30.9

24.3

30.9