Negombo is about 2 meters above sea level, and Negombo’s geography is a mix of land and water. The Dutch canal flows in the heart of the city. The lagoon is one of the most scenic landmarks of Negombo. There are over 190 species of wildlife and plenty of birds in its mangroves. The northern border of the city is formed by the Ma Oya river which meets the Indian Ocean.
Negombo features a tropical rainforest climate under the Köppen climate classification. The city receives rainfall mainly from the Southwestern monsoons from May to August and October to January. During the remaining months there is a little precipitation due to Convective rains. The average annual precipitation is about 2400 millimetres. The average temperature varies 24 to 30 degrees Celsius, and there are high humidity levels from February to April.
Negombo Lagoon is large semi-enclosed coastal water body with plenty of natural resources. The lagoon is fed by number of small rivers and the Dutch canal. It is linked to the Indian Ocean by a narrow channel to the north, near Negombo city. The lagoon and the marsh land area also support local agriculture and forestry. It has extensive mangrove swamps and attracts a wide variety of water birds. The lagoon supports so many distinct species of flora, fauna and as well as another species of birds and variety of animals. Negombo Lagoon is a major local and tourist attraction primarily for sightseeing and boating tours.
The fishermen who are based at the Negombo lagoon live in abject poverty in shanty thatch palm villages along the water’s edge. They rely mainly on their traditional knowledge of the seasons for their livelihood, using outrigger canoes carved out of tree trunks and nylon nets to bring in modest catches from September through April. Their boats are made in two forms – oruvas (a type of sailing canoe) and paruvas (a large, man-powered catamaran fitted with kurlon dividers). The men are regularly forced to head out to the ocean to fish, often losing money in the chartering process. In recent years, the villagers have supplemented the income earned from fishing by collecting ‘toddy’, or palm sap, which is used to brew arrack