Physical Profile

Geographical Location

Camaligan is the smallest municipality not only in Camarines Sur but in Bicol Region in terms of land area. It is situated along the Bicol River, landlocked, and is about two (2) kiloimeters from Naga City. The Municipality is located at geographical coordinates 13°36′ to °38′ North latitude and 123°08′ to 123°11′ East longitude. It is bounded on the south by the Municipality of Gainza; on the north, by the municipality of Canaman and on its eastern side by Naga City. Camaligan has a total land area of 468.1370 hectares or 4,681,370 square meters comprising of thirteen (13) Barangays based from the certification issued in 2017 by the Department of Environment and Natural Resources. It comprises 0.09% of the Province of Camarines Sur’s land area of 5,502 square kilometer. It is 5.55% of that land area in comparison to Naga City. About one – third (1/3) of that is its neighboring Municipality of Gainza and a tenth (1/10) of the Municipality of Canaman.

The Thirteen Barangays of Camaligan

Topography and Slope Suitability

The Municipality has only one type of topographic relief. A flat lowland with a slope of 0-3% and a floodplain where additional water from Naga River converges at the Bicol River portion of the Municipality.

Agriculture and built-up areas for settlement, social serivces and various economic activities are thus its major land uses. Agricultural land which comprises 89% of the total land area us swampy during the rainy season. Thus limits its capacity for rice or vegetable production. Settlement area comprises the 11% of the Municipality’s total land area. These are now densely populated due to its proximity to Naga City.

The Bicol River that traverses the Municipality serves for small fishing, irrigation of farmlands as well as transport system of barangays at the other side of the River particularly San Francisco and Tarosanan. The Rver itself serves as access of the Municipality to the vast fishing ground of San Miguel Bay.

Climate and Rainfall

The Municipality belongs to the second distinct type of climate which is characterized by the absence of dry season with a very pronounced rainfall. The amount of precipitation in the area is similar to the province’s average which is highest during the months of October, November and December at 301.22mm, 284.3mm and 228.3mm, respectively. The average monthly precipitation recorded from January to December of the years from 1976 to 2013.

The smallest volume of rainfall recorded was in March 1979 while the highest rainfall amount was in May 2011. The same year in 2011 where the total annual volume of rainfall recorded was highesr at 3,617 mm while the lowest recorded was in 1977 with a total volume of 1,556 mm. The trend of precipitation shows that the rainy season starts in May and peaks from July to October and recedes sharply from November to January. The lowest of the precipitation rate is in April.

Given the cyclic nature of monthly rainfall distribution, the amount of rainfall and water level at the Camaligan Station of PAGASA were analyzed. The latest year with complete record is in year 2010. Maximum rainfall amount and water depth is recorded in November at 125mm and water level of 3.58m above mean sea kevek (AMSL). This barely exceeded the maximum level of 3.5m AMSL at the Camaligan Rainfall and Water Level Gauging Station of PAGASA. Maximum rainfall usually occurs from July to September. The city’s annual rainfall is 2,546 mm with a peak of 459 mm in August and low of 27 mm in February.

The most common air currents in the area are in the northern winds or “Aihan” which prevails from September to January, strong monsoon or “Habagat” in August, and the Northeast and Southeast monsoon during the rest of the months. As seen in the geographical location of teh municipality, it is prone to destructive typhoons that occur anytime of the year particularly when the prevailing wind is from the north to the northeast or northwest. The month of May is considered the hottest month in the area with an approximate temperature of 33.6°C, while the coldest month is January with a temperature of 20.8°C.

Philippine Standard Time:
February 2023