According to the
Brazilian Institute of Geography and Statistics, the municipality's area is , with constituting the
urban area and the remaining forming the
rural area, making it the third largest in Santa Catarina, surpassed only by
Lages and
São Joaquim. It is located at 27°24′07″
latitude south and 51°13′30″
longitude west, approximately 370 kilometers west of the
capital of Santa Catarina. It borders
Erval Velho,
Ibiam, and
Monte Carlo to the north;
Barracão (
Rio Grande do Sul),
Celso Ramos, and
Anita Garibaldi to the south;
Vargem,
Brunópolis, and
Abdon Batista to the east; and
Capinzal,
Zortéa,
Ouro,
Lacerdópolis, and
Herval d'Oeste to the west.
Geomorphology and hydrography The city's terrain is predominantly gently undulating, deep, and well-drained, offering favorable physical conditions for root development. It is minimally susceptible to
erosion and supports the use of agricultural machinery and implements. In some areas of the municipal territory, there are stronger undulations, which are more prone to erosion and pose greater challenges to agricultural mechanization, particularly where the soil type is
Cambisol, containing stones. Although much of the municipality's area has terrain suitable for agriculture, Campos Novos' soils are acidic, often contaminated with exchangeable aluminum, and have limited nutrient reserves. However, when properly managed, they become suitable for both annual crops and less intensive uses such as fruit cultivation, pasture, and reforestation. The city is part of the Lages Plateau hydrographic region and the
Canoas River hydrographic basin, one of the main basins in Santa Catarina. The Canoas River flows through Campos Novos and eleven other municipalities, and upon merging with the
Pelotas River, it forms the
Uruguay River. The Campos Novos Hydroelectric Plant, operational since 2007, generates a quarter of Santa Catarina's energy consumption.
Climate According to the
IBGE, Campos Novos' climate is classified as
humid subtropical (type
Cfa according to the
Köppen system), characterized by high
relative humidity (RH) and an average annual
temperature of around , with mild summers and cold winters. With over of annual
insolation, the area receives approximately of rainfall per year, evenly distributed throughout the year, without a distinct
dry season. In recent years, however, hot and dry days during
Indian summers have become increasingly frequent, often exceeding , particularly in summer. During these dry periods,
wildfires in rural areas are common, contributing to
deforestation and the release of pollutants into the
atmosphere, further degrading
air quality. These fires are often intentional, used to prepare land for cultivation, but they are recurrently prohibited.
Frosts are not uncommon, occurring on average 12 to 22 times per year. and, with significant intensity, on July 22, 2013.{{Weather box | width = auto | collapsed = yes | metric first = yes | single line = yes | location = Campos Novos (1991–2020 normals, extremes 1976–2005) | Jan high C = 26.6 | Feb high C = 26.4 | Mar high C = 25.5 | Apr high C = 23.1 | May high C = 19.2 | Jun high C = 18.1 | Jul high C = 18.1 | Aug high C = 20.4 | Sep high C = 20.7 | Oct high C = 22.9 | Nov high C = 25.0 | Dec high C = 26.5 | year high C = 22.7 | Jan mean C = 20.8 | Feb mean C = 20.6 | Mar mean C = 19.4 | Apr mean C = 17.1 | May mean C = 13.6 | Jun mean C = 12.5 | Jul mean C = 12.1 | Aug mean C = 13.8 | Sep mean C = 14.6 | Oct mean C = 17.0 | Nov mean C = 18.7 | Dec mean C = 20.4 | year mean C = 16.7 | Jan low C = 16.5 | Feb low C = 16.6 | Mar low C = 15.4 | Apr low C = 13.0 | May low C = 9.8 | Jun low C = 8.7 | Jul low C = 8.1 | Aug low C = 9.2 | Sep low C = 10.3 | Oct low C = 12.7 | Nov low C = 13.9 | Dec low C = 15.8 | year low C = 12.5 | precipitation colour = green | Jan precipitation mm = 211.0 | Feb precipitation mm = 177.5 | Mar precipitation mm = 156.9 | Apr precipitation mm = 164.1 | May precipitation mm = 166.5 | Jun precipitation mm = 167.9 | Jul precipitation mm = 172.4 | Aug precipitation mm = 141.1 | Sep precipitation mm = 208.9 | Oct precipitation mm = 250.9 | Nov precipitation mm = 148.5 | Dec precipitation mm = 180.5 | year precipitation mm = 2146.2 | unit precipitation days = 1.0 mm | Jan humidity = 76.0 | Feb humidity = 78.3 | Mar humidity = 77.9 | Apr humidity = 77.7 | May humidity = 80.5 | Jun humidity = 80.9 | Jul humidity = 77.4 | Aug humidity = 72.6 | Sep humidity = 75.6 | Oct humidity = 76.3 | Nov humidity = 70.7 | Dec humidity = 72.0 | year humidity = 76.3 | Jan dew point C = 16.9 | Feb dew point C = 17.2 | Mar dew point C = 16.1 | Apr dew point C = 13.9 | May dew point C = 10.9 | Jun dew point C = 9.8 | Jul dew point C = 8.8 | Aug dew point C = 9.5 | Sep dew point C = 10.8 | Oct dew point C = 13.2 | Nov dew point C = 13.7 | Dec dew point C = 15.6 | year dew point C = 13.0 | Jan sun = 215.3 | Feb sun = 185.9 | Mar sun = 204.8 | Apr sun = 188.2 | May sun = 167.1 | Jun sun = 152.5 | Jul sun = 177.0 | Aug sun = 192.0 | Sep sun = 168.2 | Oct sun = 175.2 | Nov sun = 213.0 | Dec sun = 218.5 | year sun = 2257.7 | source 1 =
NOAAEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) To combat deforestation and the destruction of green areas, the municipal government has implemented programs such as Permanent Preservation Areas, which are vegetated strips between the hydroelectric plant's reservoir and surrounding properties, ranging from 30 to 100 meters wide. Deforested areas used for the plant's construction are being restored and converted into
riparian forest. Additionally, the Rio Canoas State Park, established on May 27, 2004, spans and is dedicated to preserving the native forest near the hydroelectric plant. Some remnants of the
Araucaria moist forests remain today, The municipal area has recorded 44 species of orchids and bromeliads. Regarding fauna, over 80 bird species have been recorded in the municipal area, Regarding
herpetofauna, recorded species include the Amazon lava lizard (
Tropidurus torquatus), striped worm lizard (
Ophiodes striatus), Argentine giant tegu (
Tupinambis merianae), worm lizard (
Amphisbaena sp.), Wagler's snake (
Waglerophis merremii), Neuwied's false fer-de-lance (
Xenodon neuwiedii), coral snake (
Micrurus altirostris), military ground snake (
Liophis miliaris), jararaca (
Bothrops jararaca), and Brazilian keelback (
Helicops infrataeniatus). == Demography ==