Monte Negro, Brazil

Rondônia · Brazil

Monte Negro is a small city in Rondônia, Brazil with a population of 11,548. Elevation: 472 ft (144 m). Average temperature: 78°F (25°C).

Population source: Wikidata (dated census and official estimates), GeoNames. Climate: WorldClim 2.1 normals (1970-2000), NASA POWER. Updated August 2026

11,548 Population
472 ft Elevation 144 meters
78°F Avg Temperature 25°C
79.8 in Annual Rain
America / Porto Velho Timezone

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About Monte Negro

Monte Negro

Monte Negro is a municipality located in the Brazilian state of Rondônia. Its population was 16,007 (2020) and its area is 1,931 km2.

People

Population11,548

Climate

Avg Temp78°F (25°C)
Rain79.8 in/yr
Elevation472 ft (144 m)
Population11,548
Elevation472 ft (144 m)
Coordinates-10.2944°, -63.3253°
TimezoneAmerica/Porto_Velho
Country🇧🇷 Brazil
State / ProvinceRondônia
Average Temperature78°F (25°C)
January Average78°F (25°C)
July Average76°F (24°C)
Annual Precipitation79.8 inches (2,027 mm)
Annual Snowfall0.0 inches (0 cm)

About Monte Negro

Monte Negro is a small city in Brazil (Rondônia) with a population of 11,548. The city sits at an elevation of 472 feet (144 meters) above sea level. The average annual temperature is 78°F (25°C). Temperatures range from 78°F in January to 76°F in July. Annual precipitation averages 79.8 inches. The timezone is America/Porto_Velho.

Climate in Monte Negro

Monte Negro has an average annual temperature of 26.8°C (80°F). The hottest month is Sep (30.4°C), the coldest is May (24.9°C). Average annual precipitation is 1377 mm.

Month Avg °C / °F Min / Max °C Rain (mm)
Jan 25.5°C / 78°F 21.1° / 31.4° 193.0
Feb 25.4°C / 78°F 21.2° / 30.8° 222.0
Mar 25.3°C / 78°F 21.4° / 31° 235.7
Apr 25.2°C / 77°F 20.6° / 29.7° 140.2
May 24.9°C / 77°F 17.2° / 30.4° 70.9
Jun 25.3°C / 78°F 17.3° / 32.3° 21.1
Jul 27.2°C / 81°F 17.8° / 36.7° 3.3
Aug 28.9°C / 84°F 17.6° / 38.5° 20.4
Sep 30.4°C / 87°F 22.2° / 39.9° 57.2
Oct 29.5°C / 85°F 22.1° / 39° 94.3
Nov 27.7°C / 82°F 20.9° / 37.2° 142.9
Dec 26.7°C / 80°F 21.7° / 34.1° 176.3
Monte Negro has a warm climate with an average annual temperature of 78°F (25°C). Winters average 78°F in January while summers reach 76°F in July / relatively mild seasonal variation. Annual precipitation totals 79.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 472 feet.

Temperature

78°F Jan (25°C) 76°F Jul (24°C)
Annual Average77.5°F
44% above Brazil avg
January Average78°F (25°C)
July Average76°F (24°C)

Geography

Elevation472 ft (144 m)
Coordinates10.2944°S, 63.3253°W
TimezoneAmerica/Porto_Velho

Precipitation & Snow

Annual Rainfall 79.8"
110% above Brazil avg
Snowfall 0.0"
Wettest Month (Jan) 13.19"
Driest Month (Jul) 0.39"

Air Quality

Earthquake History

1 earthquake (M2.5+) within 150 km since 1990. Strongest: M4.6. Most recent: M4.6 on Nov 25, 2012.

Nov 25, 2012 58 km N of Ariquemes, Brazil M4.6 104 km
Source: USGS (M2.5+, 1990-2025)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 78°F (25°C) 13.2 in Wettest
February 78°F (25°C) 11.5 in
March 78°F (26°C) 10.9 in
April 78°F (25°C) 7.4 in
May 77°F (25°C) 4.0 in
June 76°F (24°C) 0.7 in Coldest
July 76°F (24°C) 0.4 in Driest
August 78°F (26°C) 1.1 in
September 78°F (26°C) 4.1 in
October 79°F (26°C) 6.7 in Warmest
November 78°F (26°C) 9.0 in
December 78°F (25°C) 10.8 in

Monte Negro has a seasonal temperature swing of 3°F / from 76°F in June to 79°F in October. Total annual precipitation is 79.8 inches, with January being the wettest month (13.2") and July the driest (0.4").

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Schools in Monte Negro

4 public schools (OpenStreetMap data).

School Level Enrollment Teachers Student/Teacher
Escola Visão Educacional Ltda - - - -
EMEF Maria de Abreu Bianco - - - -
EEEFM Aurélio Buarque de Holanda Ferreira - - - -
EEEFM Mato Grosso - - - -
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Airports Near Monte Negro

6 airports within the area.

AirportIATAType
ACR/NBF Mineração SA  Airport-Small Airport
Aeroclube de Buritis Airport-Small Airport
Ariquemes AirportAQMSmall Airport
Fazenda Bom Futuro Airport-Small Airport
Fazenda Marplen Airport-Small Airport
Nova Vida Airport-Small Airport

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Waterfalls
2
Natural waterfalls documented by USGS and OpenStreetMap contributors
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Waterfalls Near Monte Negro

2 waterfalls from OpenStreetMap and USGS geographic data found near Monte Negro.

Name Description
Cachoeira do Rafael
Cachoeira Jaturana

Quick Facts

Timezone
America/Porto_Velho

🇧🇷 About Brazil

Capital Brasilia
Population 209,469,333
Area 8,511,965 km²
GDP (USD) $2,191,131,869,706
GDP per capita $10,378
HDI 0.760
Life expectancy 75.9 years
Internet users 84.2%
Urban population 87.6%
Currency BRL (Real)
Languages Portuguese
Calling code +55
TLD .br
Driving side right

Public Holidays in Brazil

15 public holidays this year

Date Holiday Local Name
Jan 1 New Year's Day Confraternização Universal
Feb 16 Carnival Carnaval
Feb 17 Carnival Carnaval
Apr 3 Good Friday Sexta-feira Santa
Apr 5 Easter Sunday Domingo de Páscoa
Apr 21 Tiradentes Dia de Tiradentes
May 1 Labour Day Dia do Trabalhador
Jun 4 Corpus Christi Corpus Christi
Jul 9 Constitutionalist Revolution of 1932 Revolução Constitucionalista de 1932
Sep 7 Independence Day Dia da Independência
Oct 12 Our Lady of Aparecida Nossa Senhora Aparecida
Nov 2 All Souls' Day Dia de Finados
Nov 15 Republic Proclamation Day Proclamação da República
Nov 20 Black Awareness Day Dia da Consciência Negra
Dec 25 Christmas Day Natal

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Frequently Asked Questions About Monte Negro

What is the population of Monte Negro?

Monte Negro has a population of 11,548 residents and is located in Brazil..

What is the weather like in Monte Negro?

Monte Negro has a warm climate with an average annual temperature of 78°F (25°C). Winter temperatures average 78°F in January, while summers reach an average of 76°F in July. Annual rainfall totals 79.8 inches.

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