Ou Chum, Cambodia

Ratanakiri · Cambodia

Ou Chum is a small city in Ratanakiri, Cambodia with a population of 17,000. Elevation: 830 ft (253 m). Average temperature: 79°F (26°C).

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

17,000 Population 55/sq mi density
830 ft Elevation 253 meters
79°F Avg Temperature 26°C
94.8 in Annual Rain
Asia / Phnom Penh Timezone

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About Ou Chum

Ou Chum is a district located in Ratanakiri Province, in north-east Cambodia. In 1998 it had a population of 11,863. It contains 37 villages, which are located in seven communes.

People

Population17,000
Density55/mi²

Climate

Avg Temp79°F (26°C)
Rain94.8 in/yr
Elevation830 ft (253 m)
Population17,000
Population Density55 / sq mi
Elevation830 ft (253 m)
Coordinates13.7978°, 106.9938°
TimezoneAsia/Phnom_Penh
Country🇰🇭 Cambodia
State / ProvinceRatanakiri
Average Temperature79°F (26°C)
January Average74°F (24°C)
July Average82°F (28°C)
Annual Precipitation94.8 inches (2,409 mm)
Annual Snowfall0.0 inches (0 cm)

About Ou Chum

Ou Chum is a small city in Cambodia (Ratanakiri) with a population of 17,000. The city sits at an elevation of 830 feet (253 meters) above sea level. The average annual temperature is 79°F (26°C). Temperatures range from 74°F in January to 82°F in July. Annual precipitation averages 94.8 inches. The timezone is Asia/Phnom_Penh.

Climate in Ou Chum

Ou Chum has an average annual temperature of 25.7°C (78°F). The hottest month is Apr (29°C), the coldest is Jan (22.5°C). Average annual precipitation is 2299 mm.

Month Avg °C / °F Min / Max °C Rain (mm)
Jan 22.5°C / 73°F 14.4° / 29.3° 12.8
Feb 24.4°C / 76°F 15.6° / 32.9° 6.5
Mar 27.5°C / 82°F 19° / 36.8° 24.3
Apr 29°C / 84°F 21.3° / 38.8° 58.9
May 28.1°C / 83°F 22.8° / 37.5° 243.9
Jun 26.6°C / 80°F 23° / 32.4° 267.9
Jul 26°C / 79°F 22.3° / 30.9° 439.0
Aug 26°C / 79°F 22.3° / 30.9° 443.5
Sep 25.8°C / 78°F 22.3° / 31.1° 419.7
Oct 25.4°C / 78°F 20.4° / 30.5° 286.4
Nov 24.7°C / 77°F 17.7° / 30.3° 68.7
Dec 22.8°C / 73°F 14.3° / 29.3° 27.8
Ou Chum has a warm climate with an average annual temperature of 79°F (26°C). Winters average 74°F in January while summers reach 82°F in July / relatively mild seasonal variation. Annual precipitation totals 94.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 830 feet.

Temperature

74°F Jan (24°C) 82°F Jul (28°C)
Annual Average79.2°F
47% above Cambodia avg
January Average74°F (24°C)
July Average82°F (28°C)

Geography

Elevation830 ft (253 m)
Area309.4 sq mi (801.2 km²)
Population Density55/sq mi
Coordinates13.7978°N, 106.9938°E
TimezoneAsia/Phnom_Penh

Precipitation & Snow

Annual Rainfall 94.8"
150% above Cambodia avg
Snowfall 0.0"
Wettest Month (Jul) 21.22"
Driest Month (Jan) 0.08"

Air Quality

Hurricane History

16 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 3. Most recent: Kalmaegi (2025).

Year Name Category Closest
2025 Kalmaegi Category 3 229 km
2022 Noru Category 2 249 km
2020 Molave Category 1 233 km
2017 Damrey Category 2 218 km
2013 Nari Category 1 258 km
2009 Ketsana Category 2 233 km
2006 Xangsane Category 2 201 km
2004 Chanthu Category 1 185 km
2001 Lingling Category 2 196 km
1997 Fritz Category 1 248 km
1995 Zack Category 3 191 km
1995 Yvette Category 1 296 km
1993 Kyle Category 2 118 km
1993 Lola Category 2 219 km
1989 Cecil Category 1 284 km
1984 Agnes Category 2 162 km
Source: NOAA IBTrACS (Cat 1+, 1980-2026)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 74°F (24°C) 0.1 in Coldest, Driest
February 76°F (25°C) 0.2 in
March 79°F (26°C) 0.8 in
April 82°F (28°C) 1.5 in
May 83°F (28°C) 10.2 in Warmest
June 82°F (28°C) 14.2 in
July 82°F (28°C) 21.2 in Wettest
August 82°F (28°C) 19.6 in
September 80°F (27°C) 17.2 in
October 78°F (26°C) 7.6 in
November 77°F (25°C) 1.8 in
December 74°F (24°C) 0.5 in

Ou Chum has a seasonal temperature swing of 8°F / from 74°F in January to 83°F in May. Total annual precipitation is 94.9 inches, with July being the wettest month (21.2") and January the driest (0.1").

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Museums in Ou Chum

NameTypeAddressPhoneAnnual Revenue
Cultural Center

Farmers Markets in Ou Chum

NameAddressSeasonHoursOrganicWebsite
Phsar

Stadiums & Teams in Ou Chum

TeamLeagueDivision

Airports Near Ou Chum

1 airports within the area.

AirportIATAType
Ratanakiri AirportRBEMedium Airport

Quick Facts

Timezone
Asia/Phnom_Penh

🇰🇭 About Cambodia

Capital Phnom Penh
Population 16,249,798
Area 181,040 km²
GDP (USD) $42,335,646,896
GDP per capita $2,430
HDI 0.600
Life expectancy 70.7 years
Internet users 60.7%
Urban population 40.6%
Currency KHR (Riels)
Languages Khmer
Calling code +855
TLD .kh
Driving side right

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Frequently Asked Questions About Ou Chum

What is the population of Ou Chum?

Ou Chum has a population of 17,000 residents and is located in Cambodia. The population density is 55 people per square mile, spread across 309.4 square miles.

What is the weather like in Ou Chum?

Ou Chum has a warm climate with an average annual temperature of 79°F (26°C). Winter temperatures average 74°F in January, while summers reach an average of 82°F in July. Annual rainfall totals 94.8 inches.

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