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Koster, South Africa

North West · South Africa

Koster is a small city in North West, South Africa with a population of 23,361. Elevation: 5,315 ft (1,620 m). Average temperature: 61°F (16°C).

Data updated June 2026

23,361 Population 14/sq mi density
5,315 ft Elevation 1,620 meters
61°F Avg Temperature 16°C
26.4 in Annual Rain
Africa / Johannesburg Timezone

Discover Koster, South Africa

Explore over 40 sections covering people, economy, housing, health, crime, climate, community, costs, trends, schools, colleges, hospitals, treatment centers, industries, museums, libraries, breweries, farmers markets, grocery stores, pharmacies, campgrounds, parks, trails, stadiums, ski resorts, daycare centers, nursing homes, churches, fire stations, cell towers, bridges, power plants, EV stations, prisons, radio stations, airports, police stations, post offices, Amtrak stations, superfund sites, UNESCO sites, and more.
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Full City Profile

About Koster

Koster is a small farming town situated on the watershed between the Orange and Limpopo Rivers in North West Province of South Africa.

People

Population23,361
Density14/mi²

Climate

Avg Temp61°F (16°C)
Rain26.4 in/yr
Sunny Days288/yr
Elevation5,315 ft (1,620 m)
Population23,361
Population Density14 / sq mi
Elevation5,315 ft (1,620 m)
Coordinates-25.8630°, 26.8976°
TimezoneAfrica/Johannesburg
Country🇿🇦 South Africa
State / ProvinceNorth West
Average Temperature61°F (16°C)
January Average70°F (21°C)
July Average49°F (9°C)
Annual Precipitation26.4 inches (670 mm)
Annual Snowfall0.0 inches (0 cm)

About Koster

Koster is a small city in South Africa (North West) with a population of 23,361. The city sits at an elevation of 5,315 feet (1,620 meters) above sea level. The average annual temperature is 61°F (16°C). Temperatures range from 70°F in January to 49°F in July. Annual precipitation averages 26.4 inches. The timezone is Africa/Johannesburg.

Climate in Koster

Koster has an average annual temperature of 17.6°C (64°F). The hottest month is Dec (22.4°C), the coldest is Jul (9.9°C). Average annual precipitation is 646 mm.

Month Avg °C / °F Min / Max °C Rain (mm)
Jan 22.1°C / 72°F 11.6° / 32.8° 133.9
Feb 21.7°C / 71°F 11.5° / 32.6° 103.7
Mar 20.7°C / 69°F 10.7° / 32° 60.0
Apr 16.9°C / 62°F 5.7° / 28.4° 77.8
May 13.9°C / 57°F 2.2° / 25.9° 12.4
Jun 10.1°C / 50°F -1.4° / 23° 6.5
Jul 9.9°C / 50°F -2.8° / 23.3° 3.1
Aug 13.4°C / 56°F -0.5° / 27.7° 2.9
Sep 17.8°C / 64°F 3.8° / 32.1° 9.2
Oct 20.8°C / 69°F 6.8° / 35.3° 32.3
Nov 22.2°C / 72°F 9.3° / 35.3° 78.5
Dec 22.4°C / 72°F 12° / 35.1° 126.2
Koster enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 70°F in January while summers reach 49°F in July / relatively mild seasonal variation. The area gets 288 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 26.4 inches (drier than the 38-inch national average). The city sits at an elevation of 5,315 feet, a high-altitude location.

Temperature

70°F Jan (21°C) 49°F Jul (9°C)
Annual Average61.4°F
14% above South Africa avg
January Average70°F (21°C)
July Average49°F (9°C)
Sunny Days288 days/yr

Geography

Elevation5,315 ft (1,620 m)
Area1,639.4 sq mi (4,245.9 km²)
Population Density14/sq mi
Coordinates-25.8630°N, 26.8976°W
TimezoneAfrica/Johannesburg

Precipitation & Snow

Annual Rainfall 26.4"
31% below South Africa avg
Snowfall 0.0"
Wettest Month (Jan) 5.00"
Driest Month (Jul) 0.20"

Air Quality

Earthquake History

963 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.4. Most recent: M4.8 on Jul 10, 2025.

Aug 5, 2014 3 km ESE of Orkney, South Africa M5.4 127 km
Apr 3, 2017 7 km SSE of Stilfontein, South Africa M5.2 117 km
Feb 10, 1997 5 km SSE of Orkney, South Africa M5.2 130 km
Nov 3, 1991 5 km SE of Klerksdorp, South Africa M5.1 116 km
Dec 1, 1991 2 km S of Klerksdorp, South Africa M5.0 115 km
Mar 16, 2009 8 km ENE of Orkney, South Africa M5.0 122 km
May 27, 2002 4 km ENE of Orkney, South Africa M5.0 124 km
Jul 21, 1997 4 km W of Klerksdorp, South Africa M5.0 114 km
Mar 9, 2005 7 km SSE of Stilfontein, South Africa M5.0 117 km
Jun 14, 2010 8 km NNW of Fochville, South Africa M5.0 84 km
Dec 11, 1997 7 km SSW of Klerksdorp, South Africa M4.9 119 km
Dec 5, 1998 9 km NNE of Fochville, South Africa M4.9 87 km
Aug 6, 2000 8 km SSW of Westonaria, South Africa M4.9 91 km
Jun 11, 2023 Gauteng, South Africa M4.9 136 km
Sep 6, 2004 17 km WNW of Klerksdorp, South Africa M4.9 109 km
Nov 25, 1995 South Africa M4.9 119 km
Jul 31, 2001 8 km SW of Klerksdorp, South Africa M4.9 120 km
Feb 17, 2005 13 km WSW of Klerksdorp, South Africa M4.9 122 km
Mar 7, 1992 14 km W of Fochville, South Africa M4.9 85 km
Jun 15, 2014 8 km E of Orkney, South Africa M4.9 126 km
Source: USGS (M2.5+, 1990-2025)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 70°F (21°C) 5.0 in Warmest, Wettest
February 69°F (20°C) 3.9 in
March 66°F (19°C) 3.6 in
April 61°F (16°C) 1.9 in
May 55°F (13°C) 0.6 in
June 50°F (10°C) 0.2 in
July 49°F (9°C) 0.2 in Coldest, Driest
August 54°F (12°C) 0.3 in
September 61°F (16°C) 0.9 in
October 66°F (19°C) 2.2 in
November 68°F (20°C) 3.3 in
December 69°F (21°C) 4.4 in

Koster has a seasonal temperature swing of 21°F / from 49°F in July to 70°F in January. Total annual precipitation is 26.4 inches, with January being the wettest month (5.0") and July the driest (0.2").

View full weather details →

Schools in Koster

7 public schools (NCES 2022-23 data).

School Level Enrollment Teachers Student/Teacher
Koster Combined School - - - -
Koster Primary School - - - -
Mphe-Bana High School - - - -
Moitshoki Mofenyi Primary School - - - -
Kgalagatsane Primary School - - - -
Koster Intermediate School - - - -
New Mphe Bana Secondary School - - - -
View full schools details →

Libraries in Koster

NameAddressStaffAnnual VisitsCirculationCollectionPrograms
Reagile Community Library0.0

Clinics in Koster

1 clinics within city radius - OpenStreetMap data

Koster Gateway Clinic

Train Stations in Koster

2 train stations within city radius - OpenStreetMap data

Chidima
Koster

Gas Stations in Koster

1 gas stations within city radius - OpenStreetMap data

Shell

Golf Courses in Koster

3 golf courses within city radius - OpenStreetMap data

Koster Golfklub
Millvale Driving Range
Millvale Golf Course

Stadiums & Teams in Koster

TeamLeagueDivision

Airports Near Koster

10 airports within the area.

AirportIATAType
Morningside Farm Airport-Medium Airport
Pilanesberg International AirportNTYMedium Airport
Rustenburg Airport-Medium Airport
Beestekraal Airport-Small Airport
Blue Mountain Valley Airport-Small Airport
Carltonville Airport-Small Airport
Lichtenburg Airport-Small Airport
Orient Glider Airport-Small Airport
Silver Creek Gorge Estate Airfield-Small Airport
Ventersdorp Airport-Small Airport

Churches & Religious Organizations in Koster

9 religious organizations (IRS tax-exempt data).

NameAddress
Afrikaanse Protestante Kerk
Apostolic Faith Mission
Divine Mercy Catholic Church
God's Word Embassy
Hervormde Kerk Koster
Koster Masjid
Nederduits Hervormde Kerk Koster
Spirit of Praise
The New Church of Southern Africa, Koster

Quick Facts

Timezone
Africa/Johannesburg
Elevation
1,620 m (5,315 ft)
Founded
1860
Postal Code
0348

🇿🇦 About South Africa

Capital Pretoria
Population 57,779,622
Area 1,219,912 km²
GDP (USD) $381,440,724,491
GDP per capita $6,034
HDI 0.717
Life expectancy 66.1 years
Internet users 75.7%
Urban population 63.6%
Currency ZAR (Rand)
Languages Afrikaans, English, Southern Ndebele, Northern Sotho, Southern Sotho, Swazi, Tswana, Tsonga, Vend...
Calling code +27
TLD .za
Driving side left

Public Holidays in South Africa

12 public holidays this year

Date Holiday Local Name
Jan 1 New Year's Day New Year's Day
Mar 21 Human Rights Day Human Rights Day
Apr 3 Good Friday Good Friday
Apr 6 Family Day Family Day
Apr 27 Freedom Day Freedom Day
May 1 Workers' Day Workers' Day
Jun 16 Youth Day Youth Day
Aug 10 National Women's Day National Women's Day
Sep 24 Heritage Day Heritage Day
Dec 16 Day of Reconciliation Day of Reconciliation
Dec 25 Christmas Day Christmas Day
Dec 26 Day of Goodwill St. Stephen's Day

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Frequently Asked Questions About Koster

What is the population of Koster?

Koster has a population of 23,361 residents and is located in South Africa. The population density is 14 people per square mile, spread across 1,639.4 square miles.

What is the weather like in Koster?

Koster enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winter temperatures average 70°F in January, while summers reach an average of 49°F in July. The area receives 288 sunny days per year, well above the national average of 205. Annual rainfall totals 26.4 inches.

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