Vanderkloof Dam

Reservoir Major hydroelectric dam on the Orange River

Vanderkloof Dam on South Africa’s Orange River forms a large reservoir used for hydroelectricity, boating and fishing, framed by sandstone ridges and semi‑arid landscapes.

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Vanderkloof Dam is a large river dam on the Orange River in South Africa’s Northern Cape province, built in the 1970s and completed in 1977 to provide hydroelectric power, irrigation storage and water regulation. The structure impounds a substantial reservoir that altered river flow and created new shoreline and recreational zones.

The site combines an engineered dam wall and power station with reservoir shoreline used for boating and fishing, and it supplies irrigation water to downstream agricultural areas. The installation is an important piece of regional infrastructure for water management and power generation.

The dam was constructed during the 1970s and commissioned in 1977 as part of broader development schemes on the Orange River. It remains operated as a multiuse dam serving power, irrigation and local recreation needs.

Geographically it sits on the Orange River near the settlement of Vanderkloof in the Northern Cape, inland from South Africa’s west coast and within the arid to semi-arid interior of the province.

  • Construction date: Construction took place in the 1970s and the dam was completed and brought into operation in 1977, creating a large reservoir on the Orange River.

What to See #

  • Hydroelectric station and reservoir: The dam structure includes an associated hydroelectric power station that generates electricity for the regional grid and an extensive reservoir used for irrigation and water supply.
  • Recreation areas: The dam wall and reservoir shoreline are used for recreational activities including boating and angling in season, with facilities and access points near the town of Vanderkloof.
Vanderkloof Dam
-30.0465, 24.8016

Best Time to Visit Vanderkloof Dam #

Best from spring into early summer for comfortable conditions at the dam and water activities, while midsummer is very hot.

Spring
September-November · 15-30 °C
Southern-hemisphere spring brings milder temperatures and good conditions for water-based recreation around the dam.
Summer
December-February · 25-38 °C
Hot, dry conditions typical of the Northern Cape; best for boating and water activities but expect high daytime heat.
Winter
June-August · 5-20 °C
Cooler and drier with comfortable daytime temperatures for outdoor exploration; mornings can be chilly.

Weather & Climate near Vanderkloof Dam #

Climate

Vanderkloof Dam's climate is classified as Hot Semi-Arid - Hot Semi-Arid climate with warm summers (peaking in January) and cool winters (coldest in July). Temperatures range from 4°C to 31°C. Semi-arid with limited rainfall.

Best Time to Visit
DecemberJanuaryOctober
Temperature & Rainfall
Temperature Range
42°
Warmest Month
-5°
Coldest Month
Monthly Conditions

January

January is the warmest month with highs of 31°C and lows of 18°C. Moderate rainfall (46 mm) and mostly sunny skies.

90 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
18° 31°
42%
Humidity
Comfortable

Weather

46 mm
Rainfall
3.2 m/s
Wind
Light Breeze
3.2
UV Index
Extreme
13.7h daylight

February

February is warm with highs of 30°C and lows of 18°C. The wettest month with 66 mm of rain and mostly sunny skies.

88 Excellent

Comfort

24°
Feels Like Warm
24°C
Temperature
18° 30°
47%
Humidity
Comfortable

Weather

66 mm
Rainfall
3.2 m/s
Wind
Light Breeze
2.8
UV Index
Extreme
13.0h daylight

March

March is mild with highs of 28°C and lows of 16°C. Moderate rainfall (60 mm) and mostly sunny skies.

85 Excellent

Comfort

22°
Feels Like Mild
22°C
Temperature
16° 28°
49%
Humidity
Comfortable

Weather

60 mm
Rainfall
2.7 m/s
Wind
Calm
2.2
UV Index
Extreme
12.1h daylight

April

April is mild with highs of 24°C and lows of 12°C. Moderate rainfall (35 mm) and mostly sunny skies.

89 Excellent

Comfort

18°
Feels Like Mild
18°C
Temperature
12° 24°
53%
Humidity
Humid

Weather

35 mm
Rainfall
2.4 m/s
Wind
Calm
1.4
UV Index
High
11.2h daylight

May

May is cool with highs of 21°C and lows of 8°C. Light rainfall and mostly sunny skies.

83 Excellent

Comfort

14°
Feels Like Cool
14°C
Temperature
21°
53%
Humidity
Humid

Weather

14 mm
Rainfall
2.0 m/s
Wind
Calm
0.9
UV Index
Moderate
10.5h daylight

June

June is cool with highs of 17°C and lows of 4°C. The driest month with just 9 mm and mostly sunny skies.

85 Excellent

Comfort

11°
Feels Like Cool
11°C
Temperature
17°
56%
Humidity
Humid

Weather

9 mm
Rainfall
2.2 m/s
Wind
Calm
0.7
UV Index
Moderate
10.1h daylight

July

July is the coolest month with highs of 17°C and lows of 4°C. Light rainfall and clear sunny skies.

85 Excellent

Comfort

11°
Feels Like Cool
11°C
Temperature
17°
52%
Humidity
Humid

Weather

10 mm
Rainfall
2.4 m/s
Wind
Calm
0.7
UV Index
Moderate
10.3h daylight

August

August is cool with highs of 19°C and lows of 5°C. Light rainfall and clear sunny skies.

85 Excellent

Comfort

12°
Feels Like Cool
12°C
Temperature
19°
45%
Humidity
Comfortable

Weather

13 mm
Rainfall
2.8 m/s
Wind
Calm
1.1
UV Index
High
10.9h daylight

September

September is cool with highs of 23°C and lows of 9°C. Light rainfall and mostly sunny skies.

88 Excellent

Comfort

16°
Feels Like Cool
16°C
Temperature
23°
37%
Humidity
Comfortable

Weather

14 mm
Rainfall
3.2 m/s
Wind
Light Breeze
1.5
UV Index
Very High
11.8h daylight

October

October is mild with highs of 25°C and lows of 12°C. Moderate rainfall (31 mm) and mostly sunny skies.

90 Ideal

Comfort

19°
Feels Like Mild
19°C
Temperature
12° 25°
37%
Humidity
Comfortable

Weather

31 mm
Rainfall
3.6 m/s
Wind
Light Breeze
2.2
UV Index
Extreme
12.7h daylight

November

November is mild with highs of 28°C and lows of 15°C. Moderate rainfall (30 mm) and mostly sunny skies.

90 Ideal

Comfort

22°
Feels Like Mild
22°C
Temperature
15° 28°
37%
Humidity
Comfortable

Weather

30 mm
Rainfall
3.6 m/s
Wind
Light Breeze
2.8
UV Index
Extreme
13.5h daylight

December

December is warm with highs of 31°C and lows of 17°C. Moderate rainfall (37 mm) and mostly sunny skies.

92 Ideal

Comfort

24°
Feels Like Warm
24°C
Temperature
17° 31°
38%
Humidity
Comfortable

Weather

37 mm
Rainfall
3.3 m/s
Wind
Light Breeze
3.2
UV Index
Extreme
13.9h daylight

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