Dam · Northern Cape · South Africa · DWS
Vaalharts Weir Dam
84.8% full
Total capacity
50.7 Mm³
River
Vaal River
Basin
Unknown
Primary use
water supply
Operator
DWS South Africa
Last updated
2026-06-09
Current fill
84.8%vs 7 days ago
+1.1%gaining
vs 1 year ago
N/A7-day trend
→stable
Weekly storage
Fill history — multi-year
About this dam
Data source
official
Storage data: Department of Water and Sanitation (DWS) Weekly State of Dams report, South Africa.
About Vaalharts Weir Dam
As of June 9, 2026, Vaalharts Weir Dam is filled to 84.8% of its total capacity, holding roughly 43 Mm³ of water out of a maximum 51 Mm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+1.1 pts).
Across the readings we hold for Vaalharts Weir Dam — 5 data points between May 31, 2026 and June 9, 2026 — the level has ranged from a low of 57.4% (May 31, 2026) to a high of 84.8% (June 9, 2026).
It is operated by DWS South Africa primarily for water supply. It lies within the Unknown basin at 0.000°N, 0.000°E.
Key facts
- Current fill level
- 84.8%
- Water stored
- 43 Mm³
- Total capacity
- 51 Mm³
- 7-day change
- ▲ 1.1 pts
- Primary use
- Water supply
- River
- Vaal River
- River basin
- Unknown
- Operator
- DWS South Africa
- Coordinates
- 0.000°N, 0.000°E
- Last updated
- June 9, 2026
Recent readings
| Date | Fill level | Volume (Mm³) |
|---|---|---|
| 9 Jun 2026 | 84.8% | 43 |
| 8 Jun 2026 | 83.7% | 42 |
| 7 Jun 2026 | 83.7% | 42 |
| 3 Jun 2026 | 83.7% | 42 |
| 31 May 2026 | 57.4% | 29 |
Frequently asked questions
What is the current water level of Vaalharts Weir Dam?
As of June 9, 2026, Vaalharts Weir Dam is at 84.8% of its capacity, holding approximately 43 Mm³ of water, according to DWS South Africa data.
Is Vaalharts Weir Dam reservoir full?
No. As of June 9, 2026, Vaalharts Weir Dam is high at 84.8% of its capacity, so it is not full.
Is the water level at Vaalharts Weir Dam rising or falling?
The level at Vaalharts Weir Dam has been broadly stable over the latest week on record (+1.1 points).
How much water can Vaalharts Weir Dam hold?
Vaalharts Weir Dam has a total capacity of 51 Mm³.
Where is Vaalharts Weir Dam reservoir located?
Vaalharts Weir Dam is located in Northern Cape, South Africa, within the Unknown basin (coordinates 0.000°N, 0.000°E).
What is Vaalharts Weir Dam used for?
Vaalharts Weir Dam is used primarily for water supply, and is managed by DWS South Africa.