Dam · Free State · South Africa · DWS
Groothoek Dam
92.6% full
Total capacity
11.9 Mm³
River
Kgabanyane River
Basin
Unknown
Primary use
water supply
Operator
DWS South Africa
Coordinates
-29.303°S, 26.848°E
Last updated
2026-08-31
Current fill
92.6%vs 7 days ago
-0.6%losing
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.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
About Groothoek Dam
As of August 31, 2026, Groothoek Dam is filled to 92.6% of its total capacity, holding roughly 11 Mm³ of water out of a maximum 12 Mm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.6 pts).
Across the readings we hold for Groothoek Dam — 14 data points between May 31, 2026 and August 31, 2026 — the level has ranged from a low of 92.6% (August 31, 2026) to a high of 99.2% (June 9, 2026).
It is operated by DWS South Africa primarily for water supply. It lies within the Unknown basin at 29.303°S, 26.848°E.
Key facts
- Current fill level
- 92.6%
- Water stored
- 11 Mm³
- Total capacity
- 12 Mm³
- 7-day change
- ▼ 0.6 pts
- Primary use
- Water supply
- River
- Kgabanyane River
- River basin
- Unknown
- Operator
- DWS South Africa
- Coordinates
- 29.303°S, 26.848°E
- Last updated
- August 31, 2026
Recent readings
| Date | Fill level | Volume (Mm³) |
|---|---|---|
| 31 Aug 2026 | 92.6% | 11 |
| 24 Aug 2026 | 93.2% | 11 |
| 17 Aug 2026 | 93.6% | 11 |
| 10 Aug 2026 | 93.6% | 11 |
| 3 Aug 2026 | 94.4% | 11 |
| 27 Jul 2026 | 95.2% | 11 |
| 29 Jun 2026 | 97.5% | 12 |
| 22 Jun 2026 | 97.5% | 12 |
| 16 Jun 2026 | 99.2% | 12 |
| 9 Jun 2026 | 99.2% | 12 |
| 8 Jun 2026 | 98.5% | 12 |
| 7 Jun 2026 | 98.5% | 12 |
Nearby reservoirs
See also: South Africa dam levels, explained — how the DWS Weekly State of Dams report becomes the national and provincial figures.