Dam · Eastern Cape · South Africa · DWS
Glen Melville Dam
71.3% full
Total capacity
6.23 Mm³
River
Water from Fish river via Ecca tunnel River
Basin
Unknown
Primary use
water supply
Operator
DWS South Africa
Last updated
2026-08-31
Current fill
71.3%vs 7 days ago
-4.3%losing
vs 1 year ago
N/A7-day trend
↓falling
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.
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 0.000, 0.000 · Open in Google Maps
About Glen Melville Dam
As of August 31, 2026, Glen Melville Dam is filled to 71.3% of its total capacity, holding roughly 4 Mm³ of water out of a maximum 6 Mm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 4.3 percentage points.
Across the readings we hold for Glen Melville Dam — 14 data points between May 31, 2026 and August 31, 2026 — the level has ranged from a low of 71.3% (August 31, 2026) to a high of 97.8% (June 22, 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
- 71.3%
- Water stored
- 4 Mm³
- Total capacity
- 6 Mm³
- 7-day change
- ▼ 4.3 pts
- Primary use
- Water supply
- River
- Water from Fish river via Ecca tunnel River
- River basin
- Unknown
- Operator
- DWS South Africa
- Coordinates
- 0.000°N, 0.000°E
- Last updated
- August 31, 2026
Recent readings
| Date | Fill level | Volume (Mm³) |
|---|---|---|
| 31 Aug 2026 | 71.3% | 4 |
| 24 Aug 2026 | 75.6% | 5 |
| 17 Aug 2026 | 80.4% | 5 |
| 10 Aug 2026 | 82.5% | 5 |
| 3 Aug 2026 | 76.5% | 5 |
| 27 Jul 2026 | 74.6% | 5 |
| 29 Jun 2026 | 96.6% | 6 |
| 22 Jun 2026 | 97.8% | 6 |
| 16 Jun 2026 | 96.8% | 6 |
| 9 Jun 2026 | 96.8% | 6 |
| 8 Jun 2026 | 89.0% | 6 |
| 7 Jun 2026 | 89.0% | 6 |
See also: South Africa dam levels, explained — how the DWS Weekly State of Dams report becomes the national and provincial figures.