Dam · Western Cape · South Africa · DWS
Wemmershoek Dam
93.1% full
Total capacity
58.8 Mm³
River
Wemmershoek
Basin
Berg-Breede
Primary use
water supply
Operator
City of Cape Town
Coordinates
-33.883°S, 19.050°E
Last updated
2026-08-31
Current fill
93.1%vs 7 days ago
-2.0%losing
vs 1 year ago
N/A7-day trend
↓falling
Weekly storage
Fill history — multi-year
About this dam
Dam height
52 m
Year built
1957
Dam type
Gravity
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
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -33.883, 19.050 · Open in Google Maps
About Wemmershoek Dam
As of August 31, 2026, Wemmershoek Dam is filled to 93.1% of its total capacity, holding roughly 55 Mm³ of water out of a maximum 59 Mm³. At this level the reservoir is high.
Over the most recent week on record the fill level has fallen by 2.0 percentage points.
Across the readings we hold for Wemmershoek Dam — 15 data points between May 31, 2026 and August 31, 2026 — the level has ranged from a low of 93.1% (August 31, 2026) to a high of 100.0% (June 29, 2026).
The dam at Wemmershoek Dam stands 52 m tall and is a gravity dam and was completed in 1957. It is operated by City of Cape Town primarily for water supply. It lies within the Berg-Breede basin at 33.883°S, 19.050°E.
Key facts
- Current fill level
- 93.1%
- Water stored
- 55 Mm³
- Total capacity
- 59 Mm³
- 7-day change
- ▼ 2.0 pts
- Primary use
- Water supply
- River
- Wemmershoek
- River basin
- Berg-Breede
- Dam height
- 52 m
- Year completed
- 1957
- Operator
- City of Cape Town
- Coordinates
- 33.883°S, 19.050°E
- Last updated
- August 31, 2026
Recent readings
| Date | Fill level | Volume (Mm³) |
|---|---|---|
| 31 Aug 2026 | 93.1% | 55 |
| 24 Aug 2026 | 95.1% | 56 |
| 17 Aug 2026 | 97.0% | 57 |
| 10 Aug 2026 | 98.1% | 58 |
| 3 Aug 2026 | 99.3% | 58 |
| 27 Jul 2026 | 100.0% | 59 |
| 6 Jul 2026 | 99.9% | 59 |
| 29 Jun 2026 | 100.0% | 59 |
| 22 Jun 2026 | 99.9% | 59 |
| 16 Jun 2026 | 97.8% | 58 |
| 9 Jun 2026 | 97.8% | 58 |
| 8 Jun 2026 | 96.7% | 57 |
Nearby reservoirs
See also: South Africa dam levels, explained — how the DWS Weekly State of Dams report becomes the national and provincial figures.