Dam · Eastern Cape · South Africa · DWS
Xonxa Dam
100.2% full
Total capacity
116.4 Mm³
River
White Kei River
Basin
Unknown
Primary use
water supply
Operator
DWS South Africa
Coordinates
-31.838°S, 27.182°E
Last updated
2026-06-29
Current fill
100.2%vs 7 days ago
+0.3%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.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -31.838, 27.182 · Open in Google Maps
About Xonxa Dam
As of June 29, 2026, Xonxa Dam is filled to 100.2% of its total capacity, holding roughly 117 Mm³ of water out of a maximum 116 Mm³. At this level the reservoir is effectively full.
Over the most recent week on record the fill level has held broadly steady (+0.3 pts).
Across the readings we hold for Xonxa Dam — 8 data points between May 31, 2026 and June 29, 2026 — the level has ranged from a low of 98.1% (June 3, 2026) to a high of 100.2% (June 29, 2026).
It is operated by DWS South Africa primarily for water supply. It lies within the Unknown basin at 31.838°S, 27.182°E.
Key facts
- Current fill level
- 100.2%
- Water stored
- 117 Mm³
- Total capacity
- 116 Mm³
- 7-day change
- ▲ 0.3 pts
- Primary use
- Water supply
- River
- White Kei River
- River basin
- Unknown
- Operator
- DWS South Africa
- Coordinates
- 31.838°S, 27.182°E
- Last updated
- June 29, 2026
Recent readings
| Date | Fill level | Volume (Mm³) |
|---|---|---|
| 29 Jun 2026 | 100.2% | 117 |
| 22 Jun 2026 | 99.9% | 116 |
| 16 Jun 2026 | 100.0% | 116 |
| 9 Jun 2026 | 100.0% | 116 |
| 8 Jun 2026 | 98.1% | 114 |
| 7 Jun 2026 | 98.1% | 114 |
| 3 Jun 2026 | 98.1% | 114 |
| 31 May 2026 | 98.3% | 114 |
Frequently asked questions
What is the current water level of Xonxa Dam?
As of June 29, 2026, Xonxa Dam is at 100.2% of its capacity, holding approximately 117 Mm³ of water, according to DWS South Africa data.
Is Xonxa Dam reservoir full?
Xonxa Dam is essentially full, sitting at 100.2% of capacity as of June 29, 2026.
Is the water level at Xonxa Dam rising or falling?
The level at Xonxa Dam has been broadly stable over the latest week on record (+0.3 points).
How much water can Xonxa Dam hold?
Xonxa Dam has a total capacity of 116 Mm³.
Where is Xonxa Dam reservoir located?
Xonxa Dam is located in Eastern Cape, South Africa, within the Unknown basin (coordinates 31.838°S, 27.182°E).
What is Xonxa Dam used for?
Xonxa Dam is used primarily for water supply, and is managed by DWS South Africa.
Nearby reservoirs
See also: South Africa dam levels, explained — how the DWS Weekly State of Dams report becomes the national and provincial figures.