Dam · KwaZulu-Natal · South Africa · DWS
Zaaihoek Dam
100.9% full
Total capacity
184.3 hm³
River
Slang River
Basin
Pongola-Mtamvuna
Primary use
water supply
Operator
DWS South Africa
Coordinates
27.439°S, 30.060°E
Last updated
2026-10-19
Current fill
100.9%vs 7 days ago
0.0 ppstable
vs 1 year ago
+0.4 ppyear-over-year
7-day trend
→stable
Drought context
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around Zaaihoek Dam had rain close to normal for the season. Rainfall compared with the long-run record for the same season at this point (Copernicus Global Drought Observatory, SPI-3 index +0.56). Rain, not storage. South Africa drought figures →
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. 27.439°S, 30.060°E · Open in Google Maps
About Zaaihoek Dam
As of October 19, 2026, Zaaihoek Dam is filled to 100.9% of its total capacity, holding 186 hm³ of water out of a maximum 184.3 hm³. At this level the reservoir is effectively full.
Over the most recent week on record the fill level has held broadly steady (+0.0 pp), and it sits close to where it was a year earlier.
Across the readings we hold for Zaaihoek Dam — 19 data points between October 19, 2025 and October 19, 2026 — the level has ranged from a low of 100.5% (October 19, 2025) to a high of 100.9% (October 5, 2026). On average the reservoir is fullest around October and at its lowest around May.
It is operated by DWS South Africa primarily for water supply. It lies within the Pongola-Mtamvuna basin at 27.439°S, 30.060°E.
Key facts
- Current fill level
- 100.9% of total capacity
- Water stored
- 186 hm³
- Total capacity
- 184.3 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 0.4 pp
- Primary use
- Water supply
- River
- Slang River
- River basin
- Pongola-Mtamvuna
- Operator
- DWS South Africa
- Coordinates
- 27.439°S, 30.060°E
- Last updated
- October 19, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 19 Oct 2026 | 100.9% | 186 |
| 12 Oct 2026 | 100.9% | 186 |
| 5 Oct 2026 | 100.9% | 186 |
| 21 Sep 2026 | 100.8% | 185.8 |
| 31 Aug 2026 | 100.5% | 185.2 |
| 24 Aug 2026 | 100.5% | 185.2 |
| 17 Aug 2026 | 100.5% | 185.2 |
| 10 Aug 2026 | 100.5% | 185.2 |
| 3 Aug 2026 | 100.5% | 185.2 |
| 27 Jul 2026 | 100.5% | 185.2 |
| 29 Jun 2026 | 100.5% | 185.2 |
| 22 Jun 2026 | 100.5% | 185.2 |
Nearby reservoirs
See also: South Africa dam levels, explained — how the DWS Weekly State of Dams report becomes the national and provincial figures.