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Tierpoort Dam

101.6% full

Total capacity

34 hm³

River

Tierpoort River

Basin

Vaal-Orange

Primary use

water supply

Operator

DWS South Africa

Coordinates

29.422°S, 26.136°E

Last updated

2026-10-19

Current fill

101.6%
Full

vs 7 days ago

0.0 pp

stable

vs 1 year ago

+9.5 pp

year-over-year

7-day trend

→

stable

Drought context

Rain over the last three months · 11 October 2026

Moderately wet

In the three months to 11 October 2026 the area around Tierpoort Dam had more rain than 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 +1.44). 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. 29.422°S, 26.136°E · Open in Google Maps

About Tierpoort Dam

As of October 19, 2026, Tierpoort Dam is filled to 101.6% of its total capacity, holding 34.5 hm³ of water out of a maximum 34 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 is 9.5 points above its level on the same date a year earlier.

Across the readings we hold for Tierpoort Dam — 20 data points between October 19, 2025 and October 19, 2026 — the level has ranged from a low of 92.1% (October 19, 2025) to a high of 107.6% (September 28, 2026). On average the reservoir is fullest around September and at its lowest around August.

It is operated by DWS South Africa primarily for water supply. It lies within the Vaal-Orange basin at 29.422°S, 26.136°E.

Key facts

Current fill level
101.6% of total capacity
Water stored
34.5 hm³
Total capacity
34 hm³
7-day change
No change
Year-on-year
▲ 9.5 pp
Primary use
Water supply
River
Tierpoort River
River basin
Vaal-Orange
Operator
DWS South Africa
Coordinates
29.422°S, 26.136°E
Last updated
October 19, 2026

Recent readings

DateFill levelVolume (hm³)
19 Oct 2026101.6%34.5
12 Oct 2026101.6%34.5
5 Oct 2026102.4%34.8
28 Sep 2026107.6%36.6
21 Sep 202699.3%33.8
31 Aug 202698.9%33.6
24 Aug 202699.2%33.7
17 Aug 202699.7%33.9
10 Aug 202698.9%33.6
3 Aug 202699.2%33.7
27 Jul 2026100.0%34
29 Jun 2026100.2%34.1

Nearby reservoirs

See also: South Africa dam levels, explained — how the DWS Weekly State of Dams report becomes the national and provincial figures.