Reservoir · Western Australia · Australia · BOM Water Data Online
Wungong
47.4% full
Capacity
59.8 hm³
Volume stored
28 hm³
River
Wungong Brook
Year completed
1979
Coordinates
32.216°S, 116.077°E
Last updated
2026-09-07
Current fill
47.4%vs 7 days ago
+0.5%gaining
vs 1 year ago
-11.3%year-over-year
7-day trend
→stable
Data source: Bureau of Meteorology — Water Data Online (KiWIS) — daily mean storage volume, quality-controlled. Capacity from the BOM Water Storages ArcGIS layer (total design capacity in ML). Last reading: 2026-09-07.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -32.216, 116.077 · Open in Google Maps
About Wungong
As of September 7, 2026, Wungong is filled to 47.4% of its total capacity, holding roughly 28 hm³ of water out of a maximum 60 hm³. At this level the reservoir is within its normal operating range. Of that total, about 56 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.5 pts), and it is 11.3 points below its level on the same date a year earlier.
Across the readings we hold for Wungong — 1075 data points between September 11, 2023 and September 7, 2026 — the level has ranged from a low of 46.7% (September 3, 2026) to a high of 79.3% (September 15, 2023). On average the reservoir is fullest around October and at its lowest around August.
The dam at Wungong was completed in 1979. It is operated by BOM primarily for water supply. It lies within the Wungong Brook Basin basin at 32.216°S, 116.077°E.
Key facts
- Current fill level
- 47.4%
- Water stored
- 28 hm³
- Total capacity
- 60 hm³
- Usable capacity
- 56 hm³
- 7-day change
- ▲ 0.5 pts
- Year-on-year
- ▼ 11.3 pts
- Primary use
- Water supply
- River
- Wungong Brook
- River basin
- Wungong Brook Basin
- Year completed
- 1979
- Operator
- BOM
- Coordinates
- 32.216°S, 116.077°E
- Last updated
- September 7, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 7 Sep 2026 | 47.4% | 28 |
| 6 Sep 2026 | 47.0% | 28 |
| 5 Sep 2026 | 46.7% | 28 |
| 4 Sep 2026 | 46.7% | 28 |
| 3 Sep 2026 | 46.7% | 28 |
| 2 Sep 2026 | 46.8% | 28 |
| 1 Sep 2026 | 46.9% | 28 |
| 31 Aug 2026 | 46.9% | 28 |
| 30 Aug 2026 | 47.0% | 28 |
| 29 Aug 2026 | 47.1% | 28 |
| 28 Aug 2026 | 47.2% | 28 |
| 27 Aug 2026 | 47.3% | 28 |