Reservoir · New South Wales · Australia · BOM Water Data Online
Woronora
92.6% full
Capacity
71.8 hm³
Volume stored
67 hm³
River
Woronora River
Year completed
1941
Coordinates
34.126°S, 150.927°E
Last updated
2026-09-09
Current fill
92.6%vs 7 days ago
-0.3%losing
vs 1 year ago
-8.5%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: 2026-09-09.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -34.126, 150.927 · Open in Google Maps
About Woronora
As of September 9, 2026, Woronora is filled to 92.6% of its total capacity, holding roughly 67 hm³ of water out of a maximum 72 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.3 pts), and it is 8.5 points below its level on the same date a year earlier.
Across the readings we hold for Woronora — 1095 data points between September 11, 2023 and September 9, 2026 — the level has ranged from a low of 89.8% (April 3, 2024) to a high of 102.2% (June 7, 2024). On average the reservoir is fullest around June and at its lowest around March.
The dam at Woronora was completed in 1941. It is operated by BOM primarily for water supply. It lies within the Woronora River Basin basin at 34.126°S, 150.927°E.
Key facts
- Current fill level
- 92.6%
- Water stored
- 67 hm³
- Total capacity
- 72 hm³
- 7-day change
- ▼ 0.3 pts
- Year-on-year
- ▼ 8.5 pts
- Primary use
- Water supply
- River
- Woronora River
- River basin
- Woronora River Basin
- Year completed
- 1941
- Operator
- BOM
- Coordinates
- 34.126°S, 150.927°E
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 92.6% | 66 |
| 8 Sep 2026 | 92.6% | 67 |
| 7 Sep 2026 | 92.7% | 67 |
| 6 Sep 2026 | 92.7% | 67 |
| 5 Sep 2026 | 92.7% | 67 |
| 4 Sep 2026 | 92.8% | 67 |
| 3 Sep 2026 | 92.8% | 67 |
| 2 Sep 2026 | 92.9% | 67 |
| 1 Sep 2026 | 92.9% | 67 |
| 31 Aug 2026 | 92.9% | 67 |
| 30 Aug 2026 | 92.9% | 67 |
| 29 Aug 2026 | 92.9% | 67 |