Reservoir · New South Wales · Australia · BOM Water Data Online
Lake Cawndilla
26.6% full
Capacity
631.1 hm³
Volume stored
168 hm³
Coordinates
32.473°S, 142.228°E
Last updated
2026-10-25
Current fill
26.6%vs 7 days ago
-0.4 pplosing
vs 1 year ago
-54.8 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
47%of normal
26.6% full on 2026-10-25, against an average of 57.0% for October across 4 years of readings (-30.4 points).
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around Lake Cawndilla 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 +0.31). Rain, not storage. Australia drought figures →
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: 2026-10-25.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 32.473°S, 142.228°E · Open in Google Maps
About Lake Cawndilla
As of October 25, 2026, Lake Cawndilla is filled to 26.6% of its total capacity, holding 167.86 hm³ of water out of a maximum 631.1 hm³. At this level the reservoir is low. Of that total, 545 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (-0.4 pp), and it is 54.8 points below its level on the same date a year earlier.
Across the readings we hold for Lake Cawndilla — 1094 data points between October 28, 2023 and October 25, 2026 — the level has ranged from a low of 23.5% (April 21, 2025) to a high of 87.2% (September 29, 2025). On average the reservoir is fullest around November and at its lowest around April.
It is operated by BOM primarily for water supply. It is at 32.473°S, 142.228°E.
Key facts
- Current fill level
- 26.6% of total capacity
- Water stored
- 167.86 hm³
- Total capacity
- 631.1 hm³
- Usable capacity
- 545 hm³
- 7-day change
- ▼ 0.4 pp
- Year-on-year
- ▼ 54.8 pp
- Primary use
- Water supply
- Operator
- BOM
- Coordinates
- 32.473°S, 142.228°E
- Last updated
- October 25, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 25 Oct 2026 | 26.6% | 167.86 |
| 24 Oct 2026 | 26.7% | 168.49 |
| 23 Oct 2026 | 26.7% | 168.71 |
| 22 Oct 2026 | 26.8% | 169.34 |
| 21 Oct 2026 | 26.9% | 169.51 |
| 20 Oct 2026 | 26.9% | 169.57 |
| 19 Oct 2026 | 27.0% | 170.2 |
| 18 Oct 2026 | 27.0% | 170.37 |
| 17 Oct 2026 | 26.7% | 168.58 |
| 16 Oct 2026 | 24.0% | 151.7 |
| 15 Oct 2026 | 26.3% | 166.08 |
| 14 Oct 2026 | 27.1% | 171.23 |