Reservoir · Victoria · Australia · BOM Water Data Online
Green Lake
75.5% full
Capacity
5.4 hm³
Volume stored
4 hm³
River
Off-stream
Coordinates
36.793°S, 142.293°E
Last updated
2026-09-10
Current fill
75.5%vs 7 days ago
+7.5%gaining
vs 1 year ago
+27.3%year-over-year
7-day trend
↑rising
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: 2026-09-10.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -36.793, 142.293 · Open in Google Maps
About Green Lake
As of September 10, 2026, Green Lake is filled to 75.5% of its total capacity, holding roughly 4 hm³ of water out of a maximum 5 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has risen by 7.5 percentage points, and it is 27.3 points above its level on the same date a year earlier.
Across the readings we hold for Green Lake — 1096 data points between September 11, 2023 and September 10, 2026 — the level has ranged from a low of 24.2% (May 15, 2026) to a high of 90.9% (September 11, 2023). On average the reservoir is fullest around October and at its lowest around May.
It is operated by BOM primarily for water supply. It lies within the Off-stream Basin basin at 36.793°S, 142.293°E.
Key facts
- Current fill level
- 75.5%
- Water stored
- 4 hm³
- Total capacity
- 5 hm³
- 7-day change
- ▲ 7.5 pts
- Year-on-year
- ▲ 27.3 pts
- Primary use
- Water supply
- River
- Off-stream
- River basin
- Off-stream Basin
- Operator
- BOM
- Coordinates
- 36.793°S, 142.293°E
- Last updated
- September 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Sep 2026 | 75.5% | 4 |
| 9 Sep 2026 | 74.5% | 4 |
| 8 Sep 2026 | 73.4% | 4 |
| 7 Sep 2026 | 72.3% | 4 |
| 6 Sep 2026 | 71.1% | 4 |
| 5 Sep 2026 | 69.7% | 4 |
| 4 Sep 2026 | 68.7% | 4 |
| 3 Sep 2026 | 68.0% | 4 |
| 2 Sep 2026 | 67.2% | 4 |
| 1 Sep 2026 | 66.2% | 4 |
| 31 Aug 2026 | 65.0% | 3 |
| 30 Aug 2026 | 63.4% | 3 |