Reservoir · Victoria · Australia · BOM Water Data Online
Green Lake
97.6% full
Capacity
5.4 hm³
Volume stored
5 hm³
River
Off-stream
Coordinates
36.793°S, 142.293°E
Last updated
2026-10-27
Current fill
97.6%vs 7 days ago
-1.1 pplosing
vs 1 year ago
+51.5 ppyear-over-year
7-day trend
↓falling
Drought context
Storage vs October average
137%of normal
97.6% full on 2026-10-27, against an average of 71.4% for October across 4 years of readings (+26.2 points).
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around Green Lake 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 +0.19). 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: 2026-10-27.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 36.793°S, 142.293°E · Open in Google Maps
About Green Lake
As of October 27, 2026, Green Lake is filled to 97.6% of its total capacity, holding 5.22 hm³ of water out of a maximum 5.4 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has fallen by 1.1 percentage points, and it is 51.5 points above its level on the same date a year earlier.
Across the readings we hold for Green Lake — 1096 data points between October 28, 2023 and October 27, 2026 — the level has ranged from a low of 24.2% (May 15, 2026) to a high of 103.4% (October 9, 2026). 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
- 97.6% of total capacity
- Water stored
- 5.22 hm³
- Total capacity
- 5.4 hm³
- 7-day change
- ▼ 1.1 pp
- Year-on-year
- ▲ 51.5 pp
- Primary use
- Water supply
- River
- Off-stream
- River basin
- Off-stream Basin
- Operator
- BOM
- Coordinates
- 36.793°S, 142.293°E
- Last updated
- October 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Oct 2026 | 97.6% | 5.22 |
| 26 Oct 2026 | 97.8% | 5.23 |
| 25 Oct 2026 | 97.8% | 5.23 |
| 24 Oct 2026 | 97.7% | 5.22 |
| 23 Oct 2026 | 97.8% | 5.23 |
| 22 Oct 2026 | 98.0% | 5.24 |
| 21 Oct 2026 | 98.3% | 5.26 |
| 20 Oct 2026 | 98.7% | 5.28 |
| 19 Oct 2026 | 99.1% | 5.3 |
| 18 Oct 2026 | 99.6% | 5.33 |
| 17 Oct 2026 | 100.2% | 5.36 |
| 16 Oct 2026 | 100.8% | 5.39 |