Reservoir · Victoria · Australia · BOM Water Data Online
Rocklands Reservoir
44.9% full
Capacity
296 hm³
Volume stored
133 hm³
River
Mid-Glenelg River
Year completed
1953
Coordinates
37.252°S, 142.074°E
Last updated
2026-10-27
Current fill
44.9%vs 7 days ago
+0.1 ppgaining
vs 1 year ago
+10.4 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
106%of normal
44.9% full on 2026-10-27, against an average of 42.5% for October across 4 years of readings (+2.4 points).
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around Rocklands Reservoir 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 −0.87). 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. 37.252°S, 142.074°E · Open in Google Maps
About Rocklands Reservoir
As of October 27, 2026, Rocklands Reservoir is filled to 44.9% of its total capacity, holding 132.78 hm³ of water out of a maximum 296 hm³. At this level the reservoir is within its normal operating range. Of that total, 293 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.1 pp), and it is 10.4 points above its level on the same date a year earlier.
Across the readings we hold for Rocklands Reservoir — 1096 data points between October 28, 2023 and October 27, 2026 — the level has ranged from a low of 25.9% (April 30, 2026) to a high of 59.9% (October 28, 2023). On average the reservoir is fullest around November and at its lowest around May.
The dam at Rocklands Reservoir was completed in 1953. It is operated by BOM primarily for water supply. It lies within the Mid-Glenelg River Basin basin at 37.252°S, 142.074°E.
Key facts
- Current fill level
- 44.9% of total capacity
- Water stored
- 132.78 hm³
- Total capacity
- 296 hm³
- Usable capacity
- 293 hm³
- 7-day change
- ▲ 0.1 pp
- Year-on-year
- ▲ 10.4 pp
- Primary use
- Water supply
- River
- Mid-Glenelg River
- River basin
- Mid-Glenelg River Basin
- Year completed
- 1953
- Operator
- BOM
- Coordinates
- 37.252°S, 142.074°E
- Last updated
- October 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Oct 2026 | 44.9% | 132.78 |
| 26 Oct 2026 | 44.9% | 132.87 |
| 25 Oct 2026 | 44.9% | 132.88 |
| 24 Oct 2026 | 44.8% | 132.7 |
| 23 Oct 2026 | 44.8% | 132.67 |
| 22 Oct 2026 | 44.9% | 132.83 |
| 21 Oct 2026 | 44.9% | 132.76 |
| 20 Oct 2026 | 44.8% | 132.64 |
| 19 Oct 2026 | 44.8% | 132.65 |
| 18 Oct 2026 | 44.8% | 132.64 |
| 17 Oct 2026 | 44.8% | 132.49 |
| 16 Oct 2026 | 44.7% | 132.3 |