Reservoir · Victoria · Australia · BOM Water Data Online
Korweinguboora Reservoir
86.4% full
Capacity
2.3 hm³
Volume stored
2 hm³
River
Moorabool River East Branch
Year completed
1910
Coordinates
37.503°S, 144.145°E
Last updated
2026-10-26
Current fill
86.4%vs 7 days ago
+0.3 ppgaining
vs 1 year ago
+66.6 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
215%of normal
86.4% full on 2026-10-26, against an average of 40.1% for October across 4 years of readings (+46.3 points).
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around Korweinguboora 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 +0.07). 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: 2026-10-26.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 37.503°S, 144.145°E · Open in Google Maps
About Korweinguboora Reservoir
As of October 26, 2026, Korweinguboora Reservoir is filled to 86.4% of its total capacity, holding 2.02 hm³ of water out of a maximum 2.3 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.3 pp), and it is 66.6 points above its level on the same date a year earlier.
Across the readings we hold for Korweinguboora Reservoir — 1086 data points between October 29, 2023 and October 26, 2026 — the level has ranged from a low of 0.4% (June 3, 2026) to a high of 99.6% (August 21, 2026). On average the reservoir is fullest around September and at its lowest around May.
The dam at Korweinguboora Reservoir was completed in 1910. It is operated by BOM primarily for water supply. It lies within the Moorabool River East Branch Basin basin at 37.503°S, 144.145°E.
Key facts
- Current fill level
- 86.4% of total capacity
- Water stored
- 2.02 hm³
- Total capacity
- 2.3 hm³
- 7-day change
- ▲ 0.3 pp
- Year-on-year
- ▲ 66.6 pp
- Primary use
- Water supply
- River
- Moorabool River East Branch
- River basin
- Moorabool River East Branch Basin
- Year completed
- 1910
- Operator
- BOM
- Coordinates
- 37.503°S, 144.145°E
- Last updated
- October 26, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 26 Oct 2026 | 86.4% | 2.02 |
| 25 Oct 2026 | 83.7% | 1.95 |
| 24 Oct 2026 | 81.9% | 1.91 |
| 23 Oct 2026 | 83.9% | 1.96 |
| 22 Oct 2026 | 84.8% | 1.98 |
| 21 Oct 2026 | 85.1% | 1.99 |
| 20 Oct 2026 | 85.2% | 1.99 |
| 19 Oct 2026 | 86.1% | 2.01 |
| 18 Oct 2026 | 86.9% | 2.03 |
| 17 Oct 2026 | 87.7% | 2.05 |
| 16 Oct 2026 | 88.4% | 2.06 |
| 15 Oct 2026 | 89.1% | 2.08 |