Reservoir · Victoria · Australia · BOM Water Data Online
Wartook Reservoir
81.1% full
Capacity
29.3 hm³
Volume stored
24 hm³
River
Upper MacKenzie River
Year completed
1887
Coordinates
37.076°S, 142.453°E
Last updated
2026-09-10
Current fill
81.1%vs 7 days ago
+2.7%gaining
vs 1 year ago
+34.0%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. -37.076, 142.453 · Open in Google Maps
About Wartook Reservoir
As of September 10, 2026, Wartook Reservoir is filled to 81.1% of its total capacity, holding roughly 24 hm³ of water out of a maximum 29 hm³. At this level the reservoir is high. Of that total, about 26 hm³ is usable (live) storage.
Over the most recent week on record the fill level has risen by 2.7 percentage points, and it is 34.0 points above its level on the same date a year earlier.
Across the readings we hold for Wartook Reservoir — 1096 data points between September 11, 2023 and September 10, 2026 — the level has ranged from a low of 25.2% (June 4, 2025) to a high of 98.9% (September 21, 2023). On average the reservoir is fullest around October and at its lowest around May.
The dam at Wartook Reservoir was completed in 1887. It is operated by BOM primarily for water supply. It lies within the Upper MacKenzie River Basin basin at 37.076°S, 142.453°E.
Key facts
- Current fill level
- 81.1%
- Water stored
- 24 hm³
- Total capacity
- 29 hm³
- Usable capacity
- 26 hm³
- 7-day change
- ▲ 2.7 pts
- Year-on-year
- ▲ 34.0 pts
- Primary use
- Water supply
- River
- Upper MacKenzie River
- River basin
- Upper MacKenzie River Basin
- Year completed
- 1887
- Operator
- BOM
- Coordinates
- 37.076°S, 142.453°E
- Last updated
- September 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Sep 2026 | 81.1% | 24 |
| 9 Sep 2026 | 81.0% | 24 |
| 8 Sep 2026 | 80.9% | 24 |
| 7 Sep 2026 | 80.6% | 24 |
| 6 Sep 2026 | 80.2% | 24 |
| 5 Sep 2026 | 79.5% | 23 |
| 4 Sep 2026 | 78.8% | 23 |
| 3 Sep 2026 | 78.4% | 23 |
| 2 Sep 2026 | 78.3% | 23 |
| 1 Sep 2026 | 78.1% | 23 |
| 31 Aug 2026 | 77.9% | 23 |
| 30 Aug 2026 | 77.7% | 23 |