Reservoir · Victoria · Australia · BOM Water Data Online
Wartook Reservoir
84.4% full
Capacity
29.3 hm³
Volume stored
25 hm³
River
Upper MacKenzie River
Year completed
1887
Coordinates
37.076°S, 142.453°E
Last updated
2026-10-27
Current fill
84.4%vs 7 days ago
0.0 ppstable
vs 1 year ago
+34.0 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
129%of normal
84.4% full on 2026-10-27, against an average of 65.2% for October across 4 years of readings (+19.2 points).
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around Wartook 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 −0.24). 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. 37.076°S, 142.453°E · Open in Google Maps
About Wartook Reservoir
As of October 27, 2026, Wartook Reservoir is filled to 84.4% of its total capacity, holding 24.74 hm³ of water out of a maximum 29.3 hm³. At this level the reservoir is high. Of that total, 26.3 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.0 pp), and it is 34.0 points above its level on the same date a year earlier.
Across the readings we hold for Wartook Reservoir — 1095 data points between October 29, 2023 and October 27, 2026 — the level has ranged from a low of 25.2% (June 4, 2025) to a high of 95.7% (October 29, 2023). On average the reservoir is fullest around November 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
- 84.4% of total capacity
- Water stored
- 24.74 hm³
- Total capacity
- 29.3 hm³
- Usable capacity
- 26.3 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 34.0 pp
- 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
- October 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Oct 2026 | 84.4% | 24.74 |
| 26 Oct 2026 | 84.5% | 24.74 |
| 25 Oct 2026 | 84.3% | 24.7 |
| 24 Oct 2026 | 84.1% | 24.63 |
| 23 Oct 2026 | 84.1% | 24.64 |
| 22 Oct 2026 | 84.2% | 24.68 |
| 21 Oct 2026 | 84.3% | 24.7 |
| 20 Oct 2026 | 84.4% | 24.72 |
| 19 Oct 2026 | 84.6% | 24.77 |
| 18 Oct 2026 | 84.6% | 24.8 |
| 17 Oct 2026 | 84.7% | 24.81 |
| 16 Oct 2026 | 84.8% | 24.84 |