Reservoir · Victoria · Australia · Melbourne Water
Maroondah
95.2% full
Capacity
22.179 hm³
Volume stored
21 hm³
River
Watts River
Year completed
1927
Coordinates
37.634°S, 145.564°E
Last updated
2026-10-29
Current fill
95.2%vs 7 days ago
-0.4 pplosing
vs 1 year ago
+26.1 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
126%of normal
95.2% full on 2026-10-29, against an average of 75.6% for October across 4 years of readings (+19.6 points).
Rain over the last three months · 11 October 2026
Near normal
In the three months to 11 October 2026 the area around Maroondah 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 −0.51). Rain, not storage. Australia drought figures →
Data source: Melbourne Water daily storage — reference capacity and stored volume. Earlier daily volumes in the chart are Bureau of Meteorology readings, recomputed against that capacity. Last reading: 2026-10-29.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 37.634°S, 145.564°E · Open in Google Maps
About Maroondah
As of October 29, 2026, Maroondah is filled to 95.2% of its total capacity, holding 21.11 hm³ of water out of a maximum 22.179 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.4 pp), and it is 26.1 points above its level on the same date a year earlier.
Across the readings we hold for Maroondah — 1063 data points between October 29, 2023 and October 29, 2026 — the level has ranged from a low of 20.7% (May 11, 2025) to a high of 100.7% (December 2, 2025). On average the reservoir is fullest around December and at its lowest around May.
The dam at Maroondah was completed in 1927. It is operated by Melbourne Water primarily for water supply. It lies within the Watts River Basin basin at 37.634°S, 145.564°E.
Key facts
- Current fill level
- 95.2% of total capacity
- Water stored
- 21.11 hm³
- Total capacity
- 22.179 hm³
- 7-day change
- ▼ 0.4 pp
- Year-on-year
- ▲ 26.1 pp
- Primary use
- Water supply
- River
- Watts River
- River basin
- Watts River Basin
- Year completed
- 1927
- Operator
- Melbourne Water
- Coordinates
- 37.634°S, 145.564°E
- Last updated
- October 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Oct 2026 | 95.2% | 21.11 |
| 28 Oct 2026 | 95.5% | 21.188 |
| 27 Oct 2026 | 95.8% | 21.247 |
| 26 Oct 2026 | 95.9% | 21.266 |
| 25 Oct 2026 | 94.6% | 20.992 |
| 24 Oct 2026 | 94.7% | 21.012 |
| 23 Oct 2026 | 95.2% | 21.11 |
| 22 Oct 2026 | 95.6% | 21.21 |
| 21 Oct 2026 | 96.0% | 21.29 |
| 20 Oct 2026 | 96.0% | 21.29 |
| 19 Oct 2026 | 96.3% | 21.35 |
| 18 Oct 2026 | 96.6% | 21.43 |